for loop in shell scripting

Let us see how to use for loop in shell scripting

Say we want to print "n" numbers.

for i in 1 2 3 4 5 6 7 8 9 10
do
   echo $i
done

But, if we need to print 50 numbers, then it becomes a pain if we use the above method. So a simpler method is

for i in $(seq 50)
do
    echo $i
done

'seq' is part of the GNU "coreutils" package

$ which seq

/usr/bin/seq


$ rpm -qf /usr/bin/seq
coreutils-5.97-23.el5