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Unable to export Directory paths through Script

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# 1  
Old 10-25-2010
Unable to export Directory paths through Script
Following is the output of .profile file -

$ cat /home/estdm2/.profile
Code:
#!/bin/ksh
set -o vi

alias l="ls -ltr"
umask 002

Following is the path setting script.

$ cat DM_ENV_VARS_NEW.ksh
Code:
#!/bin/ksh
. /home/estdm2/.profile

sEnv=$1
echo "We are in ${sEnv} environment"
echo "STEP010 - Set Environment Variables for script."
export DM_ETL_HOME=/etl/estdm2
export SCRIPT_DIR=${DM_ETL_HOME}/scripts
export BASE_LOG_DIR=${DM_ETL_HOME}/log
export LOG_DIR=${BASE_LOG_DIR}/script

When I call DM_ENV_VARS_NEW.ksh script from another script and print the variable, it prints nothing. So the export is not working properly

$ cat /etl/estdm2/dev/scripts/test.ksh
Code:
#!/bin/ksh
#
echo "Testing the script - DM_ENV_VARS.ksh"

/etl/estdm2/dev/scripts/DM_ENV_VARS_NEW.ksh DEV
echo ${DM_ETL_HOME}
echo $BASE_LOG_DIR

PHP Code:
$ /etl/estdm2/dev/scripts/test.ksh
Testing the script - DM_ENV_VARS.ksh
We are in DEV environment
STEP010 - Set Environment Variables for script. 

I dont know what's going wrong with such a simple script.

I would appreciate any suggestion.

Thanks
Sumeet
# 2  
Old 10-25-2010
Code:
. /etl/estdm2/dev/scripts/DM_ENV_VARS_NEW.ksh DEV

Try preceding the line with dot-space (same as you did for sourcing .profile).
# 3  
Old 10-25-2010
It worked but can you explain how did that help. Is this "." forcing the child script to export the paths in same shell as parent script?


Thanks
Sumeet
# 4  
Old 10-26-2010
Yes - its called "sourcing".
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