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I started using these recently: set -o nounset set -o pipefail set -o errexit set -o xtrace I added them to all my scripts, and I also added all except err

by jafaku 12y ago

I started using these recently: set -o nounset set -o pipefail set -o errexit set -o xtrace I added them to all my scripts, and I also added all except errexit to ~/.bashrc The first one would save you from unset variables.

vlisivka 12y ago
You might be interested in bash-modules library, which is written with these options in mind.