$ perl --help

Usage: perl [switches] [--] [programfile] [arguments]
  -0[octal]       specify record separator (\0, if no argument)
  -a              autosplit mode with -n or -p (splits $_ into @F)
  -c              check syntax only (runs BEGIN and END blocks)
  -d[:debugger]   run scripts under debugger
  -D[number/list] set debugging flags (argument is a bit mask or flags)
  -e 'command'    one line of script. Several -e's allowed. Omit [programfile].  -F/pattern/     split() pattern for autosplit (-a). The //'s are optional.
  -i[extension]   edit <> files in place (make backup if extension supplied)
  -Idirectory     specify @INC/#include directory (may be used more than once)
  -l[octal]       enable line ending processing, specifies line terminator
  -[mM][-]module.. executes `use/no module...' before executing your script.
  -n              assume 'while (<>) { ... }' loop around your script
  -p              assume loop like -n but print line also like sed
  -P              run script through C preprocessor before compilation
  -s              enable some switch parsing for switches after script name
  -S              look for the script using PATH environment variable
  -T              turn on tainting checks
  -u              dump core after parsing script
  -U              allow unsafe operations
  -v              print version number, patchlevel plus VERY IMPORTANT perl info
  -V[:variable]   print perl configuration information
  -w              TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.  -x[directory]   strip off text before #!perl line and perhaps cd to directory  
Complete documentation for Perl, including FAQ lists, should be found on
this system using `man perl' or `perldoc perl'.  If you have access to the
Internet, point your browser at http://www.perl.com/, the Perl Home Page.