Sponsored Content
Top Forums Shell Programming and Scripting sed/awk to insert multiple lines before pattern Post 302376870 by Franklin52 on Wednesday 2nd of December 2009 01:42:35 PM
Old 12-02-2009
An example how to insert "tempfile" after line 50 and insert a line before a pattern using variables:

Code:
awk -v file="tempfile" -v line="Your line" -v lineno=50 -v pattern="yourpattern" '
NR==lineno {print; system("cat " file); next}	# print the file after line 50
$0 ~ pattern {print line}			# print the line before pattern
1' file

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

(sed) parsing insert statement column that crosses multiple lines

I have a file with a set of insert statements some of which have a single column value that crosses multiple lines causing the statement to fail in sql*plue. Can someone help me with a sed script to replace the new lines with chr(10)? here is an example: insert into mytable(id, field1, field2)... (3 Replies)
Discussion started by: jjordan
3 Replies

2. 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

3. Shell Programming and Scripting

sed/awk script selective insert between lines

Hi I have a file in the foll. format *RECORD* *FIELD NO* ....... ....... *FIELD TX* Data *FIELD AV* Data *FIELD RF* *RECORD* *FIELD NO* ....... ....... *FIELD TX* Data *FIELD RF* (4 Replies)
Discussion started by: dunstonrocks
4 Replies

4. Shell Programming and Scripting

sed insert text 2 lines above pattern

Hi I am trying to insert a block of text 2 lines above a pattern match using sed eg #Start of file entry { } #End of file entry new bit of text has to be put in just above the } eg #Start of file entry { New bit of text } #End of file entry (7 Replies)
Discussion started by: eeisken
7 Replies

5. Shell Programming and Scripting

Multiple pattern matching using awk and getting count of lines

Hi , I have a file which has multiple rows of data, i want to match the pattern for two columns and if both conditions satisfied i have to add the counter by 1 and finally print the count value. How to proceed... I tried in this way... awk -F, 'BEGIN {cnt = 0} {if $6 == "VLY278" &&... (6 Replies)
Discussion started by: aemunathan
6 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. 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

8. 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

9. Shell Programming and Scripting

Awk: print lines with one of multiple pattern in the same field (column)

Hi all, I am new to using awk and am quickly discovering what a powerful pattern-recognition tool it is. However, I have what seems like a fairly basic task that I just can't figure out how to perform in one line. I want awk to find and print all the lines in which one of multiple patterns (e.g.... (8 Replies)
Discussion started by: elgo4
8 Replies

10. 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
SLIST(1)							       slist								  SLIST(1)

NAME
slist - Lists available NetWare Servers SYNOPSIS
slist [ pattern ] DESCRIPTION
slist lists all NetWare Servers available in your network. If slist does not print to a tty, the decorative header line is not printed, so that you can count the servers on your network by doing slist | wc -l OPTIONS
pattern pattern is used to list only servers whose names match the specified pattern. For a server to be listed, the pattern must match the full server name. You can use wildcards for the pattern, but you must protect these wildcards from any command line expansion by quoting. Case doesn't matter. EXAMPLE
slist "I*" or slist "i*" List all available Netware servers on your Network, that begin with an "I". SEE ALSO
ncpmount(8), ncpumount(8), pqlist(1), nprint(1) CREDITS
slist was written by Volker Lendecke (lendecke@math.uni-goettingen.de) BUGS
slist works only in IPX environment, as it uses SAP to find first server and then Bindery to get list of servers. slist 01/07/1996 SLIST(1)
All times are GMT -4. The time now is 06:43 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy