Wednesday, August 1, 2012

Linux Shell script to check if a file exists or not

This script shows if a file exits or not in a given directory. This can be done using either test command or inbuilt commands such as [ or [[ commands

#!/bin/bash
#Author: Surendra Anne(surendra at linuxnix.com)
#Purpose: To check if a file exits or not.
#Date: 2012-07-31
#Modified: ::
read -p "Please enter a file name with full path"
if [ -f $REPLY ]
then
echo "The file $REPLY exists"
else
echo "File not found"
fi

We have [ inbuilt command which will do file/folder checking with. So -f is used to check if a file exits or not.

Save the file as chkfile1.sh and exit it.

Execute the script

Step1:change permissions to execute permissions as below

chmod +x chkfile1.sh

Step2: Executing shell script

bash chkfile1.sh


Please comment your thoughts on this.

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