Hey guys,
First post, I'm not a UNIX script guru and am trying to hack together something as a requirement ASAP.
I have scanned the forums and Googled for this and have found similar issues but no usable solutions so I am hoping one of you guys can help me out.
Basically I have a batch file filled with data -- a mock up example is below:
IMAHDR FOO BAR FWEEP 000000
row
row
...
IMATRL FOO BAR FWEEP 000024
IMAHDR FOO BAR FWEEP 000000
row
row
...
IMATRL FOO BAR FWEEP 000008
IMAHDR FOO BAR FWEEP 000000
row
row
...
IMATRL FOO BAR FWEEP 000234
Amongst some other things, I need to extract all instance of lines that are "trailer" records which are indicated with "IMATRL".
I can do that quite easily with grepping. However, in my eventual processings script, I need to get all trailer records out into an array so that I can then use them as a basis of analysing the file for statistical purposes (matching trade data passed in vs what is processed out, etc)
My problem is that no matter what I do, I simply cannot get the "whole line" extracted out into an array. I've tried various playings with 'awk' but it hasn't worked:
`grep ${TRAILER_ID} ${file}|awk 'BEGIN {FS="IMATRL"} {print $1 }'`
or
`grep ${TRAILER_ID} ${file}|awk 'BEGIN {FS="\n"} {print $1 }'`
So far, this is my current test code:
#!/bin/ksh
TRAILER_ID=IMATRL
file=xxx.txt
set -A y `grep ${TRAILER_ID} ${file}`
i=0
while [[ $i -lt ${#y
[*]} ]] ; do
echo "y[$i] = ${y[$i]}"
((i=$i+1))
done
But it dumps out everything to invidual elements :
y[0] = IMATRL
y[1] = FOO
y[2] = BAR
y[3] = FWEEP
y[4] = 000024
y[5] = IMATRL
y[6] = FOO
y[7] = BAR
y[8] = FWEEP
y[9] = 000008
y[10] = IMATRL
y[11] = FOO
y[12] = BAR
y[13] = FWEEP
y[14] = 000234
Running the basic grep on the command line prints out the 3 lines with neat little "\n" so it looks like what I'd want. But in script, it obviously resolves the grep result to a single string which is then using a single " " whitespace as the tokeniser for the array creation.
Can anyone help me get my array output to look like this :
y[0]=IMATRL FOO BAR FWEEP 000024
y[1]=IMATRL FOO BAR FWEEP 000008
y[2]=IMATRL FOO BAR FWEEP 000234
And without using a temp file to dump results to before re-parsing?
Thanks guys.
