sed swap lines


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting sed swap lines
# 1  
Old 07-23-2012
sed swap lines

Hi,

I think it is possible with sed, but I'm not sure...

I've a file that contains some text and filenames:
Code:
gtk-media-pause | CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip | 8175 | /home/floris/Muziek/Karaoke/1341838939/CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip
gtk-media-pause | CB60471-06 - Parton, Dolly - Together You And I.zip | 2924 | /home/floris/Muziek/Karaoke/1341838939/CB60471-06 - Parton, Dolly - Together You And I.zip
gtk-media-pause | CB60471-07 - Campbell, Craig - Fish.zip | 17646 | /home/floris/Muziek/Karaoke/1341838939/CB60471-07 - Campbell, Craig - Fish.zip
gtk-media-pause | CB60471-08 - Rimes, LeAnn - Give.zip | 15597 | /home/floris/Muziek/Karaoke/1341838939/CB60471-08 - Rimes, LeAnn - Give.zip

Is it possible to swap two lines, so the output would be like:

Code:
gtk-media-pause | CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip | 8175 | /home/floris/Muziek/Karaoke/1341838939/CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip
gtk-media-pause | CB60471-07 - Campbell, Craig - Fish.zip | 17646 | /home/floris/Muziek/Karaoke/1341838939/CB60471-07 - Campbell, Craig - Fish.zip
gtk-media-pause | CB60471-06 - Parton, Dolly - Together You And I.zip | 2924 | /home/floris/Muziek/Karaoke/1341838939/CB60471-06 - Parton, Dolly - Together You And I.zip
gtk-media-pause | CB60471-08 - Rimes, LeAnn - Give.zip | 15597 | /home/floris/Muziek/Karaoke/1341838939/CB60471-08 - Rimes, LeAnn - Give.zip

Edit: the file is made randomly, the only know variable is field 3 (8175, 17646, ect...) and also these numbers are random

thanks,

jkfloris
# 2  
Old 07-23-2012
I would suggest that you take a look at

http://sed.sourceforge.net/sed1line.txt

Check out: the code the reverses line order.

And then come back to considering awk. Sed scripts are sometimes hard to decode and maintain.
# 3  
Old 07-25-2012
I have read the one-liners many times, unfortunately I still get an error

Code:
$cat list
gtk-media-pause | CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip | 25958 | /home/floris/Muziek/Karaoke/1341838939/CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip
gtk-media-pause | CB60471-06 - Parton, Dolly - Together You And I.zip | 18800 | /home/floris/Muziek/Karaoke/1341838939/CB60471-06 - Parton, Dolly - Together You And I.zip
gtk-media-pause | CB60471-07 - Campbell, Craig - Fish.zip | 22067 | /home/floris/Muziek/Karaoke/1341838939/CB60471-07 - Campbell, Craig - Fish.zip
gtk-media-pause | CB60471-08 - Rimes, LeAnn - Give.zip | 528 | /home/floris/Muziek/Karaoke/1341838939/CB60471-08 - Rimes, LeAnn - Give.zip

Code:
$cat script.sh
#!/bin/bash

MUZIEK="22067"

LINES=$(grep -B1 "| $MUZIEK |" list)
NEW_LINES=$(grep -B1 "| $MUZIEK |" list | tac)
sed -i "s?$LINES?$NEW_LINES?g" list

I already use the "?" as the delimiter,
if I run script.sh, sed gives me:
Code:
sed: expressie #1, teken 172: onafgemaakte 's'-opdracht
(in English: sed expression #1,  character 172: command `s' unfinished)

I think the problem is the newline character in $LINES and $NEW_LINES, but
I hoped that sed was the "ultimate" stream editor and was able to do the trick.

---------- Post updated 25-07-12 at 04:20 PM ---------- Previous update was 24-07-12 at 07:20 PM ----------

Quote:
Originally Posted by jim mcnamara
...
And then come back to considering awk. Sed scripts are sometimes hard to decode and maintain.
can you give me an example in awk?

I tried:
Code:
LINES=$(grep -B1 "| $MUZIEK |" "$LIST")
NEW_LINES=$(grep -B1 "| $MUZIEK |" "$LIST" | tac)
awk "{gsub(/$LINES/,$NEW_LINES)} 1" "$LIST">$LIST.bak

