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.TH Perl "BuiltIn Virables"
.SH Separators
.PD 0
.br
.IP ""
.SS "$/ $RS $INPUT_RECORD_SEPARATOR"
óÉÍ×ÏÌ - ÐÒÉÚÎÁË ËÏÎÃÁ ×ÈÏÄÎÏÊ ÓÔÒÏËÉ (Def: '\en')
.SS "$, $OFS $OUTPUT_FIELD_SEPARATOR"
óÉÍ×ÏÌ, ÄÏÂÁ×ÌÑÅÍÙÊ ÏÐÅÒÁÔÏÒÏÍ print ÐÏÓÌÅ ËÁÖÄÏÇÏ ÜÌÅÍÅÎÔÁ ÉÚ ÓÐÉÓËÁ
ÐÁÒÁÍÅÔÒÏ×:
.br
.ce 1
.I	print a,b --> a"$,"b
.SS "$"" $LIST_SEPARATOR"
áÎÁÌÏÇÉÞÅÎ "$,", ÎÏ ÅÓÌÉ ÜÌÅÍÅÎÔÙ ×ÚÑÔÙ × ÓËÏÂËÉ
.br
.ce 1
.I	print "a,b" --> a"$""b 
.SS "$\e $ORS $OUTPUT_RECORD_SEPARATOR"
óÉÍ×ÏÌ, ÄÏÂÁ×ÌÑÅÍÙÊ print ÐÏÓÌÅ ×Ù×ÏÄÁ ×ÓÅÈ ÐÁÒÁÍÅÔÒÏ× (print a; -> a"$")
.SS "$; $SUBSEP $SUBSCRIPT_SEPARATOR"
óÏÄÅÒÖÉÔ ÓÉÍ×ÏÌ-ÒÁÚÄÅÌÉÔÅÌØ ÄÌÑ ÜÍÕÌÑÃÉÉ ÍÎÏÇÏÍÅÒÎÙÈ ÈÜÛÅÊ (Def: \e034)
.SS $: $FORMAT_LINE_BREAK_CHARACTERS 
óÉÍ×ÏÌÙ ÐÅÒÅÎÏÓÁ ÓÔÒÏËÉ ÄÌÑ ÍÎÏÇÏÓÔÒÏÞÎÙÈ ÐÏÌÅÊ. ÷ ÓÔÒÏËÅ ÆÏÒÍÁÔÁ 
ÔÁËÉÅ ÐÏÌÑ ÎÁÞÉÎÁÀÔÓÑ ÓÉÍ×ÏÌÏÍ '^'. (Def: \en-) 
.sp 1
.SH RegExp related
.IP ""
.SS $& $MATCH 
îÁÊÄÅÎÎÁÑ ÐÏÄÓÔÒÏËÁ × ÐÏÓÌÅÄÎÅÍ ÐÏÉÓËÅ ÐÏ ÛÁÂÌÏÎÕ 
.SS $`
ðÏÄÓÔÒÏËÁ, ÐÒÅÄÛÅÓÔ×ÕÀÝÁÑ ÎÁÊÄÅÎÎÏÊ ÐÏÄÓÔÒÏËÅ. 
.SS $' $POSTMATCH 
ðÏÄÓÔÒÏËÁ, ÐÏÓÌÅÄÕÀÝÁÑ ÚÁ ÎÁÊÄÅÎÎÏÊ ÐÏÄÓÔÒÏËÏÊ. 
.br
.I ðÒÉÍÅÒ: 
.RS 8
    $var="abc";
    $var=~s/b/Q/;
    $&=b, $`=a, $'=c
.RE
.SS $<num>
óÏÄÅÒÖÉÔ ÎÁÊÄÅÎÎÕÀ ÐÏÄÓÔÒÏËÕ × regexp ÐÏÉÓËÅ, ËÏÇÄÁ ÛÁÂÌÏÎ ÓÏÄÅÒÖÉÔ
ÍÅÔÁÓÉÍ×ÏÌÙ × ËÒÕÇÌÙÈ ÓËÏÂËÁÈ. ãÉÆÒÁ × ÄÁÎÎÏÍ ÓÌÕÞÁÅ, ÜÔÏ ÎÏÍÅÒ ÓËÏÂÏË. 
