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Top Forums Shell Programming and Scripting awk seach and printing a particular pattern Post 302891149 by RavinderSingh13 on Tuesday 4th of March 2014 05:56:23 AM
Old 03-04-2014
Quote:
Hi Kumar,
You can try the following.


awk '/G/ {print $0}' filename
Hello Sdebasis,

Your suggestion will take the G in 2nd column also as follows. So we should only look for column 1st.


I added a G in 2nd column as follows.

Code:
$ cat file_name
1         /tmp/xG
2.2K     /tmp/y
3.2k     /tmp/z
1G       /tmp/a/b
2.2G    /tmp/c
3.4k    /tmp/d

Then it will show G for 2nd column also.

Code:
awk '/G/ {print $0}' chfile_name
1         /tmp/xG
1G       /tmp/a/b
2.2G    /tmp/c

We have to look for 1st column for same to avoid it seacrhing for 2nd column.


Thanks,
R. Singh
 

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rmvb(9F)						   Kernel Functions for Drivers 						  rmvb(9F)

NAME
rmvb - remove a message block from a message SYNOPSIS
#include <sys/stream.h> mblk_t *rmvb(mblk_t *mp, mblk_t *bp); INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI). PARAMETERS
mp Message from which a block is to be removed. mblk_t is an instance of the msgb(9S) structure. bp Message block to be removed. DESCRIPTION
The rmvb() function removes a message block (bp) from a message (mp), and returns a pointer to the altered message. The message block is not freed, merely removed from the message. It is the module or driver's responsibility to free the message block. RETURN VALUES
If successful, a pointer to the message (minus the removed block) is returned. The pointer is NULL if bp was the only block of the message before rmvb() was called. If the designated message block (bp) does not exist, -1 is returned. CONTEXT
The rmvb() function can be called from user, interrupt, or kernel context. EXAMPLES
This routine removes all zero-length M_DATA message blocks from the given message. For each message block in the message, save the next message block (line 10). If the current message block is of type M_DATA and has no data in its buffer (line 11), then remove it from the message (line 12) and free it (line 13). In either case, continue with the next message block in the message (line 16). 1 void 2 xxclean(mp) 3 mblk_t *mp; 4 { 5 mblk_t *tmp; 6 mblk_t *nmp; 7 8 tmp = mp; 9 while (tmp) { 10 nmp = tmp->b_cont; 11 if ((tmp->b_datap->db_type == M_DATA) && (tmp->b_rptr == tmp->b_wptr)) { 12 (void) rmvb(mp, tmp); 13 freeb(tmp); 14 } 15 tmp = nmp; 16 } 17 } SEE ALSO
freeb(9F), msgb(9S) Writing Device Drivers STREAMS Programming Guide SunOS 5.11 16 Jan 2006 rmvb(9F)
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