Recettes informatiques

Color diff

Posted by on 05 Fév 2021 in Programmation, Bash

Shell

#!/bin/sh
#
# author: Laurent Mazet
# title: color diff tool
 
# global variable
PROG=$(basename $0)
 
# help message
usage() {
        echo "$PROG [-h|--help] <file1> <file2>"
        exit $1
}
 
# argument check
[ $# -lt 1 ] && { echo "need arguments"; usage 1; }
[ "$1" = "-h" ] && usage 0
[ "$1" = "--help" ] && usage 0
[ -f "$1" ] || { echo "file '$1' not found"; usage 1; }
[ -f "$2" ] || { echo "file '$2' not found"; usage 1; }
 
# action
diff -u "$1" "$2" | view -
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