How to read argument value inside for loop range for shell scripting

Asked Sep 14 '17 at 20:53

Active Sep 14 '17 at 20:58

Viewed 17 times

For loop looks like

for i in {1..n}
do
...
done

Instead of fixed n I want to read it from arguments. How do I do it? I tried putting $1 instead of n but it didnt work.

edited Sep 14 '17 at 20:58

anubhava

asked Sep 14 '17 at 20:53

user27665

1

Since you're using brace expansion, I assume you use Bash and don't require POSIX conformity? For the latter, see https://stackoverflow.com/questions/26529255/replacing-bash-arrays-and-c-style-for-loops-in-posix-sh – Benjamin W. Sep 14 '17 at 20:58
This is also [BashPitfalls #33](http://mywiki.wooledge.org/BashPitfalls#for_i_in_.7B1...24n.7D). – Charles Duffy Sep 14 '17 at 21:02

0 Answers0