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7.2.13 English - Use English or awk Names for Punctuation Variables

use English;
...
if ($ERRNO =~ /denied/) { ... }

This module provides aliases for the built-in "punctuation" variables. Variables with side effects that get triggered merely by accessing them (like $0 ) will still have the same effects under the aliases.

For those variables that have an awk (1) version, both long and short English alternatives are provided. For example, the $/ variable can be referred to either as $RS or as $INPUT_RECORD_SEPARATOR if you are using the English module.

Here is the list of variables along with their English alternatives:

Perl English Perl English
@_ @ARG $? $CHILD_ERROR
$_ $ARG $! $OS_ERROR
$& $MATCH $! $ERRNO
$ ` $PREMATCH $@ $EVAL_ERROR
$ ' $POSTMATCH $$ $PROCESS_ID
$+ $LAST_PAREN_MATCH $$ $PID
$. $INPUT_LINE_NUMBER $< $REAL_USER_ID
$. $NR $< $UID
$/ $INPUT_RECORD_SEPARATOR $> $EFFECTIVE_USER_ID
$/ $RS $> $EUID
$| $OUTPUT_AUTOFLUSH $( $REAL_GROUP_ID
$, $OUTPUT_FIELD_SEPARATOR $( $GID
$, $OFS $) $EFFECTIVE_GROUP_ID
$\ $OUTPUT_RECORD_SEPARATOR $) $EGID
$\ $ORS $0 $PROGRAM_NAME
$" $LIST_SEPARATOR $] $PERL_VERSION
$; $SUBSCRIPT_SEPARATOR $^A $ACCUMULATOR
$; $SUBSEP $^D $DEBUGGING
$% $FORMAT_PAGE_NUMBER $^F $SYSTEM_FD_MAX
$= $FORMAT_LINES_PER_PAGE $^I $INPLACE_EDIT
$- $FORMAT_LINES_LEFT $^P $PERLDB
$~ $FORMAT_NAME $^T $BASETIME
$^ $FORMAT_TOP_NAME $^W $WARNING
$: $FORMAT_LINE_BREAK_CHARACTERS $^X $EXECUTABLE_NAME
$^L $FORMAT_LINEFEED $^O $OSNAME


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7.2.12 DynaLoader - Automatic Dynamic Loading of Perl Modules Book Index 7.2.14 Env - Import Environment Variables











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