Bash Check Return Code
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Bash Check Return Code
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You can use and to make these things one liner For example in the following ls l echo ok echo ok will run only if the command before ls l returned 0 On the other hand in the following ls l echo not ok echo not ok will run only if the command before returned non zero To return exit codes in Bash scripts, use the command exit followed by the status code you intend to return based on your flow of action in the script. For instance, using the exit 0 command will return the exit code 0.
How To Print The Last Command Return Code In Bash
Bash Check Return CodeCode: #!/bin/bash. # Main folders. INPUT="input" OUTPUT="output" # Functions. function checkFolderExist(){ if [ -d $1 ] then. # 0 = true. # Change to 0, only for tests. return 1. else. mkdir $1. result=$? if [ result==0 ] then. # 0 = true. return 0. else. # 1 = false. return 1. fi. } CHECKINPUT=$(checkFolderExist $INPUT) echo $? If you have to check the exit code explicitly it is better to use the arithmetic operator this way run some command 0 printf s n Command exited with non zero exit 1 Or use a case statement run some command ec
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