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Shell Programming and Scripting

Display the output

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# 1  
Old 10-10-2013
Display the output
Hi,


I have the following output of a shell script
Code:
k m == [76 frames] -77.2820 [Ac=-5633.4 LM=-240.0] (Act=79.9)

i want to display only

Code:
k m

Last edited by Don Cragun; 10-10-2013 at 11:58 PM.. Reason: Use CODE tags for sample input, sample output, and code segments only...
# 2  
Old 10-10-2013
What do you mean by only k m as output.. Do you want the only the first field if before "==" then
Code:
echo "whateveroutput" +awk |F[=][=] '{print $1}'

# 3  
Old 10-11-2013
yes rathheeshjulk
when i ran the code i got the error message
F[=][=]: command not found
# 4  
Old 10-11-2013
If you really just want to display only:
Code:
k m

the script:
Code:
echo k m

will do what you want. If you're trying to create a filter that will extract some data from the output of another script, you need to give us a much better description of what you're trying to do.
# 5  
Old 10-11-2013
Don Cragun,
I want to display characters before ==
# 6  
Old 10-11-2013
Assuming you're using a POSIX conforming shell, try:
Code:
while read -r line
do      printf "%s\n" "${line%%==*}"
done

# 7  
Old 10-11-2013
Code:
your_output | awk -F'=' '{print $1}'

Last edited by Scott; 11-18-2013 at 10:14 AM.. Reason: Code tags
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