if [ -n "$(find somedir/that_may_not_exist_yet -maxdepth 1 -name \*.ext -print -quit)" ] ; then echo Such file exists fi 你也可以剪掉其他文件 if [ -e $( echo $1 | cut -d" " -f1 ) ] ; then ... fi 怎么样 if ls -l | grep -q 'xorg-x11-fonts.*' # grep needs a regex, not a shell glob then # ...
exists("s:std_in") | exe 'NERDTree' argv()[0] | wincmd p | ene | exe 'cd '.argv()[0] | endif " 关闭 NERDTree,当没有文件打开的时候 "autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTreeType") && b:NERDTreeType == "primary") | q | end " <leader>nt ...
The-pcan also be used tocreate a nested directory structure. If you want to create dir1/dir2/dir3 like directory structure and some or none of the directories exist in the hierarchy. Method 2: Check if directory already exists in bash If you are writing bash scripts, you canuse the if...
When making a symbolic link, check the command twice before you run it because several things can go wrong. For example, if you reverse the order of the arguments (ln -s linkname target), you’re in for some fun if linkname is a directory that already exists. If this is the case (a...
rm -rf dir1 dir2 同时删除两个⽬录及其内容 mv old_dir new_dir 重命名/移动⽬录 cp file1 file2 复制⽂件 cp dir/* . 复制某⽬录下的所有⽂件⾄当前⽬录 cp -a dir1 dir2 复制⽬录 cp -a /tmp/dir1 . 复制⼀个⽬录⾄当前⽬录 ln -s file1 link1 创建指向⽂件/...
如果if语句后放入一个不能工作的命令,则状态码为非0,且bash shell会跳过then后面的语句。 [22:43:53 root@libin3 libin]# vim shell21 /bin/bash #this is result error if libin then echo "this is error" fi if date then echo "this is success" ...
[root@simon test]# cat check_user.sh #!/bin/bashid $1 &> /dev/nullif [ $? -eq 0 ];then echo "user $1 exists"else echo "user $1 not exists"fi[root@simon test]# chmod +x check_user.sh [root@simon test]# ./check_user.sh simonuser simon exists[root@simon test]# ./check...
您可能會想要視需要設定掛接的替代 uid 和gid 或dir_mode 和file_mode 權限。 如需有關如何設定權限的詳細資訊,請參閱 UNIX 數值標記法。 如需SMB掛接選項的清單,請參閱 掛接選項。 提示 如果您希望執行 .NET Core 應用程式的 Docker 容器能夠寫入 Azure 檔案共用,請在 SMB 掛接選項中包含 nobrl,以避免...
if it exists --exclude-ignore-recursive=FILE read exclude patterns for each directory and its subdirectories from FILE, if it exists --exclude-tag=FILE 除 FILE 自身外,排除包含 FILE 的目录中的内容 --exclude-tag-all=FILE 排除包含 FILE 的目录 --exclude-tag-under=FILE 排除包含 FILE 的目录中...
$STORAGE_ACCOUNT_NAME.cred"if[ ! -f$SMB_CREDENTIAL_FILE];thenecho"username=$STORAGE_ACCOUNT_NAME"| sudo tee$SMB_CREDENTIAL_FILE> /dev/nullecho"password=$STORAGE_ACCOUNT_KEY"| sudo tee -a$SMB_CREDENTIAL_FILE> /dev/nullelseecho"The credential file$SMB_CREDENTIAL_FILEalready exists, and was...