Difference between revisions of "Perl built-in functions"
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− | {{ | + | {{sidebar|__TOC__}}[[Computing]]: [[Programming]]: [[Perl]]: [[Perl built-in functions|built-in functions]]{{seed}} |
==Alphabetical== | ==Alphabetical== | ||
===A=== | ===A=== |
Revision as of 12:58, 24 February 2006
Computing: Programming: Perl: built-in functions
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Alphabetical
A
- abs(arg) - returns absolute value of arg
- accept()
- alarm($seconds) - sends an alarm signal after $seconds seconds
- atan2($y,$x) - returns the arctangent of $y/$x
B
- bind()
- binmode(filehandle) - sets filehandle to be treated as binary
- bless()
C
- caller()
- chdir()
- chmod()
- chomp()
- chop()
- chown()
- chr()
- chroot()
- close()
- closedir()
- connect()
- cos()
- crypt()
D
- dbmclose()
- dbmopen()
- defined()
- delete()
- die()
- do subroutine
- dump()
E
- each()
- endgrent
- endhostent
- endnetent
- endprotoent
- endpwent
- endservent
- eof()
- eval()
- exec()
- exists($assoc($key)) - returns TRUE if $key exists within the hash $assoc. Doesn't work with dbm hashes.
- exit()
- exp()
F
- fcntl()
- fileno()
- flock()
- fork
- format
- formline()
G
- getc()
- getgrent
- getgrgid()
- getgrnam()
- gethostbyaddr()
- gethostbyname()
- gethostent
- getlogin
- getnetbyaddr()
- getnetbyname()
- getnetent
- getpeername()
- getpgrp()
- getppid
- getpriority()
- getprotobyname()
- getprotobynumber()
- getprotoent
- getpwent
- getpwnam()
- getpwuid()
- getserverbyname()
- getserverbyport()
- getservent
- getsockname()
- getsockopt()
- glob()
- gmtime()
- goto()
- grep()
H
- hex()
I
- index()
- int()
- ioctl()
J
- join()
K
- keys()
- kill()
L
- last()
- lc(string) - returns string in lowercase
- lcfirst(string) - returns string with first character lowercased
- length(string) - returns length (number of characters in) string
- link(oldfile,newfile) - creates newfile as a link to oldfile
- listen(socket,queuesize) - waits for incoming events on a socket
- local(variable list) - makes all variables in variable list local to the current subroutine
- localtime(number) - converts the binary time stored in number to a 9-element list and localizes it to the machine's timezone
- log(number) - returns the natural logarithm (i.e. loge) of number
- lstat(fileHandle) - returns file statistics for the file opened with file handle fileHandle (does not de-reference symbolic links)
M
- m/pattern/gimosx - performs pattern-matching; other characters may be used as delimiters instead of "/". See Perl regex
- map(expr,list) - returns an array containing the output of expr(list item) for each item in list
- mkdir(name,mode) - creates a directory named name (can be relative or absolute filespec), with the file attributes in mode. See mkdir for related information.
- msgctl
- msgget
- msgrcv
- msgsnd
- my(variable list) - makes all variables in variable list local to the current {block}
N
- next
- no
O
- oct(expr) - converts string from octal to decimal (query: is expr a string? BCD? integer?)
- open(fileHandle,name) - opens a file named name and associates it with fileHandle
- opendir(dirHandle,name) - opens a directory named name and associates it with dirHandle
- ord(string) - returns the ASCII code of the first character in string, as an integer