Manipulating file content is a routine task in Shell Scripting. This article demonstrates how to add text to a file, creating the file if it doesn’t already exist. This skill is particularly useful for logging, file modification, and simple data appending tasks.
Create a new script file:
Open a text editor like nano or vi to start a new script file. Type the following lines in the script:
#!/bin/bash
# Add text to hello.txt; create it if it doesn't exist
echo "Freshers.in!" >> hello.txt
Save and Close: In nano, save your script by pressing CTRL+X, then Y, followed by Enter.
Making the script executable
Change the script’s permissions to make it executable:
chmod +x textappend.sh
Run your script using:
./textappend.sh
To check if “Freshers.in!” has been added to ‘hello.txt’, use:
cat hello.txt
