using grep with both -l and -n

using grep with both -l and -n

[Jeffrey Holle]

I've actually got two questions about grep.

First, can the -l, which just prints the matching filenames, and -n, 
which includes the matched line number using the syntax 
"filename:lineno", be combined to affect.

What I find is that adding -n makes inclusion of -l a noop.

The reason I ask is I'm using grep to generate .gdbinit files.  the 
syntax that -n emits is right on, except for the extra stuff that is 
normally suppressed by -l.

The second question is there a way to defeat the default behavior of not 
including the filename when -n is used and only one file is included in 
the search?  In this case, it prints just the lineno.

Re: using grep with both -l and -n

[Mike Castle]

On Thu, Feb 19, 2004 at 04:00:07PM -0800, Jeffrey Holle wrote:
> The reason I ask is I'm using grep to generate .gdbinit files.  the 
> syntax that -n emits is right on, except for the extra stuff that is 
> normally suppressed by -l.

Would this work for you:
awk '{print $1}'

> The second question is there a way to defeat the default behavior of not 
> including the filename when -n is used and only one file is included in 
> the search?  In this case, it prints just the lineno.

Add /dev/null to the list of files.

mrc
-- 
     Mike Castle      dalgoda@ix.netcom.com      www.netcom.com/~dalgoda/
    We are all of us living in the shadow of Manhattan.  -- Watchmen
fatal ("You are in a maze of twisty compiler features, all different"); -- gcc