1. use shellcheck 2. use shfmt (to format your shell script) 3. set -euo pipefail (much shorter) my slight complain about bash is that it disallows sp

1. use shellcheck 2. use shfmt (to format your shell script) 3. set -euo pipefail (much shorter) my slight complain about bash is that it disallows space around =, X=100 is OK, X = 100 is not, sometimes I just make mistakes like that.