Standard output

• Standard output is used by a command to writes (display) its output.
• The default is the screen.
• It is denoted by one number (1).
• Also known as stdout.
• The default standard output is the screen.
• > is output redirection symbol and syntax is:

command > output.file.name

For example, ls command by default writes its output to the screen:

ls

But, you can save the output to a file called output.txt, enter:

ls > /tmp/output.txt

To view file, enter:

cat /tmp/output.txt

• Please note that /tmp/output.txt file is created if it doesn't exist. And if file /tmp/output.txt file is overwritten if it exits.
• You can also save your script output to the file:

./your.script.name.sh > myoutput
cat myoutput