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Old 10-31-2008, 02:32 PM   #1
tmbrwolf53
LQ Newbie
 
Registered: Sep 2006
Posts: 9

Rep: Reputation: 0
Unhappy Need help appending text to lines in a file using vi editor


I'm somewhat new to Linux and very new to the vi editor. Here is my issue:
I have a file that I want to append text to the end of each line within the file. The text to be added is the same.
How do I setup a command to mass append the text to each line? I have played with substitution but have not been able to append data at the end.

Here is an example. I have a file that looks like this:

du -sh us1234
du -sh us5678
du -sh us9abc
du -sh usefgh
du -sh usijgl
du -sh usmnop
du -sh usqrst

I want to append the following to each line:
" >> /tmp/output.txt"
So each line will look like:

du -sh us1234 >> /tmp/output.txt
du -sh us5678 >> /tmp/output.txt
du -sh us9abc >> /tmp/output.txt
du -sh usefgh >> /tmp/output.txt
du -sh usijgl >> /tmp/output.txt
du -sh usmnop >> /tmp/output.txt
du -sh usqrst >> /tmp/output.txt

How do I accomplish this with a single command?
 
Old 10-31-2008, 02:38 PM   #2
paulsm4
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Registered: Mar 2004
Distribution: SusE 8.2
Posts: 5,863
Blog Entries: 1

Rep: Reputation: Disabled
Before:
Quote:
du -sh us1234
du -sh us5678
du -sh us9abc
du -sh usefgh
du -sh usijgl
du -sh usmnop
du -sh usqrst
Command:
Code:
:1,$s/$/ >> \/tmp\/output\.txt/
After:
Quote:
du -sh us1234 >> /tmp/output.txt
du -sh us5678 >> /tmp/output.txt
du -sh us9abc >> /tmp/output.txt
du -sh usefgh >> /tmp/output.txt
du -sh usijgl >> /tmp/output.txt
du -sh usmnop >> /tmp/output.txt
du -sh usqrst >> /tmp/output.txt
Let's break it down:
1. <Esc>, : Go into command mode
2. 1,$ Execute this command on every line between 1 and End of file ("$")
3. s/$/ >> \/tmp\/output\.txt/ The command is "substitute" ("s/X/Y/")
4. /$/ >> \/tmp\/output\.txt/ This means:
a) substitute "end of line" ($)
b) for " >> /tmp/output.txt"
c) Escape the "/" and "." metacharacter (using "\")

'Hope that helps .. PSM

Last edited by paulsm4; 10-31-2008 at 02:43 PM.
 
Old 10-31-2008, 02:50 PM   #3
Tinkster
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Registered: Apr 2002
Location: in a fallen world
Distribution: slackware by choice, others too :} ... android.
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Rep: Reputation: 879Reputation: 879Reputation: 879Reputation: 879Reputation: 879Reputation: 879Reputation: 879
Or give vi a miss and use sed ;}

Code:
sed -i 's@$@>> /tmp/output.txt@' file
Cheers,
Tink
 
Old 10-31-2008, 03:25 PM   #4
tmbrwolf53
LQ Newbie
 
Registered: Sep 2006
Posts: 9

Original Poster
Rep: Reputation: 0
Thank you paulsm4 and tinkster. Both worked
 
  


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