Visit Our UNIX and Linux User Community

Top Forums UNIX for Dummies Questions & Answers print the line immediately after a regexp; but regexp is a sentence Post 302258791 by vidyadhar85 on Sunday 16th of November 2008 01:30:35 AM
Old 11-16-2008
you can do the same thing with awk also
Code:
awk 'c-->0;/pattern/{c=1}' filename

 
Test Your Knowledge in Computers #116
Difficulty: Easy
Linux distributions are the most famous and healthiest example of the Unix derivatives; but macOS is currently the largest installed Unix user base (2019).
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

regexp to get first line of string

Hi everybody for file in * #Bash performs filename expansion #+ on expressions that globbing recognizes. do output="`grep -n "$1" "$file"`" echo "$file: `expr "$output" : '\(^.*$\)'`" done In the above bash script segment, I try to print just the first line of string named... (3 Replies)
Discussion started by: jonas.gabriel
3 Replies

2. Shell Programming and Scripting

regexp to print after a field seperator

Hi, How do i Print anything after a ':' Ex : file1: 1235131(rs32553) I want to print out "1235131(rs32553)" how do i do it. I know we can do this using awk but looking for the right syntax. Any help appreciated. Thanks, Ram (7 Replies)
Discussion started by: ramky79
7 Replies

3. Shell Programming and Scripting

print 2 lines above regexp

I am on a Solaris 10 x86 system sample code before3 before2 before1 group after1 after2 after3 I want to grab the second line above my regexp regexp=group I want to grab ONLY the before2 line I have numerous sed and awk ways of grabbing X line below the regexp, but no luck... (1 Reply)
Discussion started by: snoman1
1 Replies

4. Shell Programming and Scripting

print lines AFTER lines cointaining a regexp (or print every first and fourth line)

Hi all, This should be very easy but I can't figure it out... I have a file that looks like this: @SRR057408.1 FW8Y5CK02R652T length=34 AGCAGTGGTATCAACGCAGAGTAAGCAGTGGTAT +SRR057408.1 FW8Y5CK02R652T length=34 FIIHFF6666?=:88@@@BBD:::?@ABBAAA>8 @SRR057408.2 FW8Y5CK02TBMHV length=52... (1 Reply)
Discussion started by: kmkocot
1 Replies

5. Shell Programming and Scripting

Print lines between a regExp & a blank line

Hi, I have a file, say files_list, as below (o/p of ls -R cmd) $ cat files_list /remote/dir/path/to/file: sub-dir1 sub-dir2 sub-dir3 ... /remote/dir/path/to/file/sub-dir1: remote_file1.csv.tgz <blank line 1> /remote/dir/path/to/file/sub-dir2: remote_file2.csv.tgz <blank... (3 Replies)
Discussion started by: dips_ag
3 Replies

6. Shell Programming and Scripting

awk, sed or perl regexp to print values from file

Hello all According to the following file (orignal one contains 200x times the same structure...) I was wondering if someone could help me to print <byte>??</byte> values example, running this script/command like ./script.sh xxapp I would expect as output: 102 116 112 ./script.sh xxapp2... (2 Replies)
Discussion started by: cabrao
2 Replies

7. Shell Programming and Scripting

sed print first line before regexp and all lines after

Hi All I'm trying to extract the line just above a regexp and all lines after this. I'm currently doing this in two steps sed -n -e "/^+---/{g;p;}" -e h oldfile.txt > modified.txt sed -e "1,/^+---/d" -e "/^$/d" oldfile.txt >>modified.txt Sample sometext will be here sometext will be... (3 Replies)
Discussion started by: Celvin VK
3 Replies

8. Shell Programming and Scripting

Print 4th line back from regexp

I'm looking for a way to print the 4th line back from a regular expression. Kind of like the below but it has to be the 4th line before the regexp. Print the line immediately before regexp, but not the line containing the regexp. sed -n '/regexp/{g;1!p;};h' here is an example of logs(i... (11 Replies)
Discussion started by: senormarquez
11 Replies

9. Shell Programming and Scripting

awk regexp to print repetitive pattern

How to use regexp to print out repetitive pattern in awk? $ awk '{print $0, "-\t-\t-\t-\t-\t-\t-\t-\t-\t-\t-\t-"}' output: - - - - - - - - - - - -I tried following which does not give what I want, of course. awk '{print $0, "-\t{11}-"}' output: - ... (10 Replies)
Discussion started by: yifangt
10 Replies

10. UNIX for Beginners Questions & Answers

awk or sed to print the character from the previous line after the regexp match

Hi All, I need to print the characters in the previous line just before the regular expression match Please have a look at the input file as attached I need to match the regular expression ^ with the character of the previous like and also the pin numbers and the output file should be like... (6 Replies)
Discussion started by: kshitij
6 Replies
IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)

Featured Tech Videos

All times are GMT -4. The time now is 11:30 PM.
Unix & Linux Forums Content Copyright 1993-2021. All Rights Reserved.
Privacy Policy