lib/Pod/Functions.pm

package Pod::Functions;
use strict;

=head1 NAME

Pod::Functions - Group Perl's functions a la perlfunc.pod

=head1 SYNOPSIS

    use Pod::Functions;
    
    my @misc_ops = @{ $Kinds{ 'Misc' } };
    my $misc_dsc = $Type_Description{ 'Misc' };

or

    perl /path/to/lib/Pod/Functions.pm

This will print a grouped list of Perl's functions, like the 
L<perlfunc/"Perl Functions by Category"> section.

=head1 DESCRIPTION

It exports the following variables:

=over 4

=item %Kinds

This holds a hash-of-lists. Each list contains the functions in the catagory
the key denotes.

=item %Type

In this hash each key represents a function and the value is the catagory.
The catagory can be a comma separated list.

=item %Flavor

In this hash each key represents a function and the value is a short 
description of that function.

=item %Type_Description

In this hash each key represents a catagory of functions and the value is 
a short description of that catagory.

=item @Type_Order

This list of catagories is used to produce the same order as the
L<perlfunc/"Perl Functions by Category"> section.

=back

=head1 CHANGES

1.02 20020813 <abe@ztreet.demon.nl>
    de-typo in the SYNOPSIS section (thanks Mike Castle for noticing)

1.01 20011229 <abe@ztreet.demon.nl>
    fixed some bugs that slipped in after 5.6.1
    added the pod
    finished making it strict safe

1.00 ??
    first numbered version

=cut

our $VERSION = '1.02';

require Exporter;

our @ISA = qw(Exporter);
our @EXPORT = qw(%Kinds %Type %Flavor %Type_Description @Type_Order);

our(%Kinds, %Type, %Flavor);

our %Type_Description = (
    'ARRAY'     => 'Functions for real @ARRAYs',
    'Binary'    => 'Functions for fixed length data or records',
    'File'      => 'Functions for filehandles, files, or directories',
    'Flow'      => 'Keywords related to control flow of your perl program',
    'HASH'      => 'Functions for real %HASHes',
    'I/O'       => 'Input and output functions',
    'LIST'      => 'Functions for list data',
    'Math'      => 'Numeric functions',
    'Misc'      => 'Miscellaneous functions',
    'Modules'   => 'Keywords related to perl modules',
    'Network'   => 'Fetching network info',
    'Objects'   => 'Keywords related to classes and object-orientedness',
    'Process'   => 'Functions for processes and process groups',
    'Regexp'    => 'Regular expressions and pattern matching',
    'Socket'    => 'Low-level socket functions',
    'String'    => 'Functions for SCALARs or strings',
    'SysV'      => 'System V interprocess communication functions',
    'Time'      => 'Time-related functions',
    'User'      => 'Fetching user and group info',
    'Namespace' => 'Keywords altering or affecting scoping of identifiers',
);

our @Type_Order = qw{
    String
    Regexp
    Math
    ARRAY
    LIST
    HASH
    I/O
    Binary
    File
    Flow
    Namespace
    Misc
    Process
    Modules
    Objects
    Socket
    SysV
    User
    Network
    Time
};

while (<DATA>) {
    chomp;
    s/#.*//;
    next unless $_;
    my($name, $type, $text) = split " ", $_, 3;
    $Type{$name} = $type;
    $Flavor{$name} = $text;
    for my $t ( split /[,\s]+/, $type ) {
        push @{$Kinds{$t}}, $name;
    }
}

close DATA;

my( $typedesc, $list );
unless (caller) { 
    foreach my $type ( @Type_Order ) {
        $list = join(", ", sort @{$Kinds{$type}});
        $typedesc = $Type_Description{$type} . ":";
        write;
    } 
}

format = 

^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
    $typedesc 
~~ ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
    $typedesc 
 ~~  ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
        $list
.