uncut output:
Code:
++ grep -B1 '| 12890 |' /tmp/karsch/list
+ LINES='gtk-media-pause | CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip | 7659 | /home/floris/Muziek/Karaoke/1341838939/CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip
gtk-media-pause | CB60471-06 - Parton, Dolly - Together You And I.zip | 12890 | /home/floris/Muziek/Karaoke/1341838939/CB60471-06 - Parton, Dolly - Together You And I.zip'
++ grep -B1 '| 12890 |' /tmp/karsch/list
++ tac
+ NEW_LINES='gtk-media-pause | CB60471-06 - Parton, Dolly - Together You And I.zip | 12890 | /home/floris/Muziek/Karaoke/1341838939/CB60471-06 - Parton, Dolly - Together You And I.zip
gtk-media-pause | CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip | 7659 | /home/floris/Muziek/Karaoke/1341838939/CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip'
+ awk '{gsub(/gtk-media-pause | CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip | 7659 | /home/floris/Muziek/Karaoke/1341838939/CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip
gtk-media-pause | CB60471-06 - Parton, Dolly - Together You And I.zip | 12890 | /home/floris/Muziek/Karaoke/1341838939/CB60471-06 - Parton, Dolly - Together You And I.zip/,gtk-media-pause | CB60471-06 - Parton, Dolly - Together You And I.zip | 12890 | /home/floris/Muziek/Karaoke/1341838939/CB60471-06 - Parton, Dolly - Together You And I.zip
gtk-media-pause | CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip | 7659 | /home/floris/Muziek/Karaoke/1341838939/CB60471-05 - Gilbert, Brantley - Country Must Be Country Wide.zip)} 1' /tmp/karsch/list
awk: 1: unexpected character '.'
awk: line 2: syntax error at or near CB60471
awk: line 3: syntax error at or near CB60471
awk: line 3: extra ')'

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

ksh sed - Extract specific lines with mulitple occurance of interesting lines

Data file example I look for primary and * to isolate the interesting slot number. slot=`sed '/^primary$/,/\*/!d' filename | tail -1 | sed s'/*//' | awk '{print $1" "$2}'` Now I want to get the Touch line for only the associate slot number, in this case, because the asterisk... (2 Replies)
Discussion started by: popeye
2 Replies

2. Shell Programming and Scripting

Swap words using sed

Hi. I have to swap the first and the third word in all lines of a txt file using sed. Separators between words are: any charachter, except intervall. I hope, you'll understand what I want to do. my english is not so good, sorry for that:) (10 Replies)
Discussion started by: T720
10 Replies

3. Shell Programming and Scripting

Search and swap multiple lines in file using Perl

Hi all, I have a vcd file with a bunch of lines containing an array, like this $var wire 1 b a $end $var wire 1 c a $end $var wire 1 d a $end $var wire 1 e a $end $var wire 1 f b $end $var wire 1 g b $end $var wire 1 h b $end $var wire 1 i b $end I want it like this: $var wire 1 e a... (12 Replies)
Discussion started by: veerabahu
12 Replies

4. Shell Programming and Scripting

Summing over specific lines and replacing the lines with the sum using sed, awk

Hi friends, This is sed & awk type question. I have a text file which has numbers spread all over the file. I want to sum the series of numbers whenever i find it and produce an output file with the sum. For example ###start of input text file #### abc def ghi 1 2 3 4 kjld random... (3 Replies)
Discussion started by: kaaliakahn
3 Replies

5. Shell Programming and Scripting

Sed/awk to delete single lines that aren't touching other lines

Hello, I'm trying to figure out how to use sed or awk to delete single lines in a file. By single, I mean lines that are not touching any other lines (just one line with white space above and below). Example: one two three four five six seven eight I want it to look like: (6 Replies)
Discussion started by: slimjbe
6 Replies

6. Shell Programming and Scripting

BASH: Swap first two lines in sets of 4

Hi. I may have mentioned in the OP to this thread that the AHK macro script I was trying to sort was, relative to its full length, only partly in the right format to be sorted by the methods discussed in that thread. Now I'm looking to tackle the rest of the data in that AHK script. ... (2 Replies)
Discussion started by: SilversleevesX
2 Replies

7. Shell Programming and Scripting

How to swap order of pairs of lines?

This seems to be a question whose answer uses sed or awk. For a file like: a b c d e How to swap the order of the line pairs, to end up with: b a d c e All lines from the original file need to wind up in the output file. (8 Replies)
Discussion started by: rd5817
8 Replies

8. UNIX for Advanced & Expert Users

Swap lines using sed

Hi, I have to swap two consecutive line using sed in a file. My text to swap is available in the file x.pl #Create & map a common work library if (!(-e "../work")) { system ("vlib work ../work"); system ("vmap work ../work"); } system ("vsimsa -do thiagu_dec.do"); In this i... (6 Replies)
Discussion started by: adharmalingam
6 Replies

9. HP-UX

Swap device file and swap sapce

Hi I have an integrity machine rx7620 and rx8640 running hp-ux 11.31. I'm planning to fine tune the system: - I would like to know when does the memory swap space spill over to the device swap space? - And how much % of memory swap utilization should be specified (swap space device... (6 Replies)
Discussion started by: lamoul
6 Replies

10. Shell Programming and Scripting

swap words in a line with sed

Hello. There is something I can not manage : I want to swap the first word with the third one in every line. No file is given the input is read from the keyboard. I know I have to use sed, but it seems this is too complicated for me. Could you help me please ? Thanks, atticus (9 Replies)
Discussion started by: atticus
9 Replies
Login or Register to Ask a Question