Darac Marjal <mailinglist@darac.org.uk> writes: > Sadly, this can't be done in-place, so you'll either need to use mv to > replace /etc/conf.file with /etc/conf.file.new or repeat the loop (with > no substitution) to copy /etc/conf.file.new into /etc/conf.file. Maybe now with bash, but with perl it can be done in place quite handily. perl -i -pe 's/WORDS/REPLACEMENT/' my.conf