#!/bin/sh # Usage: # get-mode entry-name /path/to/modeenv # # get-mode will look for entry-name in modeenv files and return 0 if # found, 1 if not found. It will print the value to stdout. set -eu if [ "$#" -gt 2 ]; then echo "Too many arguments" 1>&2 exit 1 fi if [ "$#" -lt 1 ]; then echo "Expected a name as argument" 1>&2 exit 1 fi name="${1}" modeenv="${2:-/var/lib/snapd/modeenv}" while read -r line; do case "${line}" in "${name}"=*) echo "${line#*=}" exit 0 ;; *) ;; esac done <"${modeenv}" exit 1