Comments on: How to write infinite loop in Bash using for or while statement http://www.techpulp.com/blog/2008/10/how-to-write-infinite-loop-in-bash/ The pulp of technology Sat, 12 May 2012 22:10:13 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Nick http://www.techpulp.com/blog/2008/10/how-to-write-infinite-loop-in-bash/#comment-133 Nick Sun, 23 Jan 2011 08:49:13 +0000 http://techpulp.com/?p=119#comment-133 More simplified example can be for i in `seq 1 10`; do echo loop $i; done Output: nick@nick-desktop ~$ for i in `seq 1 10`; do echo loop $i; done loop 1 loop 2 loop 3 loop 4 loop 5 loop 6 loop 7 loop 8 loop 9 loop 10 nick@nick-desktop ~$ In the above example, "seq" command is used to generate a sequence of numbers with start and end limits. More simplified example can be

for i in `seq 1 10`; do echo loop $i; done

Output:

nick@nick-desktop ~$ for i in `seq 1 10`; do echo loop $i; done
loop 1
loop 2
loop 3
loop 4
loop 5
loop 6
loop 7
loop 8
loop 9
loop 10
nick@nick-desktop ~$

In the above example, “seq” command is used to generate a sequence of numbers with start and end limits.

]]> By: Neo http://www.techpulp.com/blog/2008/10/how-to-write-infinite-loop-in-bash/#comment-131 Neo Sun, 23 Jan 2011 08:28:48 +0000 http://techpulp.com/?p=119#comment-131 Simplified yet readable version of same example: #!/bin/bash i=1 while [ "$i" != "10" ]; do i=`expr $i + 1` echo loop $i done echo end of shell script Simplified yet readable version of same example:

#!/bin/bash

i=1
while [ "$i" != "10" ];
do
i=`expr $i + 1`
echo loop $i
done

echo end of shell script

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