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From: | Paul Eggert |
Subject: | [bug-diffutils] bug#16618: How to show the diff command when there is a difference when comparing two files? |
Date: | Sat, 29 Mar 2014 22:22:40 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 |
I'm wondering if I just compare two files, it is possible to print the diff command if there is a difference between the two files?
Not in diff itself, but it's easy to do from a shell script. E.g., command="diff a b" $command >output || { echo "$command" cat output }
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