If you'd play with perl command-line options (such as -p, -l and -i) this line might have all you need (you could use -a and -F/:/ for splitting too)

s[:/bin/bash$][:/dev/null$] if /^www:/

Note: You have to check how it works under shared access.

In reply to Re: passwd + command line options by fglock
in thread Questions with sysopen (code) by deprecated

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