| | |
| $! | Status from most recent system call (including I/O) |
| $“ | List separator for array interpolation |
| $# | Output number format \[deprecated: use printf() instead\] |
| $$ | Process ID |
| $% | Page number of the current output page |
| $& | Most recent regex match string |
| $’ | String following most recent regex match |
| $( | Real group ID of the current process |
| $) | Effective group ID of the current process |
| $* | Regex multiline matching flag \[removed: use /m instead\] |
| $, | Output field separator for print() and say() |
| $- | Number of lines remaining in current output page |
| $. | Line number of last input line |
| $/ | Input record separator (end-of-line marker on inputs) |
| $0 | Program name |
| $1 | First capture group from most recent regex match |
| $2 | Second capture group from most recent regex match |
| $3 | Third capture group from most recent regex match |
| $4 | Fourth capture group from most recent regex match |
| $5 | Fifth capture group from most recent regex match |
| $6 | Sixth capture group from most recent regex match |
| $7 | Seventh capture group from most recent regex match |
| $8 | Eighth capture group from most recent regex match |
| $9 | Ninth capture group from most recent regex match |
| $+ | Final capture group of most recent regex match |
| $: | Break characters for format() lines |
| $; | Hash subscript separator for key concatenation |
| $< | Real uid of the current process |
| $= | Page length of selected output channel |
| $> | Effective uid of the current process |
| $? | Status from most recent system call (including I/O) |
| $@ | Current propagating exception |
| $ARGV | Name of file being read by readline() or \<\> |
| $[ | Array index origin [deprecated] |
| $\ | Output record separator (appended to every print()) |
| $] | Perl interpreter version [deprecated: use $^V] |
| $^ | Name of top-of-page format for selected output channel |
| $^A | Accumulator for format() lines |
| $^C | Is the program still compiling? |
| $^D | Debugging flags |
| $^E | O/S specific error information |
| $^F | Maximum system file descriptor |
| $^H | Internal compile-time lexical hints |
| $^I | In-place editing value |
| $^L | Form-feed sequence for format() pages |
| $^M | Emergency memory pool |
| $^N | Most recent capture group (within regex) |
| $^O | Operating system name |
| $^P | Internal debugging flags |
| $^R | Result of last successful code block (within regex) |
| $^S | Current eval() state |
| $^T | Program start time |
| $^V | Perl interpreter version |
| $^W | Global warning flags |
| $^X | Perl interpreter invocation name |
| $_ | Topic variable: default argument for matches and many builtins |
| $` | String preceding most recent regex match |
| ${^CHILD_ERROR_NATIVE} | Native status from most recent system call |
| ${^ENCODING} | Encode object for source conversion to Unicode |
| ${^GLOBAL_PHASE} | Current interpreter phase |
| ${^MATCH} | Most recent regex match string (under /p) |
| ${^OPEN} | PerlIO I/O layers |
| ${^POSTMATCH} | String following most recent regex match (under /p) |
| ${^PREMATCH} | String preceding most recent regex match (under /p) |
| ${^RE_DEBUG_FLAGS} | Regex debugging flags |
| ${^RE_TRIE_MAXBUF} | Cache limit on regex optimizations |
| ${^TAINT} | Taint mode |
| ${^UNICODE} | Unicode settings |
| ${^UTF8CACHE} | Internal UTF-8 offset caching controls |
| ${^UTF8LOCALE} | UTF-8 locale |
| ${^WARNING_BITS} | Lexical warning flags |
| ${^WIN32_SLOPPY_STAT} | Use non-opening stat() under Windows |
| $| | Autoflush status of selected output filehandle |
| $~ | Name of format for selected output channel |
| %! | Status of all possible errors from most recent system call |
| %+ | Named captures of most recent regex match (as strings) |
| %- | Named captures of most recent regex match (as arrays of strings) |
| %ENV | The current shell environment |
| %INC | Filepaths of loaded modules |
| %SIG | Signal handlers |
| %^H | Lexical hints hash |
| @+ | Offsets of ends of capture groups of most recent regex match |
| @- | Offsets of starts of capture groups of most recent regex match |
| @ARGV | Command line arguments |
| @F | Fields of the current input line (under autosplit mode) |
| @INC | Search path for loading modules |
| @\_ | Subroutine arguments |
