How to display list of all files not ending with .txt using ls command and regex?

Question

I tried, ls (^(*.txt)).

I get error: ls cannot access. No such file or directory.

First of all... Which OS/shell do you use where `ls` is not available? IMHO `ls` does not support regexes. — Gábor Bakos, May 18 '15 at 08:59

score 5 · Answer 1 · answered May 18 '15 at 08:47

5

You could do:

ls | grep -v txt$

answered May 18 '15 at 08:47

Toto

But, can't it be done without grep, using only ls and regex?\ – Gauranga Rathod May 18 '15 at 08:52
1

@GaurangaRathod: I don't think it is possible without grep. – Toto May 18 '15 at 08:53
may i know what is grep @toto: i m just asking you for know about this. thanks – pcs May 18 '15 at 08:53
So, it's inability of regex to negate the expression or inability of ls to accept regex? – Gauranga Rathod May 18 '15 at 08:56
`ls` doesn't know about regexes, only globs (and even then, it's the shell that processes the globs, before `ls` even sees them). – Paul R May 18 '15 at 09:04

1 Answers1