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Old 12-24-2009, 11:26 PM   #1
guessity
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Unhappy How to copy-paste part of line within the file?


Hi,
i am a noob to linux and need some help.

I am having a file called 2009.txt and the part of the content is -

Code:
<articles>
<article>
<date>2009-12-13</date>
<time>22:11:58</time>
<author>DPA</author>
<headline>
About 100 climate protesters detained for Copenhagen march
</headline>
<cats>International</cats>
<subcats>Crime/Disaster/Accident</subcats>
<content>
<p align='justify'>
Copenhagen, Dec 13 Danish police
I basically want to copy and paste the word "DPA" which is within <author>DPA</author> to the the <content> line.

The Author could be anything and not necessarily DPA so is there a way to do it in Linux?
 
Old 12-25-2009, 12:06 AM   #2
catkin
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Do you want to do it with a program (in which case, in which language?) or in an editor (in which case, which editor?).
 
Old 12-25-2009, 12:36 AM   #3
ghostdog74
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Code:
$ awk '/<author>/{o=$0}/<content>/{$0=$0"\n"o}1' file
 
Old 12-25-2009, 12:50 AM   #4
xaler
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in an editor called vi, start by vi <filename> --> place cursor below D of DPA --> <ESC> Key once (not necessarily) --> type "yw" (without quotes) which copies one word --> goto content line and place cursor where you want and type "p" (without quotes)
 
Old 12-25-2009, 12:57 AM   #5
guessity
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any idea how do I save(modify) the change in the same file? Its only displaying me the results.

Is it possible to copy only the text within <author> </author> part? I dont want to copy <author> word.

Quote:
Originally Posted by ghostdog74 View Post
Code:
$ awk '/<author>/{o=$0}/<content>/{$0=$0"\n"o}1' file
I am looking for either command or script. I dont want to do it manually because i have tons of files to fix it. (
 
Old 12-25-2009, 01:29 AM   #6
ghostdog74
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Quote:
Originally Posted by guessity View Post
any idea how do I save(modify) the change in the same file? Its only displaying me the results.
use the redirection operator to redirect to a temp file, then use mv to rename it back to original

Quote:
Is it possible to copy only the text within <author> </author> part? I dont want to copy <author> word.
Code:
awk '/<author>/{gsub(/<author>|<\/author>/,"");o=$0}/<content>/{$0=$0"\n"o}1' file
 
Old 12-25-2009, 01:38 AM   #7
guessity
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Hi,
Thx, I used this script to make the change -

Code:
find *.txt -type f | while read file
do
awk '/<author>/{gsub(/<author>|<\/author>/,"");o=$0}/<content>/{$0=$0"\n"o}1' $file >$file.$$
mv $file.$$ >$file
done
I ended up with this error -

Code:
mv: missing destination file operand after `20099.txt.26848'
Try `mv --help' for more information.
mv: missing destination file operand after `2009.txt.26848'
Try `mv --help' for more information.
Any idea where I went wrong?


Quote:
Originally Posted by ghostdog74 View Post
use the redirection operator to redirect to a temp file, then use mv to rename it back to original


Code:
awk '/<author>/{gsub(/<author>|<\/author>/,"");o=$0}/<content>/{$0=$0"\n"o}1' file
 
Old 12-25-2009, 02:06 AM   #8
ghostdog74
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Quote:
Originally Posted by guessity
Any idea where I went wrong?
man mv and see how its used.
 
Old 12-25-2009, 02:09 AM   #9
guessity
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Quote:
Originally Posted by ghostdog74 View Post
man mv and see how its used.
I didnt get you.

I am a noob and learning. Have to do it for my project. (
 
Old 12-25-2009, 02:23 AM   #10
ghostdog74
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the problem is with your mv command. type man mv on your command prompt. then read about how its used. You will not find ">" there.
 
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Old 12-25-2009, 02:25 AM   #11
guessity
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I figured it out. Sorry for being so dumb. Thx for all your help.
 
  


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