On 19/06/12 20:22, Tony Vroon wrote:
Have you considered the use of (unified!) diffs and the patch command?
No, I hadn't, good idea if it'll do what I need.
However, one thing I do want to achieve is that the file to be "inserted" is
basically a copy+paste of the required lines from a working crontab (the files
won't be created by me).
The background to this is I'm trying to write a script to automatically
install web-based apps onto Linux boxes. Whoever wrote the app will know how
to add entries to crontab as necessary, and will create a crontab file in the
project directory. My installer needs to see if that file is there, and insert
into crontab as necessary. If the install script gets re-run it needs to
remove the previous entries and replace them with the new crontab (in case
they've changed).
I'm not sure how to create a diff file that basically says "look for this
section, and if it's there remove it (whatever its contents), and then append
this one"
--
Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450
Registered in England (0456 0902) 21 Drakes Mews, Milton Keynes, MK8 0ER
_______________________________________________
Peterboro mailing list
Peterboro@mailman.lug.org.uk
https://mailman.lug.org.uk/mailman/listinfo/peterboro
