move output of awk to array - Shell Programming and Scripting

amitrajvarma · #1 (**permalink**) 12-19-2007

Hi experts,

I have a the following awk command,

awk '{print $1}' /users/jon/list4.txt. The output is

123
787
888
...
...

I want to move the output to array using shell programming.

My shell is tcsh.

Is it possible to move to array using shell porg? I know its possible in perl.

Let me know

Thanks

Amit

matrixmadhan · #2 (**permalink**) 12-19-2007

with this data would be populated in the array

Code:

awk '{ arr[$1] }' filename

ghostdog74 · #3 (**permalink**) 12-19-2007

Code:

# array=$(awk '{print $1}' /users/jon/list4.txt)
# for items in $array; do echo $items; done

amitrajvarma · #4 (**permalink**) 12-19-2007

Quote:

Originally Posted by matrixmadhan

with this data would be populated in the array

Code:

awk '{ arr[$1] }' filename

Hi madhan,
Thanks much for the help.
One doubt, How do I print the array? if I use this

awk '{ arr[$1] }' filename

Thank
Amit

amitrajvarma · #5 (**permalink**) 12-19-2007

Quote:

Originally Posted by ghostdog74

Code:

# array=$(awk '{print $1}' /users/jon/list4.txt)
# for items in $array; do echo $items; done

I am getting the following error,
when I executed,

# array=$(awk '{print $1}' /users/jon/list4.txt)
# for items in $array; do echo $items; done

syntax error at line 21: `array=$' unexpected

ghostdog74 · #6 (**permalink**) 12-19-2007

Code:

array=`awk '{print $1}' /users/jon/list4.txt`

amitrajvarma · #7 (**permalink**) 12-19-2007

Quote:

Originally Posted by ghostdog74

Code:

array=`awk '{print $1}' /users/jon/list4.txt`

Hi,

Thanks again, one more doubt,
How do I access the value in array(6).

Thx
amit

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