1;

__DATA__
-X      File    a file test (-r, -x, etc)
abs     Math    absolute value function
accept  Socket  accept an incoming socket connect
alarm   Process schedule a SIGALRM 
atan2   Math    arctangent of Y/X in the range -PI to PI
bind    Socket  binds an address to a socket
binmode I/O     prepare binary files for I/O
bless   Objects create an object 
caller  Flow,Namespace  get context of the current subroutine call
chdir   File    change your current working directory
chmod   File    changes the permissions on a list of files
chomp   String  remove a trailing record separator from a string
chop    String  remove the last character from a string
chown   File    change the owership on a list of files
chr     String  get character this number represents
chroot  File    make directory new root for path lookups
close   I/O     close file (or pipe or socket) handle
closedir        I/O     close directory handle
connect Socket  connect to a remote socket
continue        Flow    optional trailing block in a while or foreach 
cos     Math    cosine function
crypt   String  one-way passwd-style encryption
dbmclose        Objects,I/O     breaks binding on a tied dbm file
dbmopen Objects,I/O     create binding on a tied dbm file
defined Misc    test whether a value, variable, or function is defined
delete  HASH    deletes a value from a hash
die     I/O,Flow        raise an exception or bail out
do      Flow,Modules    turn a BLOCK into a TERM
dump    Misc,Flow       create an immediate core dump
each    HASH    retrieve the next key/value pair from a hash
endgrent        User    be done using group file
endhostent      User    be done using hosts file
endnetent       User    be done using networks file
endprotoent     Network be done using protocols file
endpwent        User    be done using passwd file
endservent      Network be done using services file
eof     I/O     test a filehandle for its end
eval    Flow,Misc       catch exceptions or compile and run code
exec    Process abandon this program to run another
exists  HASH    test whether a hash key is present
exit    Flow    terminate this program
exp     Math    raise I<e> to a power
fcntl   File    file control system call
fileno  I/O     return file descriptor from filehandle
flock   I/O     lock an entire file with an advisory lock
fork    Process create a new process just like this one
format  I/O     declare a picture format with use by the write() function
formline        Misc    internal function used for formats
getc    I/O     get     the next character from the filehandle
getgrent        User    get next group record 
getgrgid        User    get group record given group user ID
getgrnam        User    get group record given group name
gethostbyaddr   Network get host record given its address
gethostbyname   Network get host record given name
gethostent      Network get next hosts record 
getlogin        User    return who logged in at this tty
getnetbyaddr    Network get network record given its address
getnetbyname    Network get networks record given name
getnetent       Network get next networks record 
getpeername     Socket  find the other end of a socket connection
getpgrp Process get process group
getppid Process get parent process ID
getpriority     Process get current nice value
getprotobyname  Network get protocol record given name
getprotobynumber        Network get protocol record numeric protocol
getprotoent     Network get next protocols record
getpwent        User    get next passwd record
getpwnam        User    get passwd record given user login name
getpwuid        User    get passwd record given user ID
getservbyname   Network get services record given its name
getservbyport   Network get services record given numeric port
getservent      Network get next services record 
getsockname     Socket  retrieve the sockaddr for a given socket
getsockopt      Socket  get socket options on a given socket
glob    File            expand filenames using wildcards
gmtime  Time    convert UNIX time into record or string using Greenwich time
goto    Flow    create spaghetti code
grep    LIST    locate elements in a list test true against a given criterion
hex     Math,String     convert a string to a hexadecimal number
import  Modules,Namespace       patch a module's namespace into your own
index   String  find a substring within a string
int     Math    get the integer portion of a number
ioctl   File    system-dependent device control system call
join    LIST    join a list into a string using a separator
keys    HASH    retrieve list of indices from a hash
kill    Process send a signal to a process or process group