ðÅÒ×ÁÑ ÐÏÄÓÔÒÏËÁ ÉÍÅÅÔ ÎÏÍÅÒ 1. 
.SS $+ $LAST_PAREN_MATCH 
ðÏÓÌÅÄÎÑÑ ÐÏÄÓÔÒÏËÁ ÎÁÊÄÅÎÎÁÑ × regexp ÐÏÉÓËÅ, ËÏÇÄÁ ÛÁÂÌÏÎ ÓÏÄÅÒÖÉÔ
ÍÅÔÁÓÉÍ×ÏÌÙ × ËÒÕÇÌÙÈ ÓËÏÂËÁÈ.
.br
.I ðÒÉÍÅÒ:
.RS 8
    $var="abcde"
    $var=~s/([bB]c)([a-z])/
    $1=bc, $2=d, $+=d
.RE
.br
.sp 1
.SH Default Arguments
.IP ""
.SS "$_ $ARG"
÷ ÜÔÕ ÐÅÒÅÍÅÎÎÕÀ ÐÏ ÕÍÏÌÞÁÎÉÀ ÐÒÏÉÓÈÏÄÉÔ ××ÏÄ, ÐÒÉÓ×ÁÉ×ÁÎÉÅ, × ÎÅÅ
ÓËÌÁÄÙ×ÁÀÔÓÑ ÒÅÚÕÌØÔÁÔÙ ÐÏÉÓËÁ ÐÏ ÚÁÄÁÎÎÏÍÕ ÏÂÒÁÚÃÕ. ôÏ ÅÓÔØ ÅÓÌÉ × 
ËÁÞÅÓÔ×Å ÁÒÇÕÍÅÎÔÁ ÎÅ ÕËÁÚÁÎÁ ÎÉËÁËÁÑ ÐÅÒÅÍÅÎÎÁÑ, ÔÏ ÉÓÐÏÌØÚÕÅÔÓÑ 
ÉÍÅÎÎÏ ÜÔÁ. 
.SS @ARGV 
óÏÄÅÒÖÉÔ ÍÁÓÓÉ× ÁÒÇÕÍÅÎÔÏ× ËÏÍÁÎÄÎÏÊ ÓÔÒÏËÉ, ËÏÔÏÒÙÅ ÂÙÌÉ ÐÅÒÅÄÁÎÙ
ÐÒÏÇÒÁÍÍÅ. 
.SS @_
óÏÄÅÒÖÉÔ ÍÁÓÓÉ× ÁÒÇÕÍÅÎÔÏ×, ËÏÔÏÒÙÅ ÂÙÌÉ ÐÅÒÅÄÁÎÙ ÆÕÎËÃÉÉ. ÷ ÔÅÌÅ
ÆÕÎËÃÉÉ ×ÓÅ ÏÐÅÒÁÃÉÉ ÐÏ ÕÍÏÌÞÁÎÉÀ ÐÒÏÉÚ×ÏÄÑÔØÓÑ ÎÁÄ ÜÔÏÊ ÐÅÒÅÍÅÎÎÏÊ.
.sp 1
.SH I/O Variables
.IP ""
.SS $ARGV 
éÍÑ ÔÅËÕÝÅÇÏ ÆÁÊÌÁ, ÞÉÔÁÅÍÏÇÏ ÏÐÅÒÁÔÏÒÏÍ '<>'. 
.SS $. $NR $INPUT_LINE_NUMBER
üÔÁ ÐÅÒÅÍÅÎÎÁÑ ÓÏÄÅÒÖÉÔ ÎÏÍÅÒ ÓÔÒÏËÉ, ËÏÔÏÒÁÑ ÂÙÌÁ ÐÏÞÉÔÁÎÁ ÐÏÓÌÅÄÎÅÊ 
ÉÚ ÆÁÊÌÁ, ËÏÔÏÒÙÊ ÂÙÌ ÐÒÏÞÉÔÁÎ ÐÏÓÌÅÄÎÉÍ. úÁËÒÙÔÉÅ ÆÁÊÌÁ ×ÙÚÙ×ÁÅÔ
ÏÞÉÓÔËÕ ÚÎÁÞÅÎÉÑ ÜÔÏÊ ÐÅÒÅÍÅÎÎÏÊ. 
