Sometimes, we need to check if a path is a directory or something else in the Bash Script. We will develop a very basic Ubuntu script that will enable us to provide the information, whether it's a filename or perhaps a folder. Make sure to log in from yo
"-bash: is a directory"是一个错误提示,表示在命令行中输入的命令或路径是一个目录而不是可执行文件。这个错误通常发生在尝试执行一个目录而不是一个可执行文件时。 在Linux和Unix系统中,命令行提示符通常以"-bash"开头,表示当前使用的是Bash shell。当在命令行中输入一个目录路径时,系统会尝试将该目...
we have initialized a file variable “F” holding a path to a file “new.txt” as “/home/linux/new.txt”. The “if-then” statement of bash has been utilized here to check if the file “new.txt” exists or not. The “if” clause is started with the keyword “test” followed...
Check if a Directory Exists in Bash To check if adirectoryexists, switch the-foption on thetestcommand with-d(for directory). For example: test -d /tmp/testCopy echo $?Copy The output is1, which means that the directory doesn't exist. Create the directory using themkdir commandand reru...
On major systems, “[“ is offered as an executable, and to check if your system has any such executable, run:which [/usr/bin/[If a path is printed on the terminal, we can also run the following, which prints the help section of the man page to the terminal....
bash: ../: is a directory：这里提示告诉我们，“../”你的这个操作对象是一个目录，对吧；而你的命令“../”表示的是上一级目录的意思；所以，你应该先查看你执行的这个命令是否在对应的目录下执行的；你应该明白选项–target的意思是制定生成的是 arm-linux 的工具，--prefix 是指出可执行文件...
This will compile ShellCheck and install it to your~/.cabal/bindirectory. Add this directory to yourPATH(for bash, add this to your~/.bashrc): exportPATH="$HOME/.cabal/bin:$PATH" Log out and in again, and verify that your PATH is set up correctly: ...
$ printenv PATH ~/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin Now that your script is accessible wherever you are on the system, you can call your script and start checking if files exist or not. $ check_file /etc/passwd /etc/pass /etc/file ...
6. Check for input parameters and environment variables It is a good idea to validate the input parameters and to check if the necessary environment variables are properly set. If there are problems, display the reason for the problem and how to fix it, and terminate the script. ...
$ export PATH="~/bin:$PATH" $ printrev PATH ~/bin: /usr/local/sbin: /usr/local/bin: /usr/sbin: /usr/bin: /sbin: /bin You can access it wherever on the system! You can even pull out your script and check if your file exists or not. Done! No need to keep opening your test...