Sed/awk join lines once pattern found


 
Thread Tools Search this Thread
Top Forums UNIX for Beginners Questions & Answers Sed/awk join lines once pattern found
# 8  
Old 04-21-2017
Thanks Rudi.. this is what i was looking for. To understand your code I have gone through Sed documentation and it clears many of my doubts that how sed processes data line by line and only Pattern buffer is used to manipulate while HOLD buffer is used just keep data for future reference...Thanks again
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Join lines using sed or awk

Hi, I have text file that looks like this: blabla bla PATTERN LINE1 LINE2 bla bla bla PATTERN LINE1 LINE2 bla PATTERN LINE1 LINE2 bla (9 Replies)
Discussion started by: hench
9 Replies

2. Shell Programming and Scripting

Using awk or sed to find a pattern that has lines before and after it

Dear gurus, Please help this beginner to write and understand the required script. I am looking for useing awk for sed. I have a few thousand lines file whose contain are mostly as below and I am trying to achieve followings. 1. Find a string, say user1. Then hash the line containing the... (6 Replies)
Discussion started by: ran_bon_78
6 Replies

3. Shell Programming and Scripting

Sed/awk/perl command to replace pattern in multiple lines

Hi I know sed and awk has options to give range of line numbers, but I need to replace pattern in specific lines Something like sed -e '1s,14s,26s/pattern/new pattern/' file name Can somebody help me in this.... I am fine with see/awk/perl Thank you in advance (9 Replies)
Discussion started by: dani777
9 Replies

4. Shell Programming and Scripting

awk to print all lines after a pattern is found

Is there a way with aw to print all lines after a string is found There is a file like this ....... ........ 2012/19/11 :11.58 PM some data lne no date 2012/19/11 :11.59 PM some other data 2012/20/11 :12.00 AM some other data some line without dates some more lines without dates... (8 Replies)
Discussion started by: swayam123
8 Replies

5. Shell Programming and Scripting

Getting lines before and until next pattern in file /awk, sed

Hi, I need to get specific parts in a large file. I need to: Get a line containing an IP address, and read from there to another line saying ***SNMP-END*** So, I have the start and the end well defined, but the problem is that apparently the awk command using the -F option doesn't work... (17 Replies)
Discussion started by: ocramas
17 Replies

6. Shell Programming and Scripting

How to print the lines between the pattern using awk/grep/sed?

Hi, I need a help to search a pattern and print the multiple lines between them. Input file: Tue May 29 12:30:33 EDT 2012:threadWebContainer : 357:com.travimp.hotelierlinks.abba.service.RequestHandler.requestService(String, ITICSDataSet): hotelCancelReservation request: ... (4 Replies)
Discussion started by: aroragaurav.84
4 Replies

7. UNIX for Dummies Questions & Answers

sed, join lines that do not match pattern

Hello, Could someone help me with sed. I have searched for solution 5 days allready :wall:, but cant find. Unfortunately my "sed" knowledge not good enough to manage it. I have the text: 123, foo1, bar1, short text1, dat1e, stable_pattern 124, foo2, bar2, long text with few lines, date,... (4 Replies)
Discussion started by: petrasl
4 Replies

8. Shell Programming and Scripting

sed/awk : how to delete lines based on IP pattern ?

Hi, I would like to delete lines in /etc/hosts on few workstations, basically I want to delete all the lines for a list of machines like this : for HOST in $(cat stations.lst |uniq) do # echo -n "$HOST" if ping -c 1 $HOST > /dev/null 2>&1 then HOSTNAME_val=`rsh $HOST "sed... (3 Replies)
Discussion started by: albator1932
3 Replies

9. Shell Programming and Scripting

sed/awk to insert multiple lines before pattern

I'm attempting to insert multiple lines before a line matching a given search pattern. These lines are generated in a separate function and can either be piped in as stdout or read from a temporary file. I've been able to insert the lines from a file after the pattern using: sed -i '/pattern/... (2 Replies)
Discussion started by: zksailor534
2 Replies

10. Shell Programming and Scripting

How to awk/sed/grep lines which contains a pattern at a given position

Dear friends I am new to linux and was trying to split some files userwise in our linux server. I have a data file of 156 continuous columns named ecscr final. I want the script to redirect all the lines containing a pattern of 7 digits to separate files. I was using grep to do that,... (2 Replies)
Discussion started by: anoopvraj
2 Replies
Login or Register to Ask a Question
GREP(1) 						      General Commands Manual							   GREP(1)

NAME
grep - search a file for lines containing a given pattern SYNOPSIS
grep [-elnsv] pattern [file] ... OPTIONS
-e -e pattern is the same as pattern -c Print a count of lines matched -i Ignore case -l Print file names, no lines -n Print line numbers -s Status only, no printed output -v Select lines that do not match EXAMPLES
grep mouse file # Find lines in file containing mouse grep [0-9] file # Print lines containing a digit DESCRIPTION
Grep searches one or more files (by default, stdin) and selects out all the lines that match the pattern. All the regular expressions accepted by ed and mined are allowed. In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or 1 occurrences, and | can be used between two regular expressions to mean either one of them. Parentheses can be used for grouping. If a match is found, exit status 0 is returned. If no match is found, exit status 1 is returned. If an error is detected, exit status 2 is returned. SEE ALSO
cgrep(1), fgrep(1), sed(1), awk(9). GREP(1)