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grep using input file as pattern to search other file
Sometimes we need to use another file which contains a multiple line that we want to use as input pattern
example:
You have
a.txt
a
b
c
d
e
And you want to search
a
, c
, e
.This case you can create
input.txt
a
c
e
and use this command
grep -f -F input.txt a.txt
If the input txt is a list of regex you can remove the
-F
option. -F, --fixed-strings
Interpret PATTERNS as fixed strings, not regular expressions.
Last modified 10mo ago