$ perl -le'print "Hello, World!";' Hello, World! $ perl -le'eval q{print "Hello, World!";};' Hello, World! #### $ perl -le'print "3$ARGV[0]4";' + 3+4 $ perl -le'print eval "3$ARGV[0]4"' + 7 $ perl -le'print eval "3$ARGV[0]4"' '*' 12 #### $ perl -le'print $ARGV[0]' '`rm -i *`' `rm -i *` $ perl -le'print eval $ARGV[0]' '`rm -i *`' rm: remove regular file `demo.pl'? ^C