關於 shell exit code ，我們在網路上蒐集到這些相關的討論、資訊與評價

#11. shell 程序返回码退出码 - 51CTO博客

exit 命令用于退出当前shell，在shell脚本中可以终止当前脚本执行。 常用参数格式：exit n 退出。设置退出码为n。（Cause the shell to exit with a status ...

#12. Exit status - Wikipedia

For the shell's purposes, a command which exits with a zero exit status has succeeded. A nonzero exit status indicates failure.

#13. Bash Exit Code of Last Command - Linux Hint

Every UNIX/Linux command executed by the shell script or user leaves an exit status. It's an integer number that remains unchanged unless the next command ...

#14. Record exit codes of all shell commands as they are executed

Thanks to the numerous helpful comments, I have arrived at the following solutions to record exit codes of shell commands as they are ...

#15. Bash Exit Command and Exit Codes | Linuxize

Each shell command returns an exit code when it terminates, either successfully or unsuccessfully. By convention, an exit code of zero indicates ...

#16. 44.11 Set Exit Status of a Shell (Script) - AIT CSIM Program

To end a shell script and set its exit status, use the exit command. Give exit the exit status that your script should have. If it has no explicit status, it ...

#17. 7.4 Exit Codes :: Chapter 7 - How linux works - eTutorials.org

The exit code of the last command is held in the $? special variable, so you can check it out for yourself at your shell prompt:.

#18. How to Use Exit Codes in Shell Scripts - The Geek Search

Every command returns an exit status, also commonly referred to as return status or exit code. A successful command exits with an exit status of 0.

#19. Exit status in the Korn shell or POSIX shell - IBM

Errors detected by the shell, such as syntax errors, cause the shell to return a nonzero exit status. Otherwise, the shell returns the exit status of the ...

#20. Appendix C. Exit Codes With Special Meanings

2, misuse of shell builtins, according to Bash documentation, Seldom seen, usually defaults to exit code 1. 126, command invoked cannot execute ...

#21. Shell script returns 0 exit_status despite syntax error - Unix ...

Let me first explain why this happens. POSIX Shell Command Language spec says: The exit status of the if command shall be the exit status of ...

#22. Passing exit code to calling script - UNIX and Linux Forums

this perl script calls a shell script.. after the shell script ends its execution, i am using exit 0 to terminate the shell script successfully and exit 1 to ...

#23. Bash Exit Command and Exit Code - DesignLinux

When any shell command terminates, it returns an exit code, even successfully or unsuccessfully. If the exit code is zero that means command ...

#24. Exit a Bash Script: Exit 0 and Exit 1 Explained - Codefather

Where N is the Bash exit code (or exit status) used to exit the script during ... The exit command returns an exit code back to the shell.

#25. How to check the exit status of a command in a shell script

As a quick note, here's part of a Unix/Linux shell script that demonstrates some scripting syntax, including the if/then syntax, and how to ...

#26. Shell exit status code and its application | Develop Paper

The command running in the shell will use an integer value between 0 and 255 as the exit status code, which will inform the shell of the ...

#27. What are Bash Exit Codes in Linux - The Geek Diary

Each execution terminates with an exit code, whether successful or ... 2, Misuse of shell builtins, empty_function() {}, Missing keyword or ...

#28. bash how to get exit status - Mastering UNIX Shell

The answer is in this special shell variable "$?". In this variable is saved exit status of last command that ended in background.

#29. Understanding Exit Codes and Using them in Bash scripts

To check the exit code we can simply print the $? special variable in bash. This variable will print the exit code of the last run command.

#30. How to use exit code in bash shell script - nixCraft Linux/Unix ...

I need to check the exit code of command. Say /scripts/bin/app1 returned exit status 127. How do I use exit code in bash shell script?

#31. What is the meaning of exit 0, exit 1, and exit 2 in a bash script?

Here's one good reference for shell exit codes: Exit code 0 Success Exit code 1 General errors, Miscellaneous errors, such as "divide by ...

