#!/bin/sh
# Canonical source: http://blackskyresearch.net/try.sh.txt

# 3-finger-claw
yell() { echo "$0: $*" >&2; }
die() { yell "$*"; exit 111; }
try() { "$@" || die "cannot $*"; }

# using it
try cd /some/place
try tar xzvfp /another/place/stuff.tbz

true