Unix & Linux: How to capture return code (not exit code)?

Unix & Linux: How to capture return code (not exit code)?

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Unix & Linux: How to return the exit code? Error: return: Reading: numeric argument required?
Unix & Linux: How to return the exit code? Error: return: Reading: numeric argument required?
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Unix & Linux: How to return the exit code? Error: return: Reading: numeric argument required?

Unix & Linux: How to return the exit code? Error: return: Reading: numeric argument required?
Unix & Linux: Can't determine why exit code is not being logged

Unix & Linux: Can't determine why exit code is not being logged
Unix & Linux: Shell script returns 126 exit code from crontab

Unix & Linux: Shell script returns 126 exit code from crontab
How to use exit codes

How to use exit codes
Unix & Linux: Exit code at the end of a bash script (2 Solutions!!)

Unix & Linux: Exit code at the end of a bash script (2 Solutions!!)
Unix & Linux: How to fix exit status 127? (3 Solutions!!)

Unix & Linux: How to fix exit status 127? (3 Solutions!!)
Return Last Command's Status Code In Bash

Return Last Command's Status Code In Bash
Unix & Linux: dpkg: new pre-installation script returned error exit status 1 (4 Solutions!!)

Unix & Linux: dpkg: new pre-installation script returned error exit status 1 (4 Solutions!!)
Unix & Linux: How to suppress exit code of finished background jobs? (2 Solutions!!)

Unix & Linux: How to suppress exit code of finished background jobs? (2 Solutions!!)
Unix & Linux: Systemd start script fails with exit code 127 (2 Solutions!!)

Unix & Linux: Systemd start script fails with exit code 127 (2 Solutions!!)
Unix & Linux: awk exit code if regular expression did not match (2 Solutions!!)

Unix & Linux: awk exit code if regular expression did not match (2 Solutions!!)
Unix & Linux: Testing multi-valued exit status (not just success orfailure) (2 Solutions!!)

Unix & Linux: Testing multi-valued exit status (not just success orfailure) (2 Solutions!!)
bash how to get exit status

bash how to get exit status
How to handle bash exit codes in Linux

How to handle bash exit codes in Linux
Unix & Linux: printenv exits with error code 1 for non-existent env name (2 Solutions!!)

Unix & Linux: printenv exits with error code 1 for non-existent env name (2 Solutions!!)
Unix & Linux: chmod + silent mode + how force exit code 0 in spite of error (3 Solutions!!)

Unix & Linux: chmod + silent mode + how force exit code 0 in spite of error (3 Solutions!!)
Unix & Linux: How to fix httpd error code AH00526?

Unix & Linux: How to fix httpd error code AH00526?
Unix & Linux: rsync error: exit code 23 ( No such file or directory (2) )

Unix & Linux: rsync error: exit code 23 ( No such file or directory (2) )