2017年3月14日 · What do exit 1, exit 0 and exit 2 mean, and why do we use them? A successfully executed code should exit with code 0. Other values indicate an error. See for instance Exit Codes With Special Meanings. A bash script is like a movie theater, there are different exists. The exit statements mark the location of the exits for the bash interpreter.

2010年10月18日 · When you are running some program on Linux environment, you might notice that it gives some error number. For example, “Error no is : 17”, which doesn’t really say much. You really need to know what error number 17 means. This article shows all available error numbers along with it descriptions.

2018年10月24日 · An argument (file) that could not be stat (stat filename) because it doesn't exists, would generate an error code of 2. In short, for GNU ls : A command like: ls NONE_existent_file # will result in exit 2

It is exit status of ls. See man for ls: Exit status: 0 if OK, 1 if minor problems (e.g., cannot access subdirectory), 2 if serious trouble (e.g., cannot access command-line argument). I guess the reason is that you have lots of *conf files in /etc and no *conf files in /usr. In fact ls -ld /usr/*conf; would have had the same effect.

2009年7月9日 · Several answers define exit status 2 as "Misuse of bash builtins". This applies only when bash (or a bash script) exits with status 2. Consider it a special case of incorrect usage error.

2022年10月12日 · Retrieving exit codes and knowing their meanings is important for a Linux administrator in order to determine how or why a process or script ended. The exit codes can tell you if the script exited gracefully or if an error occurred.

2024年4月8日 · Exit code 2 signifies invalid usage of some shell built-in command. Examples of built-in commands include alias , echo , and printf . Alternatively, it could mean that we’re trying to access a file or directory that doesn’t exist or requires permissions.

2024年3月31日 · The exit code 2 denotes failure such as the “no such file or directory error” when a user attempts to access a file or directory that is not present in the system. For instance, to list the items of a directory named players that does not exist, run the following command:

2023年7月9日 · Exit code 2. This exit code is given out when the command executed has a syntax error. Misusing the arguments of commands also results in this error. It generally suggests that the command could not execute due to incorrect usage. For example, I added two hyphens to an option that's supposed to have one hyphen. Code 2 was given out. grep --z ...

2016年11月29日 · DESCRIPTION errno looks up errno macro names, errno codes, and the corresponding descriptions. For example, if given ENOENT on a Linux system, it prints out the code 2 and the description "No such file or directory". If given the code 2, it prints ENOENT and the same description.