Your blob of code aside, don't underestimate the one-liner. 

perl -i -pe 's/^sshd_enable=".*?"/sshd_enable="YES"/' /etc/rc.conf

[download]

Additionally: If you really want you can even get fancy: 

perl -i -pe 's/^sshd_enable="(.*?)"/qq{sshd_enable="} . ( $1 eq "YES" 
+? "NO" : "YES" ) . qq{"}/e' /etc/rc.conf

[download]

In reply to Re: Updating a conf file non-destructively by Fletch
in thread Updating a conf file non-destructively by rlb3

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