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 Using command output with backquotes

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welan
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PostSubject: Using command output with backquotes   Mon Mar 15, 2010 5:57 pm

The backquote (`), which is quite alien to most Windows users, is the key just below the top left hand side ESC key on your keyboard. This is a useful key to use when you want to use the standard output of a UNIX/LINUX command as part of another command.For example, if you want to output the results of an addition.

# expr 10 + 42
# 52


If you would like to make it fancier,

# echo “The sum is `expr 10 + 42`”
The sum is 52


and thank you for flying Penguin Air.

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