Provides aliases for the Perl built-in special variables. Everything else about the variables and their use remains the same. Be aware, though, that using the English module significantly slows down a program for regular expressions.
Some of the Perl variables match some awk built-in variables. For those cases, you'll find two English names: a short version (which is the awk name) and a longer version. For example, you can use either $ERRNO (the awk name) or $OS_ERROR to refer to the Perl variable $!.
Here is the list of variables and 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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