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linuxshelldirectorygrepgzip

find string inside a gzipped file in a folder

My current problem is that I have around 10 folders, which contain gzipped files (around on an average 5 each). This makes it 50 files to open and look at.

Is there a simpler method to find out if a gzipped file inside a folder has a particular pattern or not?

zcat ABC/myzippedfile1.txt.gz | grep "pattern match"
zcat ABC/myzippedfile2.txt.gz | grep "pattern match"

Instead of writing a script, can I do the same in a single line, for all the folders and sub folders?

for f in `ls *.gz`; do echo $f; zcat $f | grep <pattern>; done;
Solution

  • zgrep will look in gzipped files, has a -R recursive option, and a -H show me the filename option:

    zgrep -R --include=*.gz -H "pattern match" .

    OS specific commands as not all arguments work across the board:

    Mac 10.5+: zgrep -R --include=\*.gz -H "pattern match" .

    Ubuntu 16+: zgrep -i -H "pattern match" *.gz