[SOLVED] Adding new line to config file using bash script

Issue

is there a way to append a new line after a specific line in a config file using bash script?

For example, i want to insert a new line "Protocol 2" after "The default requires explicit activation of protocol 1" line using bash script. I would appreciate it greatly if any help is given. Thank you.

Solution

Try this:

sed -i /etc/ssh/sshd_config -e '/# The default requires explicit activation of protocol 1/a Protocol 2'

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Answered By - Florian Weimer