#32. Work the Shell - Understanding Exit Codes | Linux Journal

1: general errors · 2: misuse of shell builtins (pretty rare) · 126: cannot invoke requested command · 127: command not found error · 128: invalid ...

#33. Linux Shell Bash 带有特殊含义的退出码- lsgxeva - 博客园

退出时执行commands指定的命令。（ A trap on EXIT is executed before the shell terminates.） 退出码（exit status，或exit code）的约定：. 0 ...

#34. exit(-1)或者return(-1)shell得到的退出碼為什麼是255 | 程式前沿

2, Misuse of shell builtins (according to Bash documentation), empty_function() {}, Seldom seen, usually defaults to exit code 1.

#35. Command Job Fails With Exit Code 2

A command job that runs a shell script on UNIX fails with exit code 2. The error that is written to the std_err_file indicates that the script ...

#36. How Expect can capture the exit code from a remote command

cd /tmp $ echo $? 0 $ command exit with result code : 0. echo $? is a shell command that will print the exit status of the previous shell command.

#37. Standard Error & Exit Codes | An Illustrated Guide to Shell Magic

There are some problems with pipelines. One is that if you stream all the output of a command down a pipe to other commands, ...

#38. Bash Shell Exit Status Tutorial with Practical Examples

Shell Command Exit Status ... The return value of a command is its exit status, or 128 + N if the command is terminated by signal N. Exit status ...

#39. Shell Script Exit Code | Login Pages Finder

Bash Exit Code Of Last Command – Linux Hint · Exit Codes Shell Scripting Tutorial · Shell Scripting Exit Status Shell Scripting Return Codes · Bash Exit ...

#40. Using Exit Statuses and Return Codes in Your Scripts - Cloud ...

The special variable dollar sign question mark contains the return code of the previously executed command. In this shell script, the ls command is called with ...

#41. Exit Shell Script Based on Process Exit Code [duplicate]

I have a shell script that executes a number of commands. How do I make the shell script exit if any of the commands exit with a non-zero exit code?

#42. 網路農夫-- UNIX C Shell -- 3-8-2 exit [status value] 指令

3-8-2 exit [status value] 指令. 這個指令會終止C shell 的執行，並退出該C shell。如果你login shell 中執行，則功能便相當於logout。如果在subshell 中執行則回到 ...

#43. Exit codes - Linux Shell Scripting Essentials - Packt Subscription

Exit code is one of the ways to know whether a command is executed successfully or if some error has occurred. As per the POSIX (Portable Operating System ...

#44. Exit Status($?) variable in Linux - GeeksforGeeks

Exit Status ($?) variable in Linux ... “$?” is a variable that holds the return value of the last executed command. “echo $?” displays 0 if the ...

#45. Exit code 127 error status in Bash script - LinuxConfig.org

The 127 error code indicates “command not found”. This occurs when any given command within your Bash script or on Bash command line is not ...

#46. Appendix D. Exit Codes With Special Meanings - Linux ...

2, Misuse of shell builtins (according to Bash documentation), Seldom seen, usually defaults to exit code 1. 126, Command invoked cannot execute ...

#47. Managing exit codes in Run Command commands - AWS ...

Use Run Command to define how exit codes are handled in your scripts. ... you can include a shell conditional statement to exit the script if any command ...

#48. What is exit code 1 Linux? - OS Today

You can use value of exit status in the shell script to display an error message or run commands.

#49. Show Exit Code in your bash Prompt - Scripting OS X

You can always get the exit code of the previous command from the $? variable, but seeing it right there and in color, is more direct. While I ...

#50. How to get the exit status set in a shell script in Python - Pretag

For more info see bash shell man page here.,Every Linux or Unix command executed by the shell script or user, has an exit status.,For the bash ...

#51. Shell Commands and their Exit Codes | by Blackode

But, the shell holds the state of a command for every command execution. The state is nothing but the Exit Code. The Exit Code mainly represents ...

