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find string in .jar file

 
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# 1  
Old 07-06-2007
Question find string in .jar file
Hello,

I have a .jar file and am trying to figure out if it is possible to search for some text in all the files in it without extracting it.

I was able to do it using jar xf <filename>.jar and then using grep but want a one liner.

Thanks in advanceSmilie
# 2  
Old 07-06-2007
A JAR is actually a Zip file. So, the following should work:

unzip -p some.jar | grep 'string'
# 3  
Old 07-06-2007
Question tried but didnt work
Actually jar file contains .class files which can be read by javap -c command.

but I dont know how to put it all together

I am trying this command in the extracted directory (extracted using jar xf command)

Code:
find . -type "class" -exec javap -c | grep getDslamModem {} \;

but the output says :

find: incomplete statement
grep: can't open {}
grep: can't open ;

any ideas
# 4  
Old 07-06-2007
Rakeshou,
I do not fully understand your requirement, but see if this works for you:
Code:
for mFile in `find . -name "*.class"`
do
  javap -c $mFile | egrep 'getDslamModem'
done

# 5  
Old 07-06-2007
need to trim the extension from filename returned by find command
I tried your solution but it is saying

ERROR:Could not find <path to class files>

javap command doesnt need .class extension thats y it is saying cound not find.

so we need to trim .class extension

I am sure it will work if the .class extension is trimmed off.

Thankls
# 6  
Old 07-06-2007
Rakeshou,
Run the following:
Code:
for mFile in `find . -name "*.class"`
do
  echo "File = "$mFile
#######javap -c $mFile | egrep 'getDslamModem'
done

# 7  
Old 07-06-2007
displaying

ERROR:Could not find <path to class files>.class

for all the files it parses
 
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