CODEWITHSUNDEEP
linuxunixsed
Ira
Ira

Reputation: 567

How to find a specific file recursively and delete the last line from all files found in linux?

I want to find a specific file e.g. foo.txt recursively and delete the last line from it if the line contains a specific word (e.g. bar). Basically combine -

find . -type f -iname "foo.txt"
sed '$d' foo.txt

dir1 -
      |-sub-dir1-
                 |-foo.txt
      |-sub-dir2-
                 |-foo.txt
      |-
      .
      .
      |-
      |-sub-dirn-
                 |-foo.txt

Delete last line from all foo.txt files under dir1 if the last line contains bar.

Original contents -

foo.txt
1
2
bar

After deletion -

foo.txt
1
2

Thanks.

Upvotes: 0

Views: 96

Answers (1)

Barmar
Barmar

Reputation: 781741

Use the -exec option to run the sed command. Add the /bar/ regular expression to check that the last line also matches that pattern.

find . -type f -iname "foo.txt" -exec sed -i '${/bar/d;}' {} +

Upvotes: 2

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