Sponsored Content
Top Forums Shell Programming and Scripting Egrep patterns in a file and limit number of matches to print for each pattern match Post 302998964 by drl on Saturday 10th of June 2017 12:08:31 PM
Old 06-10-2017
Hi, ananan.

Welcome to the forum.
Code:
To get the best advice on transforming, extracting, manipulating data,
please supply your computing environment and problem context:

1. OS and shell, preferably with versions
2. Representative sample input
3. Output desired that corresponds to the input
4. Logic to obtain output from input
5. Attempts at a solution that you have tried, including output

Post code and data inside CODE tags.

If you need to use or to avoid certain tools, you may need
to explain why, especially if your post count is low. Once the
problem is identified, responders often can choose the most
appropriate tool, not necessarily the one you might want.

These guidelines allow responders to create solutions without
ambiguity and to avoid creating sample data sets.

Do you desire a different count for each different pattern?

What should happen if more than one pattern match occurs on the same line?

What should happen if one pattern matches several times on one line?

Is the file short enough so that egrep could be run a number of times on the file?

Best wishes ... cheers, drl
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Sed to delete exactly match pattern and print them in other file

Hi there, I need help about using sed. Iam using sed to delete and print lines that match the port number as listed in sedfile. I am using -d and -p command for delete match port and print them respectively. However, the output is not synchonize where the total deleted lines is not similar with... (3 Replies)
Discussion started by: new_buddy
3 Replies

2. Shell Programming and Scripting

print lines which match multiple patterns

Hi, I have a text file as follows: 11:38:11.054 run1_rdseq avg_2-5 999988.0000 1024.0000 11:50:52.053 run3_rdrand 999988.0000 1135.0 128.0417 11:53:18.050 run4_wrrand avg_2-5 999988.0000 8180.5833 11:55:42.051 run4_wrrand avg_2-5 999988.0000 213.8333 11:55:06.053... (2 Replies)
Discussion started by: annazpereira
2 Replies

3. Shell Programming and Scripting

Match multiple patterns in a file and then print their respective next line

Dear all, I need to search multiple patterns and then I need to print their respective next lines. For an example, in the below table, I will look for 3 different patterns : 1) # ATC_Codes: 2) # Generic_Name: 3) # Drug_Target_1_Gene_Name: #BEGIN_DRUGCARD DB00001 # AHFS_Codes:... (3 Replies)
Discussion started by: AshwaniSharma09
3 Replies

4. UNIX for Dummies Questions & Answers

extracting lates pattern match from multiple matches in log

Hi, I have a large, multiline log file. I have used pcregrep to extract all entries in that log that match a particular pattern - where that pattern spans multiple lines. However, because the log file is large, and these entries occur every few minutes, I still output a very large amount... (6 Replies)
Discussion started by: dbrb2
6 Replies

5. Shell Programming and Scripting

grep - match files containing minimum number of pattern matches

I want to search a bunch of files and list only those containing a minimum number of pattern matches. So if I want to identify files containing 3 (or more) instances of the pattern "said:" and I have file1 that contains the lines: He said: She said: and file2 that contains the lines: He... (3 Replies)
Discussion started by: stumpyuk
3 Replies

6. Shell Programming and Scripting

Match 2 different patterns and print the lines

Hi, i have been trying to extract multiple lines based on two different patterns as below:- file1 @jkm|kdo|aas012|192.2.3.1 blablbalablablkabblablabla sjfdsakfjladfjefhaghfagfkafagkjsghfalhfk fhajkhfadjkhfalhflaffajkgfajkghfajkhgfkf jahfjkhflkhalfdhfwearhahfl @jkm|sdf|wud08q|168.2.1.3... (8 Replies)
Discussion started by: redse171
8 Replies

7. 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

8. Shell Programming and Scripting

How to print line if two lines above it matches patterns.?

Hi, I could only find examples to print line before/after a match, but I'd need to print line after two separate lines matching. E.g.: From the below log entry, I would need to print out the 1234. This is from a huge log file, that has a lot of entries with "CLIENT" and "No" entries (+ other... (3 Replies)
Discussion started by: Juha
3 Replies

9. Shell Programming and Scripting

awk to print match or non-match and select fields/patterns for non-matches

In the awk below I am trying to output those lines that Match between file1 and file2, those Missing in file1, and those missing in file2. Using each $1,$2,$4,$5 value as a key to match on, that is if those 4 fields are found in both files the match, but if those 4 fields are not found then missing... (0 Replies)
Discussion started by: cmccabe
0 Replies

10. Shell Programming and Scripting

Match text to lines in a file, iterate backwards until text or text substring matches, print to file

hi all, trying this using shell/bash with sed/awk/grep I have two files, one containing one column, the other containing multiple columns (comma delimited). file1.txt abc12345 def12345 ghi54321 ... file2.txt abc1,text1,texta abc,text2,textb def123,text3,textc gh,text4,textd... (6 Replies)
Discussion started by: shogun1970
6 Replies
EvmEventNameMatch(3)					     Library Functions Manual					      EvmEventNameMatch(3)

NAME
EvmEventNameMatch, EvmEventNameMatchStr - Match event name LIBRARY
EVM Support Library (libevm.so, libevm.a) SYNOPSIS
#include <evm/evm.h> EvmStatus_t EvmEventNameMatch( const char *pattern, EvmEvent_t event, EvmBoolean_t *match); EvmStatus_t EvmEventNameMatchStr( const char *pattern, const char *candidate, EvmBoolean_t *match); OPERANDS
The event name pattern sought. The pattern may be any valid event name string. It may include wildcard characters in place of any compo- nent. The event containing the event name to be compared against the pattern. The result of the match. This parameter is set to EvmTRUE if the name matches the pattern, and to EvmFALSE if it does not. A character string to be matched against the pattern DESCRIPTION
Because special matching rules apply when deciding whether a candidate event name matches a known name, the EVM name matching functions should be used for matching purposes, rather than the C string comparison functions (memcpm(), strcmp()) . The EVM functions match an event name against a supplied pattern, ignoring any trailing appended components in the candidate name, and correctly matching wildcard characters. The EvmEventNameMatch function takes an event and an event name pattern as input, and returns an indication of whether the event contains a name which matches the pattern in the match output argument. The pattern may be any valid event name string, and may also include wildcard characters in place of any component. A wildcard * in the pattern matches zero or more name components. A ? matches exactly one compo- nent. A match occurs if the event name matches all components indicated by the pattern, even if the name has additional trailing elements. The EvmEventNameMatchStr function performs the same check as EvmEventNameMatch, but takes a character string as the candidate event name, rather than extracting it from a supplied event. Both functions set the match output argument to EvmTRUE if the name matches the pattern, and to EvmFALSE if it does not. RETURN VALUES
The comparison was successful. The value of the match parameter indicates whether the name matches the pattern. The supplied pattern con- tains invalid characters. The supplied event does not contain a name. ERRORS
None FILES
None SEE ALSO
Routines: memccpy(3), strcat(3) Event Management: EVM(5) EVM Events: EvmEvent(5) Programmer's Guide delim off EvmEventNameMatch(3)
All times are GMT -4. The time now is 08:43 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy