Folks,
I have a text file which contains multiple lines with one string per line :
str1
str2
str3
etc..
I would like to read every line of this file and then search for those strings inside multiple files located in a different directory.
I am not quite sure how to proceed.
Thanks very much for your help.
awk 'NR==FNR{a[$0];next} { for (word in a) if ($0 ~ word) print FILENAME, $0 }' fileOfWords /wherever/dir/*
for wrd in $(cut -d, -f1 < testfile.txt); do grep $wrd dir/files* ; done
--file OptionAccording to grep(1):
-f FILE, --file=FILE
Obtain patterns from FILE, one per line. The empty file
contains zero patterns, and therefore matches nothing. (-f is
specified by POSIX.)
The -H and -n flags will print the filename and line number of each match. So, assuming you store your patterns in /tmp/foo and want to search all files in /tmp/bar, you could use something like:
# Find regular files with GNU find and grep them all using a pattern
# file.
find /etc -type f -exec grep -Hnf /tmp/foo {} +
while read -r str
do
echo "$str"
grep "$str" /path/to/other/files
done < inputfile
echo.