【perl】 The Perl 5 language interpreter【Perl】

Parse and execute a Perl script:

perl script.pl

Check syntax errors on a Perl script:

perl -c script.pl

Parse and execute a perl statement:

perl -e perl_statement

Import module before execution of a perl statement:

perl -Mmodule -e perl_statement

Run a Perl script in debug mode, using perldebug:

perl -d script.pl

Loo[p] over all lines of a file, editing them [i]n-place using a find/replace [e]xpression:

perl -p -i -e 's/find/replace/g' filename

Run a find/replace expression on a file, saving the original file with a given extension:

perl -p -i'.old' -e 's/find/replace/g' filename

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