Exit status 128 is the response received when an out-of-range exit code is used in programming. From my experience, exit status 128 is not possible to produce. I have tried multiple actions for an example, and I can't make it happen. However, I can produce an exit status 128-adjacent...
Exit Codes With Special Meanings Table E-1. Reserved Exit Codes Exit Code NumberMeaningExampleComments 1 Catchall for general errors let &qu
exit(EXIT_FAILURE); } } 编译并运行上例可以得到被强转后的状态码, 我们使用WIFEXITED判断等待的子进程是否执行成功, 然后对执行成功子进程使用WEXITSTATUS获取其退出状态. 对程序来说, 最终的退出状态就是主进程的退出状态. > gcc ecitcode.c;./a.out;echo "Parent exit status: $?" Child exit status: ...
Exit status 128 is the response received when an out-of-range exit code is used in programming. From my experience, exit status 128 is not possible to produce. I have tried multiple actions for an example, and I can't make it happen. However, I can produce an exit status 128-adjacent...
255\* - Exit status out of range Suppression of error output In some cases, you may want to suppress an exit status, probably because the command is being executed within another script, and you don't want to get any other error code besides "0". ...
A zero exit code is returned. . filename [arguments] source filename [arguments] Read and execute commands from filename in the cur rent shell environment and return the exit status of the last command executed from filename. If filename...
BASH Exit Status BASH Error Codes & their Meaning Linux OS Error Numbers, Error Codes and Meaning Unix and Linux OS shows error code and error name at time time of failures which may not be clear The table below provides a quick reference to error numbers, error name and their meaning to...
Exit CodeDescription 1 Catch all general errors 2 if built-in shell functions are misused 126 the invoked command cannot be executed 127 The invoked command is not found 128 invalid arguments passed 130 script is terminated by using Ctrl+C keyboard keys 255* Out of range exit statusAuthor...
read name if [[ -z $name ]] then echo "No name entered" >&2 exit 1 ## Set a failed return code fi 使用else 关键字,如果<condition list>失败,可以执行一组不同的命令,如清单 3-2 所示。请注意,在数值表达式中,变量不需要前导$。 清单3-2 。提示输入一个数字,并检查它是否不大于 10 pri...
[me@linux ~]$trap'echo "ERR trap from ${FUNCNAME:-MAIN} context."'ERR[me@linux ~]$falseERRtrapfrom MAIN context.[me@linux ~]$ fn(){false;};fn;echo"fn exit code is$?"ERRtrapfrom MAIN context.fnexitcode is1[me@linux ~]$ fn(){false;true;};fn;echo"fn exit code is$?"fnex...