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PERL may be run interactively from the command line. For example,
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will report the version of PERL in use.
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The PERL command
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% perl -e 'print "@INC\n";'
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prints the search path for included files.
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The command
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% perl -MLWP -e 'print "libwww-perl-$LWP::VERSION\n";'
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prints the installed version of LWP.
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The complex PERL command
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% perl -pi.bak -e 's/str1/str2/gi' `find . -name \*.html -print`
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performs a case insensitive, global search-and-replace on all files ending with "html" in the current directory and all its subdirectories.
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