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Full Discussion: Help on UNIX
Top Forums Shell Programming and Scripting Help on UNIX Post 302957578 by arun888 on Tuesday 13th of October 2015 05:32:12 AM
Old 10-13-2015
Explanation :
I have a list of datbases with start with B and R.

user will giving input as B149K or R678K. if R678K is passed as input and i would write a script if the input file name start with R i should assign cdir=/database/retailer. if the input file name start with R it should assing cdir=/database/manufcatuer.
Code:
input=`echo $1 | cut -c1`
echo $cdir
if [[ $input = 'M']
then
cdir='/database/manufacturer'
else
cdir='/database/retailer'
fi

---------- Post updated at 04:25 AM ---------- Previous update was at 04:08 AM ----------

hi krishna,
thanks for your help. when i tried to print $DIR its not get printed can you help on this.

Code:
DB=$(expr substr $1 1 1)
case $DB in
'B') DIR=/database/banking
     ;;
'R') DIR=/database/retailer 
     ;;
*) echo error
   ;;

echo $DIR

---------- Post updated at 04:31 AM ---------- Previous update was at 04:25 AM ----------

Please find the error message.

Code:
+ + expr substr M84934 1 1
DB=M
tj.sh[2]: syntax error at line 11 : `$DIR' unexpected

---------- Post updated at 04:32 AM ---------- Previous update was at 04:31 AM ----------

Code:
cat tj.sh
#!/bin/sh
DB=$(expr substr $1 1 1)
case $DB in
'B') DIR=/database/manufactuer
 ;;
 'R') DIR=/database/retailer
  ;;
   *) echo error
    ;;
echo $DIR

 

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LEARN ABOUT DEBIAN

mongo

MONGO(1)							  Mongo Database							  MONGO(1)

NAME

       mongo - the Mongo command-line tool

SYNOPSIS

       mongo [OPTIONS] [DB_ADDRESS] [FILE+]

DESCRIPTION

       mongo  is  a JavaScript shell (with GNU readline capabilities).	It supports interactive and non-interactive use.  When used interactively,
       JavaScript can be used to query the database or perform any other function normally available with SpiderMonkey.  Database output  is  dis-
       played in JSON format.

       If JavaScript files are specified on the command line, the shell will run non-interactively, running each one in sequence and then exiting.

EXAMPLES

       mongo  start the shell, connecting to the server at localhost:27017 and using the test database

       mongo foo
	      start the shell using the foo database at localhost:27017

       mongo 192.169.0.5/foo
	      start the shell using the foo database at 192.169.0.5:27017

       mongo 192.169.0.5:9999/foo
	      start the shell using the foo database at 192.169.0.5:9999

       mongo script1.js script2.js script3.js
	      run three scripts and exit

OPTIONS

       --shell
	      run the shell after executing files

       --help show usage information

       --host HOST
	      server to connect to (default HOST=localhost)

       --port PORT
	      port to connect to (default PORT=27017)

       --nodb do not connect to mongod

       --eval SCRIPT
	      evaluate JavaScript

       -u USERNAME
	      specify user to log in as

       -pPASSWORD
	      specify password of user (notice there is no space)

COPYRIGHT

       Copyright 2007-2009 10gen

SEE ALSO

       For more information, please refer to the MongoDB wiki, available at http://www.mongodb.org.

AUTHOR

       Kristina Chodorow

10gen								     June 2009								  MONGO(1)
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