UNIX for Dummies Questions & Answers

#!/bin/bash
#
# -- given a search pattern search both text
# -- and compressed files and return matches

# check command-line for search value
if [ $# -ne 2 ]
then
    echo "[!] Usage: ${0##*/} <search pattern> <position>"
    exit 1
fi

# store search value
val=$1

# store position
pos=$2

# get current working directory and switch to it
cwd=$(pwd)
cd $cwd

# loop through both text and compressed files
# and search for the given value
shopt -s nullglob
for f in *
do
    if [[ $f =~ "gz" ]]
    then
        result=$(zcat $f | awk -F',' -v s=$val -v p=$pos '$p ~ s {print s}')
        if [ "$result" == "$val" ]
        then
            echo "[*] Found pattern [ $val ] in file [ $f ]."
        fi
    else
        result=$(awk -F',' -v s=$val -v p=$pos '$p ~ s {print s}' $f)
        if [ "$result" == "$val" ]
        then
            echo "[*] Found pattern [ $val ] in file [ $f ]."
        fi
    fi
done

# done
exit 0

findVal.sh
[!] Usage: findVal.sh <search pattern> <position>