#52. What are Exit Codes in Linux? - Technology blogs

Exit Code, Meaning. 0, Successful termination. 1, General Errors like a typo. 2, Syntax Issue in the shell. 126, Command invoked cannot execute. It can be

#53. How CI Pipeline Scripts and Exit Codes Interact | Dojo Five

What is An Exit Code? An exit code, sometimes called a return code, is a number returned by a shell command or script.

#54. EXIT STATUS - Korn Shell: Unix and Linux Programming ...

Errors detected by the shell, such as syntax errors, cause the shell to return a non-zero exit status. Otherwise, the shell returns the exit status of the last ...

#55. return - stop the current inner function - fish shell

Description¶. return halts a currently running function. The exit status is set to STATUS if it is given. It is usually added inside of a conditional block ...

#56. Exit Codes - Master the Bash Shell - Educative.io

In this lesson, you will find out what an exit code is, how you can set one in a script and a function, some conventions around exit codes, ...

#57. Exit codes · Site Reliability Engineer HandBook

Every program you start terminates with an exit code and reports it to the ... in the source code of Bash (see code 255) 128 + N: the shell was terminated ...

#58. Return code not executing properly in shell script | Toolbox Tech

sftp is an interactive command, so exit codes are irrelevant. ssh exits with the exit status of the remote command or with 255 if an error occurred. scp exits ...

#59. 35.13. Test Exit Status with the if Statement

If you are going to write a shell script of any complexity at all, ... ways the command might exit, and thus the varying values its exit status may have, ...

#60. Shell exit codes - feature - HUGO

HI, there is no documentation about hugo exit codes. Want to use it in shell scripts. 0 for OK ?? other = error ??

#61. Errors and Signals and Traps (Oh My!) - Part 1

Bash shell scripting error and signal handling. ... It is also important that our scripts return a meaningful exit status when they finish.

#62. Return codes

Most shell commands issue return codes that show whether the command executed properly. By convention, if the value returned is 0 (zero), then the command ...

#63. Shell.ExitCode - Xojo Documentation

The exit code returned by the shell. Notes. It returns 0 if the Execute method was executed successfully.

#64. Determining the Completion Status of a SAS Job in UNIX ...

The exit status for the completion of a SAS job is returned in $STATUS for the C shell, and in $? for the Bourne and Korn shells.

#65. “Which command should I use to display the exit code of the ...

echo $? Add a Grepper Answer. Shell/Bash ...

#66. Thread: exit status code from shell step - Pentaho Community ...

exit status code from shell step. Hi, I want to run a command (sqlldr) using "Sheel" step from a job and then based on it's return (exit ) ...

#67. nonzero exit codes when trying to exit a WSL instance lately

I am curious how did you spawn that shell though? When I exit a shell in Windows Terminal it normally closes the terminal. Are you launching it ...

#68. Bash: Run an executable giving a good exit status - Server Fault

Give this a try: command || true. From man bash : The shell does not exit if the command that fails is part of the command list immediately following a ...

#69. Bash set -e to stop script on failure - Code Maven

Normally if one of the commands executed by a shell script fails it set an exit code different from 0, but the script will not stop.

#70. Linux-Shell語法(5)-常用命令 - IT人

用空格隔開每一項; 用反斜槓放在shell特定的字元前面（即轉義）; 對包含空格和其他特殊 ... 當讀到檔案結束符(ctrl+d)時， exit code 為1，否則為0。

#71. Oracle Shell Scripting - The Exit Status: The Unseen Result

The Exit Status: The Unseen Result. Whenever a command is run in UNIX or Linux it will complete with a status of either success or failure.

#72. a bash pipe command exit code rule - Super User

a bash pipe command exit code rule · command-line bash shell grep exit-code. I was writing a simple script that checks the output of a command ...

#73. Command /bin/sh failed with exit code 252 - Mobile - New ...

Hi all, Just building New Relic into my app and having added the shell script for the dSYM upload I get the following error when I try to run the device or ...

#74. Exit Codes - Buck Build Tool

These exit codes are Buck's binary protocol for interacting with other software such as shell scripts. Note that in the case of some fatal errors—such as ...

