Match a number range with grep

Question

I need to find all processes that have in their names a number between 100 and 200 inclusive.

I tried

ps -ef | grep xclock -bw '[1-2][0-9][0-9]'

but that includes 299. How to suppress it and have only numbers up to 200?

So it is not interperetted as a literal | and instead is seen as the or operator. And no problem, glad you got it sorted :) — 123
– 123, Commented Jun 22, 2015 at 12:03
What grep implementation is that? With GNU grep, that would search with byte offset the xclock word in the file called [1-2][0-9][0-9]. With all other grep implementations that I know, it would search for xclock in the -bw and [1-2][0-9][0-9] files. — Stéphane Chazelas
– Stéphane Chazelas, Commented Jun 22, 2015 at 13:13

ikrabbe · Accepted Answer · 2015-06-22 14:45:59Z

2

I like to directly use proc for that

grep -l '1[0-9][0-9]\|200' /proc/[1-9]*/comm|awk -F '/' '{print $3}'

For the pid variant

grep -l 'xclock' /proc/{1[0-9][0-9],200}/comm 2>/dev/null|awk -F '/' '{print $3}'

answered Jun 22, 2015 at 14:45

ikrabbe

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