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by gods
on Aug 20, 1999 at 01:18 UTC ( #155=document: print w/ replies, xml ) Need Help??

Perl Functions by Category/ Alphabetical Listing of Perl Functions

Here are Perl's functions (including things that look like functions, like some keywords and named operators) arranged by category. Some functions appear in more than one place.

Functions for SCALARs or strings
chomp, chop, chr, crypt, hex, index, lc, lcfirst, length, oct, ord, pack, q/STRING/, qq/STRING/, reverse, rindex, sprintf, substr, tr///, uc, ucfirst, y///

Regular expressions and pattern matching
m//, pos, quotemeta, s///, split, study, qr//

Numeric functions
abs, atan2, cos, exp, hex, int, log, oct, rand, sin, sqrt, srand

Functions for real @ARRAYs
pop, push, shift, splice, unshift

Functions for list data
grep, join, map, qw/STRING/, reverse, sort, unpack

Functions for real %HASHes
delete, each, exists, keys, values

Input and output functions
binmode, close, closedir, dbmclose, dbmopen, die, eof, fileno, flock, format, getc, print, printf, read, readdir, rewinddir, seek, seekdir, select, syscall(), sysread, sysseek, syswrite, tell, telldir, truncate, warn, write

Functions for fixed length data or records
pack, read, syscall(), sysread, syswrite, unpack, vec

Functions for filehandles, files, or directories
-X, chdir, chmod, chown, chroot, fcntl, glob, ioctl, link, lstat, mkdir, open, opendir, readlink, rename, rmdir, stat, symlink, umask, unlink, utime

Keywords related to the control flow of your perl program
caller, continue, die, do, dump, eval, exit, goto, last, next, redo, return, sub, wantarray

Keywords related to scoping
caller, import, local, my, package, use

Miscellaneous functions
defined, dump, eval, formline, local, my, reset, scalar, undef, wantarray

Functions for processes and process groups
alarm, exec, fork, getpgrp, getppid, getpriority, kill, pipe, qx/STRING/, setpgrp, setpriority, sleep, system, times, wait(), waitpid()

Keywords related to perl modules
do, import, no, package, require, use

Keywords related to classes and object-orientedness
bless, dbmclose, dbmopen, package, ref, tie, tied, untie, use

Low-level socket functions
accept, bind, connect, getpeername, getsockname, getsockopt, listen, recv, send, setsockopt, shutdown, socket, socketpair

System V interprocess communication functions
msgctl, msgget, msgrcv, msgsnd, semctl, semget, semop, shmctl, shmget, shmread, shmwrite

Fetching user and group info
endgrent, endhostent, endnetent, endpwent, getgrent, getgrgid, getgrnam, getlogin, getpwent, getpwnam, getpwuid, setgrent, setpwent

Fetching network info
endprotoent, endservent, gethostbyaddr, gethostbyname, gethostent, getnetbyaddr, getnetbyname, getnetent, getprotobyname, getprotobynumber, getprotoent, getservbyname, getservbyport, getservent, sethostent, setnetent, setprotoent, setservent

Time-related functions
gmtime, localtime, time, times

Functions new in perl5
abs, bless, chomp, chr, exists, formline, glob, import, lc, lcfirst, map, my, no, prototype, qx, qw, readline, readpipe, ref, sub*, sysopen, tie, tied, uc, ucfirst, untie, use
* sub was a keyword in perl4, but in perl5 it is an operator, which can be used in expressions.

Functions obsoleted in perl5 dbmclose, dbmopen
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