#75. Command Line Exit Codes - Phabricator

Explains the use of exit codes in Phabricator command line scripts. ... Programs which run commands can operate on exit codes, and shell constructs like ...

#76. Handling exit code returned by python in shell script | Newbedev

The exit code of last command is contained in $?. Use below pseudo code: python myPythonScript.py ret=$? if [ $ret -ne 0 ]; then #Handle failure #exit if ...

#77. How to pass return code of a mload to shell script - Teradata ...

Any command executed on shell will lead to $? to be filled with exit status of the last command. After you can test it and branch it, in your ...

#78. Why is my program terminating with exit code 3? - Microsoft ...

A customer was seeing their program crash with an exit code of 3 and couldn't figure out where it was coming from. They never use that exit code ...

#79. Linux Bash exit and Exit Codes - POFTUT

Linux bash shell provide simple but useful programming environment. We can write simple applications, scripts which will run commands, ...

#80. How to check the exit status code - Linux Commando

When a command finishes execution, it returns an exit code. The exit code is not displayed on the screen by default. To examine the exit code, you need to ...

#81. return

The return utility shall cause the shell to stop executing the current ... or to the exit status of the last command executed if n is not specified.

#82. Exit status - Everything curl

If you write a shell script or batch file that invokes curl, you can always check the return code to detect problems in the invoked command.

#83. Linux Shell学习笔记：exit退出状态代码_王伴农 - CSDN博客

Shell 中的特殊变量$?-查看上一条Shell命令的退出状态码（exit status） ... 被终止执行退出后，父进程可以通过调用wait或waitpid得到它的exit code。

#84. Secure Shell (SSH, SCP, and SFTP) Return Codes in UNIX

Error Codes. The purpose of an error code is to describe the error occurring in a program; it may display on the command line or in a log or ...

#85. Bourne Shell Selection

A non-zero indicates an error. The exit status of the last command executed is available in $?. $ cat bf1 who >/dev/null echo :$?: who | ...

#86. What is the purpose of using exit 1 in shell scripts? - Quora

In shell, defining the exit status is quite important. Since only because of an exit status you'd know if the command/script was successful or not.

#87. Shell Script Exit Codes - Ivanti Community

I have written a bash script to install an application on macOS. The installer has specific return codes for specific errors that it ...

#88. Make Exit Status Values

When Make exits it returns an exit status indicating the termination reason. The exit status can be tested by the command shell or, if you are doing a ...

#89. Resolve the error "The shell command failed with exit code 1 ...

The underlying shell (OS) then runs this task and sends the exit code back to the waiting Informatica process. Session/workflow > command task > sh -c <task>

#90. 各种shell的exit code - ITPub博客

exit code -退出代码.是指一个脚本/命令结束以后,运行这个脚本/命令的父进程得到的返回值. 在脚本中,如果有一句"exit xxx"(xxx是一个数字,0~255之间的 ...

#91. Windows: Get Exit Code (ErrorLevel) - CMD & PowerShell

Every command or application returns an exit status, also known as a return status or exit code. A successful command or application returns ...

#92. How To Set And Check Exit Status of Command in Linux

This post will guide you how to set exit status in bash shell script. How do I check exit status of a command from the command line in your ...

#93. A Bash‌ ‌Status‌ ‌of‌ Last‌ ‌Command‌| DiskInternals

Are you ready? Let's read! The exit code of the last command you run. For every Linux command you run on a shell, it must return an exit status. Usually, ...

#94. Shell Scripting Exit Status Shell Scripting Return codes - ARKIT

Shell script exit status can be verified using special variable “$?” contains the return code of previously executed command

#95. How to Ignore Failures in a Shell Step? - CloudBees Support

Issue I don't want a Shell script to abort on failure I want to run a ... you can control the execution of your script on error (exit code ...

#96. Problems with good scripts failing (exit code: 127... - Jamf Nation

"Value 127 is returned by /bin/sh when the given command is not found within your PATH system variable and it is not a built-in shell command.