use strict;
my $str = 'Illeszkedjen:
Alapesetek:
cat ezmeg.az | grep "azta" | sort -n > ez.txt
cat ezmeg.az | grep "az ta" | sort -n > ez.txt
head -n 1 -r text.txt > head.txt
head -n 1 text.txt
head text.txt | tail
ls
Extrém esetek:
cat ezmeg.az |sort -n > ez.txt
cat ezmeg.az |sort -n | sort -n | sort -n> ez.txt
cat ezmeg.az |grep "azta" | sort -n > ez.txt
cat ezmeg.az -n --help | grep "azta" | sort -n -h > ez.txt
cat ezmeg.az | azta.exe | sort -n > ez.txt
cat ezmeg.az | grep "azta" | sort -n
cat ezmeg.az | grep "azta" | sort -n > ez.txt
cat ezmeg.az | grep "azta" | sort -n>ez.txt
"my program.exe" --help > help.txt
head -n 1 text.txt > "head file.txt"
Ne illeszkedjen:
head -n 1 text.txt > head.txt -x
head -n 1 text.txt > head.txt | tail
';
my $regex = qr/(\"[^\"]+\"|[^\|\>\<\:\s\"]+)([^\|\<\>\n\r]*)(\||\>.*)?/p;
my $subst = '\\1';
my $result = $str =~ s/$regex/$subst/rg;
print "The result of the substitution is' $result\n";
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Perl, please visit: http://perldoc.perl.org/perlre.html