list files NOT matching a pattern

smart_sagittari · 05-19-2005, 12:56 AM

I have a set of files in a directory:

chap1, chap2, chap3, test.c, hello.pl

I want to list all those files which do not start with chap. How do I use only the ls command to do this?

Also, if possible can someone send me a link as to where I can get examples which use ls and regular expressions?

twantrd · 05-19-2005, 02:52 AM

Here's a couple:

1. ls -al | grep -v chap
2. ls -al [^chap]*

-twantrd

smart_sagittari · 05-19-2005, 03:02 AM

Quote:

Originally posted by twantrd

2. ls -al [^chap]*

This command gives the list of all those files which do not start with either c or h or a or p. As a result, I dont get the files in the directory starting with these letters.

twantrd · 05-20-2005, 12:54 AM

Oops, you are correct. I truly apologize for that.

-twantrd

smart_sagittari · 05-20-2005, 12:55 AM

But what about the solution?

enemorales · 05-20-2005, 02:14 AM

Didn't the first work? Maybe "ls | grep -v ^chap"...

smart_sagittari · 05-20-2005, 02:17 AM

In fact, it did. BUT my problem is that I require this thing using just the ls command, and nothing else

freakyg · 05-20-2005, 03:55 AM

Quote:

Originally posted by smart_sagittari
In fact, it did. BUT my problem is that I require this thing using just the ls command, and nothing else

ain't gonna happen, you need to specify some options with "ls" in order for
it to work properly...........read the man page

http://man.linuxquestions.org/index....ction=0&type=2

abisko00 · 05-20-2005, 04:39 AM

What about 'ls --ignore=chap*'?

See 'man ls'

theYinYeti · 05-20-2005, 05:32 AM

Don't forget this is linux! If the command you want does not exist, create it

So create your own command, that will do ls, and then filter through grep. Else you can define a "ls" function in your .profile, that pipe /bin/ls into grep... Many things are possible.

Yves.