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Full Discussion: Need to replace one string, in a file, with another string from a different file ...
Top Forums Shell Programming and Scripting Need to replace one string, in a file, with another string from a different file ... Post 302352778 by ripat on Sunday 13th of September 2009 10:17:02 AM
Old 09-13-2009
Quote:
Originally Posted by know d unknown
the output which got:

Code:
awk -F":" 'NR==FNR{a[$1]=$2; next} NR!=FNR{if(a[$1])print $1," ",a[$1]; else print $0}' shadow2 shadow1
David   $1$FbP0lc8N$MIJ8outnkYyBedIYK7TJ6.
sarvani   $1$0wPwj2dB$GSHkbM9kcPZkGPTdKfZJP1
stuart:$1$sPgpLdir$b9qcdXKeJ78zaZ2tpJuuA/:13924:0:90:7:::

i dono why are you getting the error ??? if you could paste the error that would be greatful
The output is not what is required as you only print fields $1 and $2 if $1 exists in shadow2. Try my snippet above.
 

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LEARN ABOUT LINUX

uname

UNAME(1)							   User Commands							  UNAME(1)

NAME

       uname - print system information

SYNOPSIS

       uname [OPTION]...

DESCRIPTION

       Print certain system information.  With no OPTION, same as -s.

       -a, --all
	      print all information, in the following order, except omit -p and -i if unknown:

       -s, --kernel-name
	      print the kernel name

       -n, --nodename
	      print the network node hostname

       -r, --kernel-release
	      print the kernel release

       -v, --kernel-version
	      print the kernel version

       -m, --machine
	      print the machine hardware name

       -p, --processor
	      print the processor type or "unknown"

       -i, --hardware-platform
	      print the hardware platform or "unknown"

       -o, --operating-system
	      print the operating system

       --help display this help and exit

       --version
	      output version information and exit

AUTHOR

       Written by David MacKenzie.

REPORTING BUGS

       Report uname bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>
       Report uname translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2010 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       arch(1), uname(2)

       The  full  documentation  for uname is maintained as a Texinfo manual.  If the info and uname programs are properly installed at your site,
       the command

	      info coreutils 'uname invocation'

       should give you access to the complete manual.

GNU coreutils 8.5						   February 2011							  UNAME(1)
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