関連ワード:  bash get the return code of a command    bash check the return code of a command    bash get the exit code of a command    bash get the return value of a command    bash check the exit code of a command    bash get return code of command substitution    bash check return value of a command    bash get exit status of a command    bash get return code of last command    bash get return code of first command in pipe  
結果 : bash get the return code of a command