text_combined: john w krahn jwkrahnshawca remy guo wrote hi hello txt log file want delete 9th character line using regexthanks would easier use substr substr line 8 1 john perl isnt toolbox small machine shop specialorder certain sorts tools low cost short order larry wall unsubscribe email beginnersunsubscribeperlorg additional commands email beginnershelpperlorg httplearnperlorg tue 05 aug 2008 200103 0700 question text operation using regex