CODEWITHSUNDEEP
bashcompression
EverythingRightPlace
EverythingRightPlace

Reputation: 1197

Find compressed files and output line

I want to output a specific line of several compressed files. Due to my research I think I have to extract the file and afterwards grep my strings. E.g. gunzip -c just outputs to STDOUT where I can further process.

I tried:

find path/to/files -name archive.gz | xargs gunzip -c | awk 'NR==100{print}'

which just outputs one string (the one from the second file). Without the xargs I am getting the error: gzip: stdin: not in gzip format

If there actually is an option for grep, sed, awk, perl, or any other standard bash tool, I would be pleased to get informed.

Upvotes: 1

Views: 122

Answers (1)

devnull
devnull

Reputation: 123508

You need the -exec option in order to issue a shell command:

find path/to/files -name archive.gz -exec sh -c "gzip -dc {} | awk 'NR==100'" \;

This would execute the command for every output generated by the find command.

Upvotes: 2

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