.SS $~ $FORMAT_NAME
éÍÑ ÆÏÒÍÁÔÁ ÔÅËÕÝÅÇÏ ×Ù×ÏÄÁ (Def: STDOUT)
.SS $# $OFMT
æÏÒÍÁÔ ÐÏ ÕÍÏÌÞÁÎÉÀ ÄÌÑ ×Ù×ÏÄÁ ÞÉÓÅÌ, ÓÏ×ÐÁÄÁÅÔ Ó "C" printf (Def: %.20g)
.SS $^A $ACCUMULATOR 
ôÅËÕÝÅÅ ÚÎÁÞÅÎÉÅ ÁËËÕÍÕÌÑÔÏÒÁ ÆÕÎËÃÉÉ write() ÄÌÑ format().
( íÏÖÎÏ Õ×ÉÄÅÔØ ÔÏÌØËÏ ÐÒÉ ÉÓÐÏÌØÚÏ×ÁÎÉÉ ÆÕÎËÃÉÉ formline(), Ô.Ë. write() 
ÏÞÉÝÁÅÔ ÅÅ ÐÏÓÌÅ ËÁÖÄÏÇÏ ×Ù×ÏÄÁ )
.sp 1
.SH System Enviroment
.IP ""
.SS $$ $PID $PROCESS_ID 
îÏÍÅÒ ÔÅËÕÝÅÇÏ ÐÒÏÃÅÓÓÁ. 
.SS $< $UID $REAL_USER_ID 
òÅÁÌØÎÙÊ UID ÔÅËÕÝÅÇÏ ÐÒÏÃÅÓÓÁ. 
.SS $> $EUID $EFFECTIVE_USER_ID 
üÆÆÅËÔÉ×ÎÙÊ UID ÔÅËÕÝÅÇÏ ÐÒÏÃÅÓÓÁ. 
.SS $( $GID $REAL_GROUP_ID 
òÅÁÌØÎÙÊ GID ÔÅËÕÝÅÇÏ ÐÒÏÃÅÓÓÁ. 
.SS $) $EGID $EFFECTIVE_GROUP_ID 
üÆÆÅËÔÉ×ÎÙÊ GID ÔÅËÕÝÅÇÏ ÐÒÏÃÅÓÓÁ. 
.SS $] $PERL_VERSION 
óÔÒÏËÁ - ÓÏÏÂÝÅÎÉÅ ×ÅÒÓÉÉ Perl. ÷ ÞÉÓÌÏ×ÏÍ ËÏÎÔÅËÓÔÅ ÜÔÏ ÎÏÍÅÒ ×ÅÒÓÉÉ 
ÐÌÀÓ ÎÏÍÅÒ ÍÏÄÉÆÉËÁÃÉÉ / 1000. 
.SS $^T $BASETIME 
÷ÒÅÍÑ × ÓÅËÕÎÄÁÈ Ó ÎÁÞÁÌÁ 1970 ÇÏÄÁ ÄÏ ÓÔÁÒÔÁ ÔÅËÕÝÅÊ ÐÒÏÇÒÁÍÍÙ. 
.SS $^X $EXECUTABLE_NAME 
ëÏÍÁÎÄÁ ÚÁÐÕÓËÁ Perl
.SS $0 $PROGRAM_NAME
óÏÄÅÒÖÉÔ ÉÍÑ ÆÁÊÌÁ, × ËÏÔÏÒÏÍ ÎÁÈÏÄÉÔÓÑ ÉÓÐÏÌÎÑÅÍÁÑ ÐÒÏÇÒÁÍÍÁ. 
.SS @INC 
óÐÉÓÏË ÄÉÒÅËÔÏÒÉÊ ÄÉÓËÁ, ËÏÔÏÒÙÅ ÐÒÏÓÍÁÔÒÉ×ÁÅÔ Perl ÄÌÑ ×ÙÐÏÌÎÅÎÉÑ 
ËÏÍÁÎÄ do, require ÉÌÉ use. 
