Grep/awk text for keyword

[penguino888]

This is all in ksh.

I am trying to extract variables from stdout and assign them to an array.

So I have a block of text:

Display (ABC)  Test
Display (XYZ)  Test2

What I want to do is grab 'ABC' and 'XYZ' and put them in an array.

So far I am using <command> | grep Display

I seem to remember that there is an easy way to do this with awk. Any suggestions?

[basavaraj]

U can just try out with this, if this is within a text file

cat x | grep ABC | awk '{ print $Num }'

where x-stands for filename, ABC-stands for string or word u want to grep and $Num-stands for "ABC" word count in a file.

OR

grep ABC or XYZ filename | awk '{ print $Num }'

where ABC or XYZ -stands for the word u wanted to grep, filename-stnads for file which contains that word and Num-stands for ABC or XYZ word count

By
Basu

[scm]

U can just try out with this, if this is within a text file

cat x | grep ABC | awk '{ print $Num }'

where x-stands for filename, ABC-stands for string or word u want to grep and $Num-stands for "ABC" word count in a file.

I'm not sure I understand you - does Num contain the field number (set in the calling shell)? If so, the single quotes around the awk argument will prevent it from being substituted.

I'd use sed for this problem:

sed -n 's/Display.*(\([^)]*\)).*/\1/p' filename

I'll leave you to figure out how to load them into an array.

[ghostdog74]

This is all in ksh.

I am trying to extract variables from stdout and assign them to an array.

So I have a block of text:

Display (ABC)  Test
Display (XYZ)  Test2

What I want to do is grab 'ABC' and 'XYZ' and put them in an array.

So far I am using <command> | grep Display

I seem to remember that there is an easy way to do this with awk. Any suggestions?

depending on what you want to do with those variables, you can do processing inside awk itself

# awk 'BEGIN{FS="[()]"}{print $2}' file
ABC
XYZ

or if you want to export those variables out to your shell script

# result=$(awk 'BEGIN{FS="[()]"}{print $2}' file)
# echo $result
ABC XYZ
# set -- $result
# echo $1
ABC
# echo $2
XYZ

[Thrillhouse]

awk also has the split() function which will process your text into an array and return the number of elements.