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 $?Copy The output is1, which means that the
echo'~/.bash_profile is a file'elseecho'~/.bash_profile is not a file'fi printf'\n'if[-d~/];then echo'~/ is a directory'elseecho'~/ is not a directory'fi -f即判断是否为file, -d即判断是否为directory, 输出结果: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 +'['-f/Users...
In some cases, you may be interested in checking if a directory exists or not directly in your Bash shell. In order to check if a directory exists in Bash using shorter forms, specify the “-d” option in brackets and append the command that you want to run if it succeeds. [[ -d ...
--cut-dirs=NUMBER ignore NUMBER remote directory components HTTP options: --http-user=USER set http user to USER --http-password=PASS set http password to PASS --no-cache disallow server-cached data --default-page=NAME change the default page name (normally this is 'index.html'.) -E, ...
In contrast to &&, the statement after the || operator will only be executed if the exit status of the test command is false. [ -f /etc/resolv.conf ] && echo "$FILE exist." || echo "$FILE does not exist." Copy Check if Directory Exist The flag -d allows you to test whether...
mkdir:Make Directory(创建目录) touch:touch man:Manual su:Swith user(切换用户) cd:Change directory ls:List files mkfs:Make file system fsck:File system check uname:Unix name lsmod:List modules mv:Move file cp:Copy file ln:Link files
Git仓库首先是一种保存提交的方式。仓库中的提交集，如分支和标签名称以及其他类似名称所示，* 就是 * ...
Check to see if a variable is empty or not Create a new bash file, named, and enter the script below. The script above stores the first command-line argument in a variable and then tests the argument in the next statement. This script will print the first argument because it is not em...
the first one will be made active. The default installation directory is: ~/n which can be overridden by setting environment variable N_PREFIX to an absolute path before invocation; either way, however, the installation directory must either not exist yet or be empty. If your shell is bash,...
This shell function will install (if needed) and nvm use the specified Node version when an .nvmrc is found, and nvm use default otherwise.Put this into your $HOME/.zshrc to call nvm use automatically whenever you enter a directory that contains an .nvmrc file with a string telling nvm ...