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Basic Shell Commands

Last Updated: May 04, 2018
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Contents

Loops in Unix with example

Loops allow us to take a series of commands and keep re-running them until a particular situation is reached. They are useful for automating repetitive tasks.

For loop:
for i in {5..10};
do
echo $i;
done
While loop:
i=1
while [ $i -le 20 ]
do
echo "$i"
i=$(($i+1))
done

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