last    Flow    exit a block prematurely
lc      String  return lower-case version of a string
lcfirst String  return a string with just the next letter in lower case
length  String  return the number of bytes in a string
link    File    create a hard link in the filesytem
listen  Socket  register your socket as a server 
local   Misc,Namespace  create a temporary value for a global variable (dynamic scoping)
localtime       Time    convert UNIX time into record or string using local time
lock    Threads get a thread lock on a variable, subroutine, or method
log     Math    retrieve the natural logarithm for a number
lstat   File    stat a symbolic link
m//     Regexp  match a string with a regular expression pattern
map     LIST    apply a change to a list to get back a new list with the changes
mkdir   File    create a directory
msgctl  SysV    SysV IPC message control operations
msgget  SysV    get SysV IPC message queue
msgrcv  SysV    receive a SysV IPC message from a message queue
msgsnd  SysV    send a SysV IPC message to a message queue
my      Misc,Namespace  declare and assign a local variable (lexical scoping)
next    Flow    iterate a block prematurely
no      Modules unimport some module symbols or semantics at compile time
package Modules,Objects,Namespace       declare a separate global namespace
prototype       Flow,Misc       get the prototype (if any) of a subroutine
oct     String,Math     convert a string to an octal number
open    File    open a file, pipe, or descriptor
opendir File    open a directory
ord     String  find a character's numeric representation
our     Misc,Namespace  declare and assign a package variable (lexical scoping)
pack    Binary,String   convert a list into a binary representation
pipe    Process open a pair of connected filehandles
pop     ARRAY   remove the last element from an array and return it
pos     Regexp  find or set the offset for the last/next m//g search
print   I/O     output a list to a filehandle
printf  I/O     output a formatted list to a filehandle
push    ARRAY   append one or more elements to an array
q/STRING/       String  singly quote a string
qq/STRING/      String  doubly quote a string
quotemeta       Regexp  quote regular expression magic characters
qw/STRING/      LIST    quote a list of words
qx/STRING/      Process backquote quote a string
qr/STRING/      Regexp  Compile pattern 
rand    Math    retrieve the next pseudorandom number 
read    I/O,Binary      fixed-length buffered input from a filehandle
readdir I/O     get a directory from a directory handle
readline        I/O     fetch a record from a file
readlink        File    determine where a symbolic link is pointing
readpipe        Process execute a system command and collect standard output
recv    Socket  receive a message over a Socket
redo    Flow    start this loop iteration over again
ref     Objects find out the type of thing being referenced
rename  File    change a filename
require Modules load in external functions from a library at runtime
reset   Misc    clear all variables of a given name
return  Flow    get out of a function early
reverse String,LIST     flip a string or a list
rewinddir       I/O     reset directory handle
rindex  String  right-to-left substring search
rmdir   File    remove a directory
s///    Regexp  replace a pattern with a string
scalar  Misc    force a scalar context
seek    I/O     reposition file pointer for random-access I/O
seekdir I/O     reposition directory pointer 
select  I/O     reset default output or do I/O multiplexing
semctl  SysV    SysV semaphore control operations
semget  SysV    get set of SysV semaphores
semop   SysV    SysV semaphore operations
send    Socket  send a message over a socket
setgrent        User    prepare group file for use
sethostent      Network prepare hosts file for use
setnetent       Network prepare networks file for use
setpgrp Process set the process group of a process
setpriority     Process set a process's nice value
setprotoent     Network prepare protocols file for use
setpwent        User    prepare passwd file for use
setservent      Network prepare services file for use
setsockopt      Socket  set some socket options
shift   ARRAY   remove the first element of an array, and return it
shmctl  SysV    SysV shared memory operations
shmget  SysV    get SysV shared memory segment identifier
shmread SysV    read SysV shared memory 
shmwrite        SysV    write SysV shared memory 
shutdown        Socket  close down just half of a socket connection
sin     Math    return the sine of a number
sleep   Process block for some number of seconds
socket  Socket  create a socket
