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  • Use bash -x scriptname to debug. Commented Dec 8, 2014 at 11:51
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    There are 2 mistakes. The line should be x=$(($x + 1)). But easy to use seq instead all script seq 50 Commented Dec 8, 2014 at 11:52
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    Just so you know, in bash, you can do echo {1..50}. And in $(()) environment, the variables inside are automatically evaluated, which is why you don't need the $ inside it again. Commented Dec 8, 2014 at 11:55
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    Thanks, @muru I started 10 mins back. thinking of doing it in normal way first. Commented Dec 8, 2014 at 11:57
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    @WannaBeCoder you are using let and could also just do ((x++)). Also look up the let command. Commented Dec 8, 2014 at 12:01