Another option is to use theset -ecommand at the top of your script - it will make the script exit if any program / command returns a non true value.另一个选择是在脚本顶部使用set -e命令-如果任何程序/命令返回非真值,它将使脚本退出。 #5楼 To
shell,python,perl（面向过程） 面向对象：shell，
You can use the exit nn command in a script to provide the shell with an exit status of nn (nn must be an integer in the range 0 - 255). The exit status is the exit status of the last command executed in the script if it terminated with an exit without arguments (before exiting)...
echo 'Must supply a parameter, exiting.' >&2 exit 1 ;; *) echo 'Unknown error, exiting.' >&2 exit $status esac
The most common logic errors in a shell script include: Incorrect use of a test operator in a Conditional Statement like using -z instead of -n in a if condition Incorrect use of an Arithmetic operator like multiplying instead of diving a number Incorrect condition to exit from a Bash Loop...
If the error is unrecoverable and you want to exit the script, choose this. This will give you the same effect as set -e, exiting at the error.echo Many long and complex actions false echo Many more long and complex actionsNote it exited after false, and the final echo statement never...
3.0.0-alpha: Windows: bash script fails with "syntax error: unexpected end of file" #815 New issue Closed as not plannedDescription cknitt opened on Jun 20, 2024 Another 3.0.0-alpha issue, I hope this one makes more sense than my previous one 🙈.So once correctly configured, setup-...
注:linux中有一个经典名言【一切皆文件】,/dev/null可以认为是一个特殊的空文件,更形象点,可以理解为科幻片中的黑洞,任何信息重向定输出到它后,便有去无回,当然黑洞里也没有信息能出来。 综合来讲,上面的意思就是利用<将黑洞做为demo.txt的标准输入,黑洞里没任何内容,任何文件里的内容被它吞噬了,自然也没就...
Content-Security-Policy-Report-Only: object-src 'none';base-uri 'self';script-src 'nonce-uaNnEHfzLsxxxxzGq-KXSA' 'strict-dynamic' 'report-sample' 'unsafe-eval' 'unsafe-inline' https: http:;report-uri https://csp.withgoogle.com/csp/gws/other-hp < Accept-CH: Sec-CH-Prefers-Color-Sche...
According to the above table, exit codes1 - 2, 126 - 165, and 255[1]have special meanings, and should therefore be avoided for user-specified exit parameters. Ending a script withexit 127would certainly cause confusion when troubleshooting (is the error code a"command not found" or a user...