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May 19, 2015 - A Look At The New Commandlinefu
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for loop, counting forward for backward

Terminal - for loop, counting forward for backward
for i in {1..15}; do echo $i; done
2009-03-21 23:08:41
User: haivu
Functions: echo
0
for loop, counting forward for backward

The brace expansion also allows you to count backward:

for i in {15..1}; do echo $i; done

You can also use this construct to create new file or new directory:

mkdir dir{1..3} # Same as mkdir dir1 dir2 dir3

Alternatives

There are 2 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

for complex or more specialized counting, find jot ( http://oreilly.com/catalog/upt2/examples/#jot)

that way you can do counting a lot easier

say you want to ping a /24 range of ips, but every 5th IP

for f in `jot - 0 255 5` ; do ping 192.168.0.$f ; done

Comment by chinkshady 401 weeks and 4 days ago

Your point of view

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