How to exit if a command failed? [duplicate]

How to exit if a command failed? [duplicate]

linux bash exit exitstatus

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How to check the first character in a string in Bash or UNIX shell?

string bash unix character exitstatus

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How to tell if any command in bash script failed (non-zero exit status)

bash sh exit-code exitstatus

bash

Bash exit status of shorthand increment notation

bash shorthand exitstatus

bash