Thanks for your help Chris. Here is my final script to do this right.
-----/local/bin/tld_scan:#!/bin/bash -
# find tldS - Ray Holme 2017
# embedded spaces in filenames wreak havoc
if [ $# -eq 0 ]; then
echo " usage $0 list-of-jar-files"
exit 1
fi
VERBOSE=0
LIST=
WORK=/tmp/$$.wrk
for i in $*
do
if [ "$i" = "-v" -o "$i" = "V" ]; then VERBOSE=1
elif [ ! -f "$i" ]; then echo " $i not found"
else
echo $i | grep -i "\.jar$" > $WORK
if [ -s $WORK ]; then LIST="$LIST $i"
else echo " $i not a jar"
fi
fi
done
if [ "$LIST" = "" ]; then
echo nothing to do
exit 0
fi
for i in $LIST
do
unzip -l "$i" | grep -i "\.tld" > $WORK
if [ -s $WORK ]; then echo " $i contains tlds"
elif [ $VERBOSE -gt 0 ]; then echo " $i has no tlds"
fi
done
exit 0
On Thursday, November 9, 2017 11:19 AM, Christopher Schultz
<[email protected]> wrote:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Ray,
On 11/8/17 3:51 PM, Ray Holme wrote:
> this makes it easy in linux or mac land for i in *.jar; do echo
> scanning $i; jar tf $i | grep "\.tld"; sleep 1; done
I'd change that to:
$ for i in *.jar; do echo scanning $i; unzip -l "$i" | grep -i "\.tld"
; done
Changes:
1. Use unzip instead of jar. It's much faster.
2. Quote "$i", in case the filename contain (*shudder*) spaces
3. Use -i switch with grep, in case the filename happens to be TAGLIB.TL
D
- -chris
> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
>
> Ray,
>
> On 11/8/17 11:24 AM, Ray Holme wrote:
>> In a prior post, I asked if there was a way to see if a jar uses
>> a tag library. Chris responded - look for ".tld" in the files.
>
> To clarify, I was responding to a question as to whether a JAR
> file *contained* a tag library, not that it used one. Big
> difference.
>
>> So I looked (turns out ecj.. has no ".tld": $ grep "tld"
>> *.jarBinary file catalina-storeconfig.jar matches Binary file
>> ecj-4.6.1.jar matches Binary file tomcat-util-scan.jar matches
>
> I agree with Chris Cheshire: check the ZIP contents list and not a
> binary check. Though the ZIP filenames are stored (mostly) in the
> clear, it's possible that you might get unlucky. Also make sure
> you use a case-insensitive check.
>
>> I am just trying to find a reliable way to see if there is TAG
>> library.
>
> Searching for .tld files ought to do it.
>
> Have you found a case where this *didn't* work?
>
> - -chris -----BEGIN PGP SIGNATURE----- Comment: GPGTools -
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