String manipulation using ksh


 
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# 1  
Old 09-17-2008
String manipulation using ksh

I have a UNIX shell where:
LEVEL=dev
SITE=here
and WHEREIAM=/tmp/$SITE/location/$LEVEL

I want to echo $WHEREIAM in such a way that I get it back with all the environment variables resolved (/tmp/here/location/dev).
This command will be used in a shell script.
# 2  
Old 09-17-2008
what is wrong with:
echo "$WHEREIAM"
?
# 3  
Old 09-17-2008
echo "$WHEREIAM" gives /tmp/$SITE/location/$LEVEL instead of as I would have expected /tmp/here/location/dev
# 4  
Old 09-18-2008
Actually could have something like:
WHEREIAM= `echo $WHEREIAM | command`
where command(using sed, awk, ...) will replace all environment variables by their value within the shell so that in my example i'll have when echo $WHEREIAM after ===>=/tmp/here/location/dev
# 5  
Old 09-18-2008
Place the variable between double quotes or braces:

Code:
LEVEL=dev
SITE=here
WHEREIAM=/tmp/${SITE}/location/${LEVEL}

Regards
# 6  
Old 09-18-2008
Quote:
Originally Posted by zambo
Actually could have something like:
WHEREIAM= `echo $WHEREIAM | command`
where command(using sed, awk, ...) will replace all environment variables by their value within the shell so that in my example i'll have when echo $WHEREIAM after ===>=/tmp/here/location/dev
if you use double quotes it should give expected result.. Smilie
 
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