Convert csh script to bash script with foreach and awk commands

Question

Working csh script:

#!/bin/csh
foreach xmlfile ( "`cat ~/reportlist.txt`" )
printf $xmlfile"|"
head -c 1000 $xmlfile | awk -F'[="]' '{print $15,"|",$21}'
end

This reads a text file line-by-line and navigates to each file and prints required variables from each file using awk.

I need to perform the same in a bash script. I am new to bash. How can I do this in bash?

edit your question to show a minimal reproducible example that includes concise, testable sample input and expected output so we can show you the right way to solve the problem rather than just how to re-implement the wrong way to solve the problem in a different language. See why-is-using-a-shell-loop-to-process-text-considered-bad-practice for some of the reasons I say that. — Ed Morton
– Ed Morton, Commented Dec 20, 2016 at 7:22

chepner · Accepted Answer · 2016-12-20 03:04:15Z

2

The more correct way to do this (see Bash FAQ 001) is

while IFS= read -r xmlfile; do
    printf '%s' "$xmlfile"
    head -c 1000 "$xmlfile" | awk -F'[="]' '{print $15,"|",$21}'
done < ~/reportlist.txt

Using awk to parse XML in this way is fragile, and not recommended. Without seeing the XML in question, though, I cannot recommend a better solution.

answered Dec 20, 2016 at 3:04

chepner

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AutoTester999 · Accepted Answer · 2016-12-20 03:01:15Z

0

This works:

set +x
for xmlfile in `cat reportlist.txt`
do
printf $xmlfile"|"
head -c 1000 $xmlfile | awk -F'[="]' '{print $15,"|",$21}'
done

answered Dec 20, 2016 at 3:01

AutoTester999

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