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Full Discussion: grepping between files
Top Forums UNIX for Dummies Questions & Answers grepping between files Post 302305303 by ssuresh1999 on Wednesday 8th of April 2009 01:19:02 PM
Old 04-08-2009
grepping between files

Hi
I have two files
File 1
alias HOME =..
alias DATA = ${DATA}/runtime1/test
alias SQL = ${DATA}/find1dir/test
alias SQL1 = ${HOME}/sql/orcl
alias SQL2 = ${HOME}/sql2/orcl
alias SQL3 = ${HOME}/sql3/orcl

File2
alias HOME = ..
alias DATA = ${DATA}/runtime/test
alias SQL = ${DATA}/finddir/test
alias SQL1 = ${HOME}/sql/orcl
alias Serv = ${DATA}/catdir/test
i am capturing "alias HOME" like that stuff in the left hand side of = of file1 in a variable that is $param
and greping it in file2 . i am not bothered about the value in the right hand side
i am only concerned about the additional params in file1 that is not in file 2
Also i am not concerned about the additional params in file2
but the grep is not working as required
Some parameters it is working and not for other parameters
It works fine outside the shell script in the console but not in shell script

/usr/xpg4/bin/grep -i "$param" File2 > /dev/null 2>&1
I have even tried
grep -i "$param" File2 > /dev/null 2>&1
 

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ALI(1)								     [nmh-1.5]								    ALI(1)

NAME
ali - list mail aliases SYNOPSIS
ali [-alias aliasfile] [-list | -nolist] [-normalize | -nonormalize] [-user | -nouser] [-version] [-help] [aliases ...] DESCRIPTION
Ali searches the named mail alias files for each of the given aliases. It creates a list of addresses for those aliases, and writes that list on standard output. If no arguments are given, ali outputs all alias entries. By default, when an aliases expands to multiple addresses, the addresses are separated by commas and printed on as few lines as possible. If the -list option is specified, then when an address expands to multiple addresses, each address will appear on a separate line. The switch -user directs ali to perform its processing in an inverted fashion: instead of listing the addresses that each given alias expands to, ali will list the aliases that expand to each given address. If the -normalize switch is given, ali will try to track down the official hostname of the address. The files specified by the profile entry "Aliasfile" and any additional alias files given by the -alias aliasfile switch will be read. Each alias is processed as described in mh-alias(5). FILES
$HOME/.mh_profile The user profile /etc/passwd List of users /etc/group List of groups PROFILE COMPONENTS
Path: To determine the user's nmh directory Aliasfile: For a default alias file SEE ALSO
mh-alias(5) DEFAULTS
`aliasfiles' defaults to /etc/nmh/MailAliases `-nolist' `-nonormalize' `-nouser' CONTEXT
None BUGS
The -user option with -nonormalize is not entirely accurate, as it does not replace local nicknames for hosts with their official site names. MH.6.8 11 June 2012 ALI(1)
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