The log of an application in my job is archived in a file, 1 file per day. I was requested to extract the activity of one client from these logs for the whole August, i.e., from 31 compressed files.
I placed all compressed log files into a folder called /database and I created a file zgrep_all.sh to search and extract the log lines of my client. (If your *.gz files are located somewhere else then pay attention to line 11 of tje script and modify it properly)
| #!/bin/bash
# author: tomeu.mir # filename: zgrep_all.sh # desc : search string in all *gz files and spools the output to a file # usage : . zgrep_all.sh <search string> <output filename> # search_string=$1 output_file=$2 for f in database/*.gz do now=$(date +”%Y/%m/%d %T”) echo “[$now] Processing $f file with search string $search_string and output file $output_file” zgrep -i “$search_string” $f >> $output_file done now=$(date +”%Y/%m/%d %T”) echo “[$now] done.” |
Finally I executed the following:
$ . zgrep_all.sh MYCLIENTNAME output.log
tomeuwork 