可以使用以下命令来判断文件是否存在: if [ -e /path/to/file ]; then echo "File exists" else echo "File does not exist" fi 复制代码 这个命令中,-e参数用来判断文件是否存在,/path/to/file是要判断的文件路径。如果文件存在,则输出"File exists",否则输出"File does not exist"。 0 赞 0 踩最新...
1>CSC : error CS5001: Program does not contain a static 'Main' method suitable for an entry point 2 Methods same signature but different return types 255 character limit OleDB C# - Inconsistent results 2D Array read from Text file 2D array to CSV C# steamwriter 3 dimensional list in C# ...
File format not valid File I/O of a structure with field '<fieldname>' of type '<typename>' is not valid File I/O with type '<typename>' is not valid File information cannot be queried if the file does not exist File information cannot be queried while open for writing File is...
if [ -f "$file" ]; then echo "$file exists." else echo "$file does not exist." fi ``` 在上述示例中,我们首先定义了一个变量`file`,并赋值为指定文件的路径。然后使用`-f`参数进行判断,如果文件存在,则输出`$file exists.`,否则输出`$file does not exist.`。 除了判断文件是否存在外,我们还...
the file_name '/home/pasha/Projects/Ansible.cfg/test-dev/roles/sdth' does not exist, or is not readable # - include: roles/sdth - name: Test shell task which always should fire change local_action: shell date notify: - test handler ...
In rails project (using rails.vim), when in lib/my_class.rb and I hit :A, I'll see an error if there's no spec file for my_class.rb. I was surprised to discover that this project's :A creates a new buffer if the file does not exist! Is t...
文件操作:在检查文件是否存在时,可以使用Python的os模块或Java的java.nio.file包。 Python示例: 代码语言:python 代码运行次数:0 复制 importosifos.path.exists("file_path"):print("File exists")else:print("File does not exist") Java示例: 代码语言:java ...
Since we have specified a single file - and it does not exist - raising an actual CommandError is probably what is desired. The tests should check that this is raised using assertRaises. in reply to: 5 comment:6 by Roman Gladkov, 12年 ago Hmm. Every time the commands "syncdb" and ...
Use theVBA Dir function to check if a file exists. The VBA Dir function returns the name of a valid file, so you can use it to test whether a file exists. When the VBA Dir function returns an empty string, it means the file does not exist. ...
else echo "The File is empty." fi The above code will return "The File is empty" even if the file does not exist. To counter that, I added a nested if to check for for this edge case. #!/bin/bash if [ -f aFile ] && [ "`ls -l aFile | awk '{print $5}'`" == "...