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Is it possible to pass variable from awk to shell back

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# 1  
Old 11-09-2007
Is it possible to pass variable from awk to shell back
I am passing a varaible to from Shell to awk then I am doing some maniplation for that variable inside awk. I want that maniplated variable value back to shell , Is this possible .Please let me know.
# 2  
Old 11-10-2007
Yep. it is always possible.
for eg:

a =`ls -l | awk '{print $8}'

should work.
if the output is more than 1 line. you can redirect the output to a intermediate file and use it later.

thx,
Siva
# 3  
Old 11-10-2007
Hi,

I tried the following code:

Quote:
echo $CurrentLine | awk -F: '{ print $1 }'
]

This runs well, and provide me with the correct answer.

But when I redirect this command output to a variable, the value of the variable is not set.

Quote:
set DataLine = echo $CurrentLine | awk -F: '{ print $1 }'
Please advice what am I doing incorrectly in this case.

Thanks and Best Regards
Aditya
# 4  
Old 11-10-2007
Quote:
Originally Posted by adichand
But when I redirect this command output to a variable, the value of the variable is not set.
The reason is you have to tell the shell to feed the result - the stdout of the command - back to the variable:

variable="$( command1 | command2 | command3 )"

This will open a subshell, execute the pipeline and put the final output of command3 into the variable.

Btw. you will often see backticks recommended:

var=`command1 | command2 | command3`

This does basically the same, but is only possible in modern shells because they try to be compatible. Do NOT use this but the above mentioned construction.

bakunin
# 5  
Old 11-10-2007
Thanks for the quick reply.
I tried out what you suggested:

Code:
set DataLine = "$( echo $CurrentLine | awk -F'[ :]' '{ print $1 }' )"
echo $DataLine

set DataLine = "$( echo $CurrentLine | awk -F'[ :]' '{ print $1 }' )"
echo $DataLine

But still the output for the DataLine variable is empty.
I hope I understood it correctly.

Thanks and Best Regards
Aditya
# 6  
Old 11-10-2007
What is the value of CurrentLine?
# 7  
Old 11-10-2007
CurrentLine is a some data that has : as seperator.

Quote:
For Example:

S:C200SmilieISCRETE:1:A`<`0`>`:UNSPEC:G1:CAPACITOR_N-CAPACITOR_X7R,220NF,10/-10%,0402_N-V6-0,0402,CAPACITOR_220NF-0402
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