socketpair      Socket  create a pair of sockets
sort    LIST    sort a list of values 
splice  ARRAY   add or remove elements anywhere in an array
split   Regexp  split up a string using a regexp delimiter
sprintf String  formatted print into a string   
sqrt    Math    square root function
srand   Math    seed the random number generator
stat    File    get a file's status information
study   Regexp  optimize input data for repeated searches
sub     Flow    declare a subroutine, possibly anonymously
substr  String  get or alter a portion of a stirng
symlink File    create a symbolic link to a file
syscall I/O,Binary      execute an arbitrary system call
sysopen File    open a file, pipe, or descriptor
sysread I/O,Binary      fixed-length unbuffered input from a filehandle
sysseek I/O,Binary      position I/O pointer on handle used with sysread and syswrite
system  Process run a separate program 
syswrite        I/O,Binary      fixed-length unbuffered output to a filehandle
tell    I/O     get current seekpointer on a filehandle
telldir I/O     get current seekpointer on a directory handle
tie     Objects bind a variable to an object class 
tied    Objects get a reference to the object underlying a tied variable
time    Time    return number of seconds since 1970
times   Process,Time    return elapsed time for self and child processes
tr///   String  transliterate a string
truncate        I/O     shorten a file
uc      String  return upper-case version of a string
ucfirst String  return a string with just the next letter in upper case
umask   File    set file creation mode mask
undef   Misc    remove a variable or function definition
unlink  File    remove one link to a file
unpack  Binary,LIST     convert binary structure into normal perl variables
unshift ARRAY   prepend more elements to the beginning of a list
untie   Objects break a tie binding to a variable
use     Modules,Namespace       load a module and import its namespace
use     Objects load in a module at compile time
utime   File    set a file's last access and modify times
values  HASH    return a list of the values in a hash
vec     Binary  test or set particular bits in a string
wait    Process wait for any child process to die
waitpid Process wait for  a particular child process to die
wantarray       Misc,Flow       get void vs scalar vs list context of current subroutine call
warn    I/O     print debugging info
write   I/O     print a picture record
y///    String  transliterate a string
Revision:	1.1
Committed:	Thu Jun 30 14:27:14 2005 UTC (21 years, 3 months ago) by root
Branch:	MAIN
CVS Tags:	PERL-5-8-7, HEAD
Branch point for:	PERL
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	package Pod::Functions;
2			use strict;
3
4			=head1 NAME
5
6			Pod::Functions - Group Perl's functions a la perlfunc.pod
7
8			=head1 SYNOPSIS
9
10			use Pod::Functions;
11
12			my @misc_ops = @{ $Kinds{ 'Misc' } };
13			my $misc_dsc = $Type_Description{ 'Misc' };
14
15			or
16
17			perl /path/to/lib/Pod/Functions.pm
18
19			This will print a grouped list of Perl's functions, like the
20			L<perlfunc/"Perl Functions by Category"> section.
21
22			=head1 DESCRIPTION
23
24			It exports the following variables:
25
26			=over 4
27
28			=item %Kinds
29
30			This holds a hash-of-lists. Each list contains the functions in the catagory
31			the key denotes.
32
33			=item %Type
34
35			In this hash each key represents a function and the value is the catagory.
36			The catagory can be a comma separated list.
37
38			=item %Flavor
39
40			In this hash each key represents a function and the value is a short
41			description of that function.
42
43			=item %Type_Description
44
45			In this hash each key represents a catagory of functions and the value is
46			a short description of that catagory.
47
48			=item @Type_Order
49
50			This list of catagories is used to produce the same order as the
51			L<perlfunc/"Perl Functions by Category"> section.
52
53			=back
54
55			=head1 CHANGES
56
57			1.02 20020813 <abe@ztreet.demon.nl>
58			de-typo in the SYNOPSIS section (thanks Mike Castle for noticing)
59
60			1.01 20011229 <abe@ztreet.demon.nl>
61			fixed some bugs that slipped in after 5.6.1
62			added the pod
63			finished making it strict safe
64
65			1.00 ??
66			first numbered version
67
68			=cut
69
70			our $VERSION = '1.02';
71
72			require Exporter;
73
74			our @ISA = qw(Exporter);
75			our @EXPORT = qw(%Kinds %Type %Flavor %Type_Description @Type_Order);
76
77			our(%Kinds, %Type, %Flavor);
78
79			our %Type_Description = (
80			'ARRAY' => 'Functions for real @ARRAYs',
81			'Binary' => 'Functions for fixed length data or records',
