Sponsored Content
Top Forums Shell Programming and Scripting How to get lines with only one occurence of pattern? Post 302988204 by Aia on Wednesday 21st of December 2016 08:43:48 PM
Old 12-21-2016
If all lines contain MODE as shown:
Code:
$ sed -n '/MODE.*MODE/!p' aa

This User Gave Thanks to Aia For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Pattern occurence in a file

How can we find the number of occurence of a specified pattern in a file? This command would be a part of a shell script. (5 Replies)
Discussion started by: videsh77
5 Replies

2. Shell Programming and Scripting

Perl onliner to search the last line with an occurence of a pattern

Hi I need a perl onliner which seaches a line starting with a pattern(last occurence) and display it. similar to grep 'pattern' filename | tail -1 in UNIX Ex: I want to display the line starting with "cool" and which is a last occurence adadfadafadf adfadadf cool dfadfadfadfara... (4 Replies)
Discussion started by: ammu
4 Replies

3. Shell Programming and Scripting

Sed and replacing one occurence of pattern

I would like to use sed to replace one occurence of a pattern in a file. When I use the s/// command it replaces all occurences of the pattern in the file. Should I be using something other than sed? Thanks (6 Replies)
Discussion started by: ss9u
6 Replies

4. Shell Programming and Scripting

How to identify the occurence of a pattern between a unique character?

hi, is it possible to find the number of occurences of a pattern between two paranthesis. for e.g i have a file as below. >>{ >>hi >>GoodMorning >>how are you? >>} >>is it good, >>tell me yes, if it is good In the above file, its clear the occurence of word "Good"... (17 Replies)
Discussion started by: divak
17 Replies

5. Shell Programming and Scripting

Printing the continuous occurence of pattern using awk ?

Hello all, I have a input file like this. input file --------------- abc ab001 + ab002 zca acb ab006 + ab007 caz cba ab003 + ab004 zca bac ab004 - ab005 zac bca ab002 - ab003 cza cba ab005 + ab006 acz cba ab005 ... (5 Replies)
Discussion started by: admax
5 Replies

6. Linux

Problem editting the first occurence of a pattern in the first uncommented line

Hi I have to replace a pattern found in the first uncommented line in a file. The challenge I'm facing is there are several such similar lines but I have to edit only the first uncommented line. Eg: #this is example #/root/xyz:Old_Pattern /root/xyz:Old_Pattern /root/xyz:Old_Pattern ... (10 Replies)
Discussion started by: Stoner008
10 Replies

7. Shell Programming and Scripting

Help with using awk to print pattern/occurence

Hi, Do anybody know how to use awk to count the pattern at specific column? Input file M2A928K 419 ath-miR159a,gma-miR159a-3p,ptc-miR159a 60 miR235a . . Output file M2A928K 419 ath-miR159a,gma-miR159a-3p,ptc-miR159a 60 miR235a 3 . . I plan to count how many "miR" in column 3... (2 Replies)
Discussion started by: cpp_beginner
2 Replies

8. Shell Programming and Scripting

Match pattern and print the line number of occurence using awk

Hi, I have a simple problem but i guess stupid enough to figure it out. i have thousands rows of data. and i need to find match patterns of two columns and print the number of rows. for example: inputfile abd abp 123 abc abc 325 ndc ndc 451 mjk lkj... (3 Replies)
Discussion started by: redse171
3 Replies

9. UNIX for Dummies Questions & Answers

Vi delete line with second occurence of pattern

I have a large file and many lines are duplicated. I'm trying to delete lines with every second occurrence of a pattern. Did tried searching similar question but no luck. I can delete all lines matching pattern with :g/pattern/d but don't want to lose data. Sample pattern to delete... (6 Replies)
Discussion started by: homer4all
6 Replies

10. Shell Programming and Scripting

Extract whole word preceding a specific character pattern with first occurence of the pattern

Hello. Here is a file contents : declare -Ax NEW_FORCE_IGNORE_ARRAY=(="§" ="§" ="§" ="§" ="§" .................. ="§"Here is a pattern =I want to extract 'NEW_FORCE_IGNORE_ARRAY' which is the whole word before the first occurrence of pattern '=' Is there a better solution than mine :... (3 Replies)
Discussion started by: jcdole
3 Replies
TEMPFILE(1)						      General Commands Manual						       TEMPFILE(1)

NAME
tempfile - create a temporary file in a safe manner SYNOPSIS
tempfile [-d DIR] [-p STRING] [-s STRING] [-m MODE] [-n FILE] [--directory=DIR] [--prefix=STRING] [--suffix=STRING] [--mode=MODE] [--name=FILE] [--help] [--version] DESCRIPTION
tempfile creates a temporary file in a safe manner. It uses tempnam(3) to choose the name and opens it with O_RDWR | O_CREAT | O_EXCL. The filename is printed on standard output. See tempnam(3) for the actual steps involved in directory selection. The directory in which to create the file might be searched for in this order (but refer to tempnam(3) for authoritative answers): a) In case the environment variable TMPDIR exists and contains the name of an appropriate directory, that is used. b) Otherwise, if the --directory argument is specified and appropriate, it is used. c) Otherwise, P_tmpdir (as defined in <stdio.h>) is used when appropriate. d) Finally an implementation-defined directory (/tmp) may be used. OPTIONS
-d, --directory DIR Place the file in DIR. -m, --mode MODE Open the file with MODE instead of 0600. -n, --name FILE Use FILE for the name instead of tempnam(3). The options -d, -p, and -s are ignored if this option is given. -p, --prefix STRING Use up to five letters of STRING to generate the name. -s, --suffix STRING Generate the file with STRING as the suffix. --help Print a usage message on standard output and exit successfully. --version Print version information on standard output and exit successfully. RETURN VALUES
An exit status of 0 means the temporary file was created successfully. Any other exit status indicates an error. BUGS
Exclusive creation is not guaranteed when creating files on NFS partitions. tempfile is deprecated; you should use mktemp(1) instead. EXAMPLE
#!/bin/sh #[...] t=$(tempfile) || exit trap "rm -f -- '$t'" EXIT #[...] rm -f -- "$t" trap - EXIT exit SEE ALSO
tempnam(3), mktemp(1) Debian 30 May 2011 TEMPFILE(1)
All times are GMT -4. The time now is 09:24 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy