A few command-line tricks for Perl:
- Filter based on regex (like grep -E)
cat file.txt | perl -n -e ‘print if /regex.*matched/’ - Replace based on regex
cat file.txt | perl -n -e ‘s/regex.*matched/replacement/gi’ - Replace based on regex inside file (will change file)
perl -pi -e ‘s/regex.*matched/replacement/gi’ *.txt - Replace based on regex inside file (will change file) and make a backup of original file with .bak extension.
perl -pi.bak -e ‘s/regex.*matched/replacement/gi’ *.txt