82			'File' => 'Functions for filehandles, files, or directories',
83			'Flow' => 'Keywords related to control flow of your perl program',
84			'HASH' => 'Functions for real %HASHes',
85			'I/O' => 'Input and output functions',
86			'LIST' => 'Functions for list data',
87			'Math' => 'Numeric functions',
88			'Misc' => 'Miscellaneous functions',
89			'Modules' => 'Keywords related to perl modules',
90			'Network' => 'Fetching network info',
91			'Objects' => 'Keywords related to classes and object-orientedness',
92			'Process' => 'Functions for processes and process groups',
93			'Regexp' => 'Regular expressions and pattern matching',
94			'Socket' => 'Low-level socket functions',
95			'String' => 'Functions for SCALARs or strings',
96			'SysV' => 'System V interprocess communication functions',
97			'Time' => 'Time-related functions',
98			'User' => 'Fetching user and group info',
99			'Namespace' => 'Keywords altering or affecting scoping of identifiers',
100			);
101
102			our @Type_Order = qw{
103			String
104			Regexp
105			Math
106			ARRAY
107			LIST
108			HASH
109			I/O
110			Binary
111			File
112			Flow
113			Namespace
114			Misc
115			Process
116			Modules
117			Objects
118			Socket
119			SysV
120			User
121			Network
122			Time
123			};
124
125			while (<DATA>) {
126			chomp;
127			s/#.*//;
128			next unless $_;
129			my($name, $type, $text) = split " ", $_, 3;
130			$Type{$name} = $type;
131			$Flavor{$name} = $text;
132			for my $t ( split /[,\s]+/, $type ) {
133			push @{$Kinds{$t}}, $name;
134			}
135			}
136
137			close DATA;
138
139			my( $typedesc, $list );
140			unless (caller) {
141			foreach my $type ( @Type_Order ) {
142			$list = join(", ", sort @{$Kinds{$type}});
143			$typedesc = $Type_Description{$type} . ":";
144			write;
145			}
146			}
147
148			format =
149
150			^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
151			$typedesc
152			~~ ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
153			$typedesc
154			~~ ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
155			$list
156			.
157
158			1;
159
160			__DATA__
161			-X File a file test (-r, -x, etc)
162			abs Math absolute value function
163			accept Socket accept an incoming socket connect
164			alarm Process schedule a SIGALRM
165			atan2 Math arctangent of Y/X in the range -PI to PI
166			bind Socket binds an address to a socket
167			binmode I/O prepare binary files for I/O
168			bless Objects create an object
169			caller Flow,Namespace get context of the current subroutine call
170			chdir File change your current working directory
171			chmod File changes the permissions on a list of files
172			chomp String remove a trailing record separator from a string
173			chop String remove the last character from a string
174			chown File change the owership on a list of files
175			chr String get character this number represents
176			chroot File make directory new root for path lookups
177			close I/O close file (or pipe or socket) handle
178			closedir I/O close directory handle
179			connect Socket connect to a remote socket
180			continue Flow optional trailing block in a while or foreach
181			cos Math cosine function
182			crypt String one-way passwd-style encryption
183			dbmclose Objects,I/O breaks binding on a tied dbm file
184			dbmopen Objects,I/O create binding on a tied dbm file
185			defined Misc test whether a value, variable, or function is defined
186			delete HASH deletes a value from a hash
187			die I/O,Flow raise an exception or bail out
188			do Flow,Modules turn a BLOCK into a TERM
189			dump Misc,Flow create an immediate core dump
190			each HASH retrieve the next key/value pair from a hash
191			endgrent User be done using group file
192			endhostent User be done using hosts file
193			endnetent User be done using networks file
194			endprotoent Network be done using protocols file
195			endpwent User be done using passwd file
196			endservent Network be done using services file
197			eof I/O test a filehandle for its end
198			eval Flow,Misc catch exceptions or compile and run code
199			exec Process abandon this program to run another
200			exists HASH test whether a hash key is present
201			exit Flow terminate this program
202			exp Math raise I<e> to a power
203			fcntl File file control system call
204			fileno I/O return file descriptor from filehandle
205			flock I/O lock an entire file with an advisory lock
206			fork Process create a new process just like this one
207			format I/O declare a picture format with use by the write() function
208			formline Misc internal function used for formats
209			getc I/O get the next character from the filehandle
210			getgrent User get next group record
