Better Bash Scripting in 15 Minutes

The tips and tricks below originally appeared as one of Google's "Testing on the Toilet" (TOTT) episodes. This is a revised and augmented version. Safer Scripting I start every bash script with the following prolog: #!/bin/bash set -o nounset set -o errexit This will take care of two very common errors: Referencing undefined variables (which default to "") Ignoring failing commands The two setting

[kasumani]

Better Bash Scripting in 15 Minutes Note that some Linux commands have options which as a side-effect suppress some failures, e.g.“mkdir -p” and “rm -f”. Also note, that the “errexit” mode, while a valuable first line of defense, does not catch all failures, i.e. Tags: feedly, ifttt, rec

[PaulYamamoto]

短いリファレンスだけど、素晴らしい内容。とりあえず今日からバッククォート->$()に変えよう。