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Top Forums Shell Programming and Scripting Grepping word based on white space..... Post 302556930 by michaelrozar17 on Tuesday 20th of September 2011 05:14:11 AM
Old 09-20-2011
Quote:
Originally Posted by sarbjit
Hi,

I am having a text file with following contents:

[space][space][space]word
[space][space][space][space][space]word

I want to grep the first line i.e. word that is being preceded with three space characters.

So i tried
Code:
sed -n '/ \{3\}/p' filename
grep -E '^ {3}' filename

But is not returning any result. If i don't use {}, then it returns both the patterns.
You could try as above highlighted..
 

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STORE(9)						   BSD Kernel Developer's Manual						  STORE(9)

NAME
store, subyte, suibyte, suiword, sulong, suulong, suword -- store data to user-space SYNOPSIS
#include <sys/types.h> #include <sys/time.h> #include <sys/systm.h> #include <sys/resourcevar.h> int subyte(user_addr_t addr, int byte); int suibyte(user_addr_t addr, int byte); int suiword(user_addr_t addr, int word); int sulong(user_addr_t addr, int64_t longword); int suulong(user_addr_t addr, uint64_t longword); int suword(user_addr_t addr, int word); DESCRIPTION
The store functions are designed to copy small amounts of data to user-space. The store routines provide the following functionality: subyte() Stores a byte of data to the user-space address addr. suibyte() Stores a byte of data to the user-space address addr. This function is safe to call during an interrupt context. suiword() Stores a word of data to the user-space address addr. This function is safe to call during an interrupt context. sulong() Stores a long word of data to the user-space address addr. suulong() Stores a unsigned long word of data to the user-space address addr. suword() Stores a word of data to the user-space address addr. RETURN VALUES
The store functions return 0 on success or -1 on failure. SEE ALSO
copy(9), fetch(9) BSD
December 16, 2004 BSD
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