211			getgrgid User get group record given group user ID
212			getgrnam User get group record given group name
213			gethostbyaddr Network get host record given its address
214			gethostbyname Network get host record given name
215			gethostent Network get next hosts record
216			getlogin User return who logged in at this tty
217			getnetbyaddr Network get network record given its address
218			getnetbyname Network get networks record given name
219			getnetent Network get next networks record
220			getpeername Socket find the other end of a socket connection
221			getpgrp Process get process group
222			getppid Process get parent process ID
223			getpriority Process get current nice value
224			getprotobyname Network get protocol record given name
225			getprotobynumber Network get protocol record numeric protocol
226			getprotoent Network get next protocols record
227			getpwent User get next passwd record
228			getpwnam User get passwd record given user login name
229			getpwuid User get passwd record given user ID
230			getservbyname Network get services record given its name
231			getservbyport Network get services record given numeric port
232			getservent Network get next services record
233			getsockname Socket retrieve the sockaddr for a given socket
234			getsockopt Socket get socket options on a given socket
235			glob File expand filenames using wildcards
236			gmtime Time convert UNIX time into record or string using Greenwich time
237			goto Flow create spaghetti code
238			grep LIST locate elements in a list test true against a given criterion
239			hex Math,String convert a string to a hexadecimal number
240			import Modules,Namespace patch a module's namespace into your own
241			index String find a substring within a string
242			int Math get the integer portion of a number
243			ioctl File system-dependent device control system call
244			join LIST join a list into a string using a separator
245			keys HASH retrieve list of indices from a hash
246			kill Process send a signal to a process or process group
247			last Flow exit a block prematurely
248			lc String return lower-case version of a string
249			lcfirst String return a string with just the next letter in lower case
250			length String return the number of bytes in a string
251			link File create a hard link in the filesytem
252			listen Socket register your socket as a server
253			local Misc,Namespace create a temporary value for a global variable (dynamic scoping)
254			localtime Time convert UNIX time into record or string using local time
255			lock Threads get a thread lock on a variable, subroutine, or method
256			log Math retrieve the natural logarithm for a number
257			lstat File stat a symbolic link
258			m// Regexp match a string with a regular expression pattern
259			map LIST apply a change to a list to get back a new list with the changes
260			mkdir File create a directory
261			msgctl SysV SysV IPC message control operations
262			msgget SysV get SysV IPC message queue
263			msgrcv SysV receive a SysV IPC message from a message queue
264			msgsnd SysV send a SysV IPC message to a message queue
265			my Misc,Namespace declare and assign a local variable (lexical scoping)
266			next Flow iterate a block prematurely
267			no Modules unimport some module symbols or semantics at compile time
268			package Modules,Objects,Namespace declare a separate global namespace
269			prototype Flow,Misc get the prototype (if any) of a subroutine
270			oct String,Math convert a string to an octal number
271			open File open a file, pipe, or descriptor
272			opendir File open a directory
273			ord String find a character's numeric representation
274			our Misc,Namespace declare and assign a package variable (lexical scoping)
275			pack Binary,String convert a list into a binary representation
276			pipe Process open a pair of connected filehandles
277			pop ARRAY remove the last element from an array and return it
278			pos Regexp find or set the offset for the last/next m//g search
279			print I/O output a list to a filehandle
280			printf I/O output a formatted list to a filehandle
281			push ARRAY append one or more elements to an array
282			q/STRING/ String singly quote a string
283			qq/STRING/ String doubly quote a string
284			quotemeta Regexp quote regular expression magic characters
285			qw/STRING/ LIST quote a list of words
286			qx/STRING/ Process backquote quote a string
287			qr/STRING/ Regexp Compile pattern
288			rand Math retrieve the next pseudorandom number
289			read I/O,Binary fixed-length buffered input from a filehandle
290			readdir I/O get a directory from a directory handle
