echo "<string to append>" >> <file>

#Example:

echo "My string" >> /home/user/myfile.txt

#!/bin/sh
echo "<string to append>" >> <file>

#Example:

echo "My string" >> /home/user/myfile.txt

echo "<string to append>" >> <file>

#Example:

echo "My string" >> /home/user/myfile.txt

Running this command will append a line with given values to a file you specify. Replace words between < and > with the values you desire.

Append Line to a File

file, Bash, line

Bash