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Full Discussion: search and edit in the same file using awk
Top Forums Shell Programming and Scripting search and edit in the same file using awk Post 302407716 by vgersh99 on Friday 26th of March 2010 07:18:57 AM
Old 03-26-2010
Quote:
Originally Posted by Manabhanjan
Thanks vgersh99 for the code
Code:
nawk 'FNR==NR{u[$1];next}$1 in u {$7="/bin/sh"}{l[FNR]=$0}END {close(FILENAME);for(;++i in l;) print l[i]>FILENAME}' FS=: OFS=: usr.txt passwd.txt

But in my OS nawk is not supporting But if i go for awk this command work fine for me in SHELL But when i keep this thing in a shell script it won't works. Getting error unable to read passwd.txt file.

Thanks
Manabhanjan
Well.... my crystal ball says that your script cannot find or read the passwd.txt file.
I'd suggest to start debugging the script.
Good luck.
 

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LEARN ABOUT BSD

ucblinks

ucblinks(1B)					     SunOS/BSD Compatibility Package Commands					      ucblinks(1B)

NAME

       ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices

SYNOPSIS

       /usr/ucb/ucblinks [-e rulebase] [-r rootdir]

DESCRIPTION

       ucblinks  creates symbolic links under the /dev directory for devices whose SunOS 5.x names differ from their SunOS 4.x names. Where possi-
       ble, these symbolic links point to the device's SunOS 5.x name rather than to the actual /devices entry.

       ucblinks does not remove unneeded compatibility links; these must be removed by hand.

       ucblinks should be called each time the system is reconfiguration-booted, after any new SunOS 5.x links that are needed have been  created,
       since the reconfiguration may have resulted in more compatibility names being needed.

       In  releases prior to SunOS 5.4, ucblinks used a  nawk rule-base to construct the SunOS 4.x compatible names. ucblinks no longer uses  nawk
       for the default operation, although  nawk rule-bases can still be specifed with the -e option.  The  nawk rule-base equivalent to the SunOS
       5.4 default operation can be found in /usr/ucblib/ucblinks.awk.

OPTIONS

       -e rulebase     Specify rulebase as the file containing nawk(1) pattern-action statements.

       -r rootdir      Specify rootdir as the directory under which dev and devices will be found, rather than the standard root directory /.

FILES

       /usr/ucblib/ucblinks.awk        sample rule-base for compatibility links

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       devlinks(1M), disks(1M), ports(1M), tapes(1M), attributes(5)

SunOS 5.10							    13 Apr 1994 						      ucblinks(1B)
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