291			readline I/O fetch a record from a file
292			readlink File determine where a symbolic link is pointing
293			readpipe Process execute a system command and collect standard output
294			recv Socket receive a message over a Socket
295			redo Flow start this loop iteration over again
296			ref Objects find out the type of thing being referenced
297			rename File change a filename
298			require Modules load in external functions from a library at runtime
299			reset Misc clear all variables of a given name
300			return Flow get out of a function early
301			reverse String,LIST flip a string or a list
302			rewinddir I/O reset directory handle
303			rindex String right-to-left substring search
304			rmdir File remove a directory
305			s/// Regexp replace a pattern with a string
306			scalar Misc force a scalar context
307			seek I/O reposition file pointer for random-access I/O
308			seekdir I/O reposition directory pointer
309			select I/O reset default output or do I/O multiplexing
310			semctl SysV SysV semaphore control operations
311			semget SysV get set of SysV semaphores
312			semop SysV SysV semaphore operations
313			send Socket send a message over a socket
314			setgrent User prepare group file for use
315			sethostent Network prepare hosts file for use
316			setnetent Network prepare networks file for use
317			setpgrp Process set the process group of a process
318			setpriority Process set a process's nice value
319			setprotoent Network prepare protocols file for use
320			setpwent User prepare passwd file for use
321			setservent Network prepare services file for use
322			setsockopt Socket set some socket options
323			shift ARRAY remove the first element of an array, and return it
324			shmctl SysV SysV shared memory operations
325			shmget SysV get SysV shared memory segment identifier
326			shmread SysV read SysV shared memory
327			shmwrite SysV write SysV shared memory
328			shutdown Socket close down just half of a socket connection
329			sin Math return the sine of a number
330			sleep Process block for some number of seconds
331			socket Socket create a socket
332			socketpair Socket create a pair of sockets
333			sort LIST sort a list of values
334			splice ARRAY add or remove elements anywhere in an array
335			split Regexp split up a string using a regexp delimiter
336			sprintf String formatted print into a string
337			sqrt Math square root function
338			srand Math seed the random number generator
339			stat File get a file's status information
340			study Regexp optimize input data for repeated searches
341			sub Flow declare a subroutine, possibly anonymously
342			substr String get or alter a portion of a stirng
343			symlink File create a symbolic link to a file
344			syscall I/O,Binary execute an arbitrary system call
345			sysopen File open a file, pipe, or descriptor
346			sysread I/O,Binary fixed-length unbuffered input from a filehandle
347			sysseek I/O,Binary position I/O pointer on handle used with sysread and syswrite
348			system Process run a separate program
349			syswrite I/O,Binary fixed-length unbuffered output to a filehandle
350			tell I/O get current seekpointer on a filehandle
351			telldir I/O get current seekpointer on a directory handle
352			tie Objects bind a variable to an object class
353			tied Objects get a reference to the object underlying a tied variable
354			time Time return number of seconds since 1970
355			times Process,Time return elapsed time for self and child processes
356			tr/// String transliterate a string
357			truncate I/O shorten a file
358			uc String return upper-case version of a string
359			ucfirst String return a string with just the next letter in upper case
360			umask File set file creation mode mask
361			undef Misc remove a variable or function definition
362			unlink File remove one link to a file
363			unpack Binary,LIST convert binary structure into normal perl variables
364			unshift ARRAY prepend more elements to the beginning of a list
365			untie Objects break a tie binding to a variable
366			use Modules,Namespace load a module and import its namespace
367			use Objects load in a module at compile time
368			utime File set a file's last access and modify times
369			values HASH return a list of the values in a hash
370			vec Binary test or set particular bits in a string
371			wait Process wait for any child process to die
372			waitpid Process wait for a particular child process to die
373			wantarray Misc,Flow get void vs scalar vs list context of current subroutine call
374			warn I/O print debugging info
375			write I/O print a picture record
376			y/// String transliterate a string