file_path=/var/scripts/migratedb.sh if [ -e "$file_path" ]; then echo "The file exists." else echo "The file does not exist." fi If-elif-else Statement 在bash 脚本中,如果希望使用 if 语句应用多个条件,则使用 if elif else。在这种类型的条件语句中,如果满足第一个条件,则执行下面的代码...
When you are working on a shell script inbash, there are cases where you want to check if a particular file exists (or does not exist) in a directory, and then perform an action based on the condition. Inbash, there are several ways to check whether or not a file exists inbash. In...
The script first checks if the/my-dirdirectory exists. If it does, a message is printed to the console. If the/my-dirdirectory does not exist, a message is printed and the/my-dirdirectory is created using themkdircommand. Note:If you need to check if a directory/filedoes not existyou...
In some cases, you may be interested in checking if a file exists or not directly in your Bash shell. In order to check if a file exists in Bash using shorter forms, specify the “-f” option in brackets and append the command that you want to run if it succeeds. [[ -f <file> ...
/usr/bin/env bash my_file="${HOME}/.bashrc" if [[ -f "${my_file}" ]]; then echo "File '${my_file}' exists." else echo "File '${my_file}' DOES NOT exist." fi If I execute this script on my computer, I get the following output:...
!/bin/bash name="Alice" if [ "$name" == "Alice" ] then echo "Hello, Alice!" else echo "You are not Alice." fi Example 3: File Check #!/bin/bash file_path="/path/to/file.txt" if [ -f "$file_path" ] then echo "File exists." ...
Check if file does not exists if [ ! -f /tmp/users.txt ]; then echo "File not found" fi Parameterize file name in script to check if file doesn’t exist filecheck.sh #!/bin/bash FILEPATH=$1 if [ ! -f "$FILEPATH" ]; then ...
1.Create a scriptfile using atext editorsuch asnano: nano bashtest.sh 2. Enter one of the snippets from below and make sure to include the#!/bin/bashshebang. The following code snippet tests for the presence of a particular file. If the file exists, the script displaysFile existson the...
if [ -e "$file_path" ]; then echo "The file exists." else echo "The file does not exist." fi In above example, we are checking whether a file “migratedb.sh” exists or not. If-elif-else Statement In bash script, if you wish to apply multiple conditions using if statement then...
/bin/bash file="/path/to/file" if [ -f "$file" ] then echo "The file exists." else echo "The file does not exist." fi ``` 比较目录: ```bash #!/bin/bash directory="/path/to/directory" if [ -d "$directory" ] then