The \< and \> will make sure the number is surrounded by whitespace. I choose 12 in the first place to show retrieval of a subset and omision of its superset i.e. 112 didn't appear in the list. So 1 gives:
grep "\<1\>" errno.h
#define EPERM 1 /* Operation not permitted */
It would be the relevant one which contains all the #defines, not the header file with code in it. E.g. /services/kernel/kernels/linux-2.4.25/include/asm-i386/errno.h
> -----Original Message-----
> From: P at draigBrady.com [mailto:P at draigBrady.com]
> Sent: 06 May 2004 17:10
> To: Stephen Reilly
> Cc: ilug at linux.ie> Subject: Re: [ILUG] [TOTD] find error corresponding to number
>>> Stephen Reilly wrote:
> >>>Anyway, that's what grep is for man! :)
> >>A true believer in the Unix philosophy.
> > Too right,
> > grep "\<12\>" errno.h
> > #define ENOMEM 12 /* Out of memory */
> > Use sed if you want it formatted...
>> Which errno.h would that be then?
> What happens when you try 1 rather than 12?
> Pádraig Brady - http://www.pixelbeat.org> --- Following generated by rotagator ---
>> Process managment
>> ps -A #show all processes
> ps -Af #show all processes with full command line
> ps -Al #show all processes with extra info
> ps -A --forest #show all processes and associated hierarchy
>> You can search the process list using grep, and send
> signals using the command `kill -num pid`. The default
> num is 15 (SIGTERM). `kill -l` will give a list.
> Note kill -9 should never be used in normal operation.
Maintained by the ILUG website team. The aim of Linux.ie is to
support and help commercial and private users of Linux in Ireland. You can
display ILUG news in your own webpages, read backend
information to find out how. Networking services kindly provided by HEAnet, server kindly donated by
Dell. Linux is a trademark of Linus Torvalds,
used with permission. No penguins were harmed in the production or maintenance
of this highly praised website. Looking for the
Indian Linux Users' Group? Try here. If you've read all this and aren't a lawyer: you should be!