.SS %INC 
üÔÏÔ ÈÅÛ ÓÏÄÅÒÖÉÔ ÉÍÅÎÁ ÄÉÒÅËÔÏÒÉÊ ÄÌÑ ÉÍÅÎ ÉÓÐÏÌØÚÏ×ÁÎÎÙÈ ÆÁÊÌÏ× 
ËÏÍÁÎÄÁÍÉ do ÉÌÉ require. ëÌÀÞ - ÉÍÑ ÆÁÊÌÁ, Á ÚÎÁÞÅÎÉÅ - ÄÉÒÅËÔÏÒÉÑ. 
.SS %ENV
óÏÄÅÒÖÉÔ ÚÎÁÞÅÎÉÑ ÐÅÒÅÍÅÎÎÙÈ ÏËÒÕÖÅÎÉÑ. éÚÍÅÎÅÎÉÅ ÜÔÉÈ 
ÚÎÁÞÅÎÉÊ ×ÙÚÙ×ÁÅÔ ÉÚÍÅÎÅÎÉÅ ÏËÒÕÖÅÎÉÑ ÄÌÑ ÐÒÏÃÅÓÓÏ× ÐÏÔÏÍËÏ×. 
.SS %SIG
óÏÄÅÒÖÉÔ ÉÍÅÎÁ ÐÏÄÐÒÏÇÒÁÍÍ ÄÌÑ ÔÁËÉÈ ÓÉÓÔÅÍÎÙÈ ÓÉÇÎÁÌÏ× ËÁË INT,
QUIT, PIPE, ... úÎÁÞÅÎÉÅ 
.I 'DEFAULT' 
- ÄÌÑ ÓÉÓÔÅÍÎÏÊ ÏÂÒÁÂÏÔËÉ. 
.I 'IGNORE'
- ÉÇÎÏÒÉÒÏ×ÁÔØ ÄÁÎÎÙÊ ÓÉÇÎÁÌ. 
.sp 1
.SH Errors
.IP ""
.SS $? $CHILD_ERROR 
	äÁÎÎÁÑ ÐÅÒÅÍÅÎÎÁÑ ÓÏÄÅÒÖÉÔ ÓÔÁÔÕÓ ÚÁ×ÅÒÛÅÎÉÑ ÔÁËÉÈ ÐÒÏÃÅÓÓÏ× ËÁË: 
	ÚÁËÒÙÔÉÅ pipe, ÚÁ×ÅÒÛÅÎÉÅ ÆÕÎËÃÉÊ system(), wait() É .... 
.SS $! $ERRNO $OS_ERROR 
	÷ ÞÉÓÌÏ×ÏÍ ËÏÎÔÅËÓÔÅ ×ÏÚ×ÒÁÝÁÅÔ ËÏÄ ÏÛÉÂËÉ errno. ÷ ÓÔÒÏËÏ×ÏÍ - ÓÔÒÏËÕ
	ÓÏÏÂÝÅÎÉÑ Ï ÏÛÉÂËÅ. íÏÖÎÏ ÐÒÉÎÕÄÉÔÅÌØÎÏ ÐÒÉÓ×ÏÉÔØ ÜÔÏÊ ÐÅÒÅÍÅÎÎÏÊ ËÏÄ 
	ÏÛÉÂËÉ, ÞÔÏ ÂÙ ÐÏÌÕÞÉÔØ ÓÉÓÔÅÍÎÏÅ ÓÏÏÂÝÅÎÉÅ ÄÌÑ ÄÁÎÎÏÇÏ ËÏÄÁ ÉÌÉ 
	ÕÓÔÁÎÏ×ÉÔØ ËÏÄ ÚÁ×ÅÒÛÅÎÉÑ ÄÌÑ ÆÕÎËÃÉÉ die(). 
.SS $@ $EVAL_ERROR 
	óÏÏÂÝÅÎÉÅ ÏÂ ÏÛÉÂËÅ ÐÏÓÌÅÄÎÅÊ ËÏÍÁÎÄÙ eval(). 
