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Help with extracting text from a string

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Top Forums Shell Programming and Scripting Help with extracting text from a string
# 8  
Old 02-25-2010
Question What Operating System
Are you using bash, or ksh, or ???
# 9  
Old 02-25-2010
i am using bash.

Thanks.
# 10  
Old 02-25-2010
Tools
Does this
Code:
$ echo test=A /content/qa/lesson1/index.html A /content/qa/lesson2/index.html | gawk '{print $2"\n"$4}'

give you
Code:
/content/qa/lesson1/index.html
/content/qa/lesson2/index.html

# 11  
Old 02-25-2010
thanks joeyg.

yes that works. but when i added that grep part on my hookscript, i am getting nothing. just the echo works fine as you said.

here is a part of my hook script.

Code:
changes=`/usr/bin/svnlook changed $REPOS -r $REV | grep "^A.*index.html$" | gwak 'print $2"\n"$4}'`
echo '>>>'$changes >> $ACTION_LOG

So what i am doing here is checking to see if new index.html file has been added to the repository. and then from there i am need to extract the folder name.

Code:
changes=`/usr/bin/svnlook changed $REPOS -r $REV | grep "^A.*index.html$"`

gives you the
Code:
A  /content/qa/lession1/index.html A /content/qa/lession2/index.html

so i added the script you gave me to it.
Code:
changes=`/usr/bin/svnlook changed $REPOS -r $REV | grep "^A.*index.html$"| gwak 'print $2"\n"$4}'

didnt give me anything back.
Last edited by Scott; 02-25-2010 at 06:26 PM.. Reason: Code tags
# 12  
Old 02-25-2010
Tools Other ways to accomplish, but keeping with your flow...
After you set the variable changes
Code:
>echo "$changes"

to see it on the screen
then, you might want
Code:
echo ">>>$changes" >> $ACTION_LOG

as sometimes spaces and other characters can confuse things
# 13  
Old 02-25-2010
yes it didnt work either. I get resonse printed on the log file for the previous command
Code:
changes=`/usr/bin/svnlook changed $REPOS -r $REV | grep "^A.*index.html$"`
echo '>>>'$changes >> $ACTION_LOG

as
Code:
>>>A /content/qa/lession1/index.html A /content/qa/lession2/index.html

thanks.

---------- Post updated at 05:14 PM ---------- Previous update was at 04:43 PM ----------

One thing I also realised that gawk '{print $2"\n"$4}' works only if you have two files. if it is more than 2 then index. If there are three files checked in to the repository it will still return only 2 files.
Code:
$  echo test=A /content/qa/lesson1/index.html A /content/qa/lesson2/index.html A /content/qa/lesson3/index.html| gawk '{print $2"\n"$4}'
/content/qa/lesson1/index.html
/content/qa/lesson2/index.html

this is not what i am looking for.
Last edited by Scott; 02-25-2010 at 06:27 PM.. Reason: Code tags
# 14  
Old 02-25-2010
Can you just enter the command?
The way you have it, you are writing output from the command to a string and then writing that to a file. Thus, why do you need to write the >>> ?
Do this
Code:
changes=`/usr/bin/svnlook changed $REPOS -r $REV | grep "^A.*index.html$"`
echo '>>>'$changes >> $ACTION_LOG
/usr/bin/svnlook changed $REPOS -r $REV | grep "^A.*index.html$" | gawk '{print $2"\n"$4}

which should write your stuff, but also execute the same command and send new output to the screen
Code:
/content/qa/lesson1/index.html
/content/qa/lesson2/index.html
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