Am 07. Sep, 2006 schwätzte Nathan England so:

>
> I have about 50 users in /home
> I want to create a cron job for each user that will run sa-learn on a spam
> file. I have it properly setup for my user, but I want to copy that to each
> other user, then use sed to replace my user name in each file with the proper
> user name.
>
> I did this
>
> for user in '/bin/ls /home'; do

are those backticks?

> cp /var/spool/cron/nengland /var/spool/cron/$user
> sed -i 's/nengland/$user/' $user

sed -i 's/nengland/'$user'/' $user

Single quotes inhibit variable expansion, so you need to get outside the
quotes :).

Just thought I'd point it out because you can't always used double-quote
as Kurt suggested.

You can also leave the quotes off in some circumstances.

http://www.grymoire.com/Unix/Sed.html - Great sed resource.

ciao,

der.hans

> chown $user $user
> done
>
> While it worked, instead of replacing nengland with the username, it literally
> replaced it with '$user'
>
> What is the proper way to do this?
>
> Nathan
>

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