.sp 1
.SH Debugging
.IP ""
.SS $^D $DEBUGGING 
ôÅËÕÝÅÅ ÚÎÁÞÅÎÉÅ ËÌÀÞÁ ÏÔÌÁÄËÉ '-D'. 
.SS $^P $PERLDB 
÷ÎÕÔÒÅÎÎÉÊ ÆÌÁÇ ÏÔÌÁÄËÉ. ðÒÉÍÅÎÑÅÔÓÑ ÄÌÑ ÔÏÇÏ, ÞÔÏÂÙ ÏÔÌÁÄÞÉË ÎÅ 
ÏÔÓÌÅÖÉ×ÁÌ ÓÁÍÏÇÏ ÓÅÂÑ. 
.SS $^F $SYSTEM_FD_MAX 
îÏÍÅÒ ÍÁËÓÉÍÁÌØÎÏÇÏ ÓÉÓÔÅÍÎÏÇÏ ÏÐÉÓÁÔÅÌÑ ÆÁÊÌÏ× ( Def: 2 )
.SS $^I $INPLACE_EDIT 
ôÅËÕÝÅÅ ÚÎÁÞÅÎÉÅ inplace-edit ×ÏÚÍÏÖÎÏÓÔÉ. ( äÌÑ ÏÔËÌÀÞÅÎÉÑ - undef )
.SS $^W $WARNING 
úÎÁÞÅÎÉÅ ÆÌÁÇÁ '-w'. true - ÅÓÌÉ ×ËÌÀÞÅÎÏ É false - ×ÙËÌÀÞÅÎÏ. 
.SS $| $OUTPUT_AUTOFLUSH 
0 - nop (Default)
1 - Buffers write down after each output operation
.SS $[ 
îÏÍÅÒ ÐÅÒ×ÏÇÏ ÜÌÅÍÅÎÔÁ ÍÁÓÓÉ×Á ÉÌÉ ÓÉÍ×ÏÌÁ ÓÔÒÏËÉ.  (Def: 0)
.sp 1
.SH Page Variables (???)
.IP ""
.SS $% $FORMAT_PAGE_NUMBER 
óÏÄÅÒÖÉÔ ÎÏÍÅÒ ÔÅËÕÝÅÊ ×Ù×ÏÄÉÍÏÊ ÓÔÒÁÎÉÃÙ.
æÏÒÍÁÔ ÐÏ ÕÍÏÌÞÁÎÉÀ ÄÌÑ ×Ù×ÏÄÁ ÎÏÍÅÒÏ× ÓÔÒÁÎÉÃ.
.SS $= $FORMAT_LINES_PER_PAGE	
	óÏÄÅÒÖÉÔ ÄÌÉÎÕ ÔÅËÕÝÅÊ ÓÔÒÁÎÉÃÙ ( Def: 60 )
.SS $- $FORMAT_LINES_LEFT 
ëÏÌÉÞÅÓÔ×Ï ÏÓÔÁ×ÛÉÈÓÑ ÓÔÒÏË ÎÁ ÓÔÒÁÎÉÃÅ ( îÁÐÒÉÍÅÒ ËÏÌÉÞÅÓÔ×Ï ÅÝÅ ÎÅ 
ÎÁÐÅÞÁÔÁÎÎÙÈ ÓÔÒÏË ÄÌÑ ÐÅÞÁÔÎÏÇÏ ËÁÎÁÌÁ ×Ù×ÏÄÁ )
.SS $^ $FORMAT_TOP_NAME
óÏÄÅÒÖÉÔ ÉÍÑ ÔÅËÕÝÅÇÏ ÆÏÒÍÁÔÁ ÚÁÇÏÌÏ×ËÁ ÓÔÒÁÎÉÃÙ. (Def: $~_TOP)
.SS $^L $FORMAT_FORMFEED 
óÉÍ×ÏÌ ÐÅÒÅ×ÏÄÁ ÆÏÒÍÁÔÁ (ÓÍÅÎÙ ÌÉÓÔÁ). (Def: \ef)