To check if a directory exists you can use a simple if structure like this: if [ -d directory/path to a directory ] ; then # Things to do else #if needed #also: elif [new condition] # Things to do fi You can also do it in the negative: if [ ! -d directory/path...
I'm creating a very simple bash script that will check to see if the directory exists, and if it doesn't, create one. However, no matter what directory I put in it doesn't find it! Please tell me what I'm doing wrong. Here is my script. #!/bin/bash $1="/media/student/System...
If I execute this script on my computer, I get the following output: File '/home/pratham/.bashrc' exists. To check for a directory, replace the-foperator (which is used for checking if a file exists or not) with the-doperator. Example 1: A traditional approach Usually, the Bash buil...
Finally, checking for the existence of directories and files can help tomake Bash scripts more efficientby avoiding unnecessary tasks. If a script does not need to create a new directory if it already exists, the script can check for the directory's existence first and only create it if nece...
搜索特定的扩展文件(shellscript) 、 我是shell脚本的新手,我有这个脚本: #!/bin/bash path_file_conf=/fullpath/directory/*.conf if [ -e "$path_file_conf" ];then echo "Found file" else echo "No found file" fi 结果总是“找不到文件”,即使我在/fullpath/目录/文件夹中有一个.conf文件。我...
echo "$directory doesn't exist" fi Files write file #! /usr/local/bin/bash echo "enter file name" read filename # touch $filename if [ -f "$filename" ] then echo "exists" else echo "doesn't exist" fi #! /usr/local/bin/bash ...
cp: cannot stat ‘01’: No such file or directory .. 如果带上引号,就不会有上面的问题,除非文件名以 '-' 开头,在这种情况下,cp 会认为你提供的是一个命令行选项,这个错误下面会介绍。 3. 文件名中包含短横 '-' 文件名以 '-' 开头会导致许多问题,*.mp3 这种通配符会根据当前的locale[8]展开成一...
ifTEST;thenCMDfi TEST:条件判断,多数情况下可使用test命令来实现,返回值为0的话则执行CMD,否则就离开该条件结构体,脚本继续往下执行。 [root@c7-server ~]#cattest.sh#!/bin/bashifidzwl &> /dev/null;thenecho"User zwl exists."fi[root@c7-server ~]# bash test.shUser zwl exists. ...
First, cd to bash's conception of the script's directory. Then readlink the file to see if it is a symlink (relative or otherwise), and if so, cd to that directory. If not, cd to the current directory (necessary to keep things a one-liner). Then echo the...
TypeScript 在开发过程中,我们经常需要检查文件是否存在,以确保文件在使用前已经存在。在 Bash 和 TypeScript 中,都提供了针对文件存在性的相关方法。 Bash 在Bash 中,我们可以使用test命令或者它的简写形式[来检查文件是否存在。 if test -f /path/to/file; then echo "File exists" else echo "File does ...