Negate the exit status with bash (no other answer has said this): if ! [ -e "$file" ]; then echo "file does not exist" fi · Negate the test inside the test ... ... <看更多>

In shell this charater [ means test, -e if file exists ] end of test && if command ... if [ ! -f /tmp/foo.txt ]; then echo "File not found! ... <看更多>

The condition for checking if the folder / file exist is not exactly correct. os.Stat might fail because of permissions, etc, but the file may still exists. ... <看更多>

echo ~/.bash_profile exists. fi. This probes the filesystem with a specific file. Note that ~ is not a directory, but something that bash expands. ... <看更多>

Discover details at: http://masteringunixshell.net/qa14/ bash -how-to- check - if - file - exists.html. ... <看更多>

for f in /path/to/your/files*; do; ## Check if the glob gets expanded to existing files. ## If not, f here will be exactly the pattern above ... ... <看更多>

If files or directories are found, it lets you know the directory is not empty. Pass any directory to a bash script: #!/bin/bash my_dir= ... ... <看更多>

... if you need to use inside a bash script a check to see if a wildcard expression of files/folders exists or not. For example: if [ -e ... ... <看更多>