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"shopt -s inherit_errexit" is important
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| #!/usr/bin/env bash | |
| set -o errexit | |
| set -o nounset | |
| f() { | |
| echo -n hello | |
| INVALID_COMMAND | |
| echo -n world | |
| } | |
| bar=$(f) | |
| echo "bar is $bar" | |
| # It will print | |
| # ./a.bash:行8: INVALID_COMMAND：未找到命令 | |
| # bar is helloworld |
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| #!/usr/bin/env bash | |
| set -o errexit | |
| set -o nounset | |
| shopt -s inherit_errexit | |
| f() { | |
| echo -n hello | |
| INVALID_COMMAND | |
| echo -n world | |
| } | |
| bar=$(f) | |
| echo "bar is $bar" | |
| # It will print | |
| # ./b.bash:行9: INVALID_COMMAND：未找到命令 |
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you inverted the results . correct it