To know more about the test command, the Linux manual-pages (man) can be referred to using man test or man [.On major systems, “[“ is offered as an executable, and to check if your system has any such executable, run:which [...
-S file exists and is a socket. -t file descriptor number fildes is open and associated with a terminal device. -u file exists and has its setuid(2) bit set. -w file exists and is writable by the current process. -x file exists and is executable by the current process. -z string...
检查一个文件是否存在,而且是普通文件:$test –ffile.txt;echo$? 检查一个文件是否存在,而且是目录文件:$test –d myfiles;echo$? 检查一个文件是否存在,而且是软连接:$test –L a.out;echo$? 检查一个文件是否可读:$test –rfile.txt;echo$? 检查一个文件是否可写:$test –wfile.txt;echo$? 检查一...
-S file exists and is a socket. -t file descriptor number fildes is open and associated with a terminal device. -u file exists and has its setuid(2) bit set. -w file exists and is writable by the current process. -x file exists and is executable by the current process. -z string...
if [ -d /tmp/test ] then echo "The directory exists" fiCopy This script checks for the directory/tmp/test. If it exists, the system displaysThe directory exists. 3. UseCtrl-oto save the file, thenCtrl-xto exit. Then,run the scriptby entering: ...
File Test Operators Here, we will list some helping testing operators for permissions, size, date, file type, or existence in the bash script. Operators Explanation -e To test if a file exists. -f To test if a given file is a regular file. -d To test if the file is a directory. ...
Script is not executable Explanation: In the exercise above, #!/bin/bash: Specifies the interpreter to use, in this case, Bash. [ -e "abc.sh" ]: Checks if the file "abc.sh" exists. [ -x "abc.sh" ]: Checks if the file "abc.sh" is executable. ...
BATS: requireshellcheckon test files Mar 5, 2022 .gitignore Remove executable bit. Feb 25, 2022 .gitmodules First attempt: just a naiive upgrade of BATS Jan 22, 2025 .pre-commit-config.yaml Cleanup all remaining plugins Jan 29, 2025 ...
A command that is implemented internally by the shell itself, rather than by an executable program somewhere in the file system. control operator Atokenthat performs a control function. It is anewlineor one of the following: ‘||’, ‘&&’, ‘&’, ‘;’, ‘;;’, ‘;&’, ‘;;&’...
When bash is invoked as an interactive login shell, or as a non-interactive shell with the --login option, it first reads and executes commands from the file /etc/profile, if GNU Bash-4.1 Last change: 2009 December 29 3 User Commands BASH(1) that file exists. After reading that file,...