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Copying x words from end of line to specific location in same line

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# 1  
Old 02-18-2010
Copying x words from end of line to specific location in same line
Hello all
i know it is pretty hard one but you will manage it all

after noticing and calculating i find a rhythm for the file i want to edit
to copy the last 12 characters in line but the problem is to add after first 25 characters in same line

in other way too copy the last 12 characters in line and add them after /up/upfiles/ in same line

the problem i faced mainly how to copy word from end of the line to the beginning of line

i am still newbie by the way

here is the input:

Code:
Redirect 303 /up/upfiles/  /http://img189.imageshack.us/img189/3162/3jy83426.jpg
Redirect 303 /up/upfiles/  /http://img696.imageshack.us/img696/5284/3kr88432.jpg
Redirect 303 /up/upfiles/  /http://img411.imageshack.us/img411/918/3nw51001.jpg

i want the output to be like this :

Code:
Redirect 303 /up/upfiles/3jy83426.jpg  /http://img189.imageshack.us/img189/3162/3jy83426.jpg
Redirect 303 /up/upfiles/3kr88432.jpg  /http://img696.imageshack.us/img696/5284/3kr88432.jpg
Redirect 303 /up/upfiles/3nw51001.jpg  /http://img411.imageshack.us/img411/918/3nw51001.jpg

Thanks in advance
# 2  
Old 02-18-2010
Try this:
Code:
awk '{n=split($NF,a,"/");$3=$3 a[n]}1' file

# 3  
Old 02-18-2010
Code:
sed 's|\(  *[^ ]*/\)\([^/]*\)$|\2\1\2|' infile

Last edited by radoulov; 02-18-2010 at 10:17 AM.. Reason: Refactored.
# 4  
Old 02-18-2010
use below:-

Code:
nawk '{match($NF,/[^\/]*.jpg/);$3=$3substr($NF,RSTART)}1' file.txt

SmilieSmilieSmilie
# 5  
Old 02-18-2010
Or:

Code:
awk -F/ '$4=$NF$4' OFS=/ infile

# 6  
Old 02-18-2010
hello
i will try now all of them and reply to each one
thanks for you all

---------- Post updated at 04:42 PM ---------- Previous update was at 04:32 PM ----------
Quote:
Originally Posted by Franklin52
Try this:
Code:
awk '{n=split($NF,a,"/");$3=$3 a[n]}1' file

Worked really really fine

Quote:
Originally Posted by radoulov
Code:
sed 's|\(  *[^ ]*/\)\([^/]*\)$|\2\1\2|' infile

Worked really really fine

Quote:
Originally Posted by ahmad.diab
use below:-

Code:
nawk '{match($NF,/[^\/]*.jpg/);$3=$3substr($NF,RSTART)}1' file.txt

SmilieSmilieSmilie
Worked really really fine but i can't use it because the file is about 4 thousands lines and not all .jpg

Quote:
Originally Posted by radoulov
Or:

Code:
awk -F/ '$4=$NF$4' OFS=/ infile

Worked really really fine

i really appreciate your help guys with me
and i really want to learn this language
what is the best way to learn it ?
# 7  
Old 02-18-2010
Quote:
Originally Posted by princesasa

Worked really really fine but i can't use it because the file is about 4 thousands lines and not all .jpg
use modified code below:-

Code:
nawk '{match($NF,/[^\/]*$/) ; $3=$3substr($NF,RSTART)}1' infile.txt

SmilieSmilieSmilie
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