Try to print FILE1 to see if it has the value you want, if it is not the problem, here is a simple script (site below): #!/bin/bash file="${@:$OPTIND:1}" if [ -f "$file" ] then echo "$file found." else echo "$file not found." fi http://www.cyberciti.biz/faq/u...
The first concern you should tackle is whether your regular file or directory still exists in Bash script. To answer this question, you’ll need to do the test command. If you want to check if your file exists, you’ll need to use the “-f” file option. Make sure to indicate which...
1 shell script, need help to check if file exists 6 Check if file exists [BASH] 1 Bash script - Check if a file exists 1 How to check file exists via Bash script? 320 How to check if a file exists in a shell script 0 Test if a file exists 0 Bash script to test file...
Here is an example of how you might use this command in a Bash script: # Check if the /my-dir directory existsdirectory="/my-dir"iftest-d$directorythen# The /my-dir directory exists, so print a messageecho"The /my-dir directory exists."else# The /my-dir directory does not exist,...
In Bash, you can use the test command to check whether a file exists and determine the type of the file.The test command takes one of the following syntax forms: test EXPRESSION [ EXPRESSION ] [[ EXPRESSION ]] Copy If you want your script to be portable, you should prefer using the ...
Check if Any File with Extension Exists inbash In all previousbashscript examples, the name of the file to check is pre-determined and known. What if you want to check if any file with a pattern (e.g., with a particular extension) exists? In that case, the name of file(s) to che...
Example Bash script: if getent passwd "$username" >/dev/null; then echo "User $username exists" else echo "User $username does not exist" fi Replace the variable$usernamewith the name of the user you want to check. If you want to check if a username does not exist, you can negate ...
Are you writing a Bash script? Checking if a file or directory exists to perform a conditional task is a very common task one might want to achieve. Let's take a look at how that is done in Bash. The Bash shell has a few built-infile test operatorsand by using them you can perform...
To check if a file is empty in a Bash script, you can use the "-s" test, which returns true if the file exists and has a size greater than zero. If you want to check if a file is empty, you would use the "!" (not or negate) operator with "-s" to negate the test. Here...
이렇게 세가지는 매우 자주 사용하는 것이니 꼭 외워두어야 겠습니다. 이상 shell script (bash) 에서 file 유무 체크하는 방법과 옵션 (file exist check)에 대한 글 이였습니다....