UNIX for Dummies Questions & Answers

I have executeable program: test.exe

echo enter a number
read number
echo a >> file
echo b >> file
echo $x >> file

./test.exe

enter a number
5

cat file I have:

a
b
5

what is another way to save
a
b
5
to a file without using " >> file" like I have!

Thanks!

The real problem it looks like you were facing is reading "number" and then trying to pass it to the variable "$x" I've corrected that in the code below. The "-n" switch for echo doesn't terminate the command with a new line. I changed "file" to "file.txt" because there is a "file" command on linux, which your script would append to if it was run in the same directory as find. It would be a good idea to write a check into your script, for the existence of the file you wish to append to. -- Kent

#!/bin/bash

echo -n "Enter a number: "
read number
echo a >> file.txt
echo b >> file.txt
echo "$number" >> file.txt

You can use the "tee" command with "-a" flag to append the output to a file.

Code:

echo $number | tee -a file.txt

Just to follow on from my last post. You can redirect the standard output to /dev/null if you don't want the output to be displayed on the screen like in your original example by using the following code:

Code:

echo $number | tee -a file.txt &>/dev/null