Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Delete patterns matching
Top Forums Shell Programming and Scripting Delete patterns matching Post 303004015 by rbatte1 on Monday 25th of September 2017 08:09:48 AM
Old 09-25-2017
When you say "starting with" I don't see any lines that match that criteria because nearly all the lines have leading spaces. Do you really mean that you want to drop all lines that have the first non-blank/first word as those in your list?

What's wrong with something like grep -Ev "Cond1|Cond2|Cond3....." infile > outfile?

The conditions would be expressions to describe what you need to exclude. The opposite could be simpler, i.e. use grep to select only the lines you do want?



Robin
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

matching 3 patterns in shell script

IN a file I need to check for 3 patterns if all the 3 patterns are in the file. I need to send out an email. All this needs to be done in korn shell script. Please advise. (1 Reply)
Discussion started by: saibsk
1 Replies

2. Shell Programming and Scripting

removing certain paragraphs for matching patterns

Hi, I have a log file which might have certain paragraphs. Switch not possible Error code 1234 Process number 678 Log not available Error code 567 Process number 874 ..... ...... ...... Now I create an exception file like this. cat text.exp Error code 1234 Process number 874 (7 Replies)
Discussion started by: kaushys
7 Replies

3. Shell Programming and Scripting

AWK: matching patterns in 2 different files

In a directory, there are two different file extensions (*.txt and *.xyz) having similar names of numerical strings (*). The (*.txt) contains 5000 multiple files and the (*.xyz) also contains 5000 multiple files. Each of the files has around 4000 rows and 8 columns, with several unique string... (5 Replies)
Discussion started by: asanjuan
5 Replies

4. Shell Programming and Scripting

Matching patterns

I have a file name in $f. If $f has "-" at the beginning, or "=", or does not have extension ".ry" or ".xt" or ".dat" then cerr would not be empty. Tried the following but having some problems. set cerr = `echo $f | awk '/^-|=|!.ry|!.xt|!.dat/'` (4 Replies)
Discussion started by: kristinu
4 Replies

5. Shell Programming and Scripting

print lines between 2 matching patterns

Hi Guys, I have file like below, I want to print all lines between test1231233 to its 10 occurrence(till line 41) test1231233 qwe qwe qweq123 test1231233 qwe qwe qweq23 test1231233 qwe qwe qweq123 test1231233 qwe qwe qweq123131 (3 Replies)
Discussion started by: jagnikam
3 Replies

6. UNIX for Dummies Questions & Answers

Search and extract matching patterns

%%%%% (9 Replies)
Discussion started by: lucasvs
9 Replies

7. UNIX for Dummies Questions & Answers

Matching two patterns in the consecutive lines

Hi Experts I need to match 2 patterns consecutively and display 25 lines after that. 1st one - Error 2nd one - End string ( comes along with the pattern one) 3rd one - error Logic grep "ERROR OCCURRED :" trace.log | awk -v "ES=:" -v "SS=java.lang.NullPointerException" '{ if($NF ~... (8 Replies)
Discussion started by: senthil.ak
8 Replies

8. Shell Programming and Scripting

Finding matching patterns in two files

Hi, I have requirement to find the matching patterns of two files in Unix. One file is the log file and the other is the error list file. If any pattern in the log file matches the list of errors in the error list file, then I would need to find the counts of the match. For example, ... (5 Replies)
Discussion started by: Bobby_2000
5 Replies

9. Shell Programming and Scripting

Find files not matching multiple patterns and then delete anything older than 10 days

Hi, I have multiple files in my log folder. e.g: a_m1.log b_1.log c_1.log d_1.log b_2.log c_2.log d_2.log e_m1.log a_m2.log e_m2.log I need to keep latest 10 instances of each file. I can write multiple find commands but looking if it is possible in one line. m file are monthly... (4 Replies)
Discussion started by: wahi80
4 Replies

10. Shell Programming and Scripting

Extended grep not matching some patterns

i have a file where the hostnames and variables are in same line in below format, am able extract some part variables while otherlike subscriptions and handler is missing. can you please correct me if grep is able to perform this ? cat /tmp/test localhost subscriptions='' handler="genie"... (14 Replies)
Discussion started by: rakeshkumar
14 Replies

LEARN ABOUT CENTOS

pam_tty_audit

PAM_TTY_AUDIT(8)						 Linux-PAM Manual						  PAM_TTY_AUDIT(8)

NAME

       pam_tty_audit - Enable or disable TTY auditing for specified users

SYNOPSIS

       pam_tty_audit.so [disable=patterns] [enable=patterns]

DESCRIPTION

       The pam_tty_audit PAM module is used to enable or disable TTY auditing. By default, the kernel does not audit input on any TTY.

OPTIONS

       disable=patterns
	   For each user matching one of comma-separated glob patterns, disable TTY auditing. This overrides any previous enable option matching
	   the same user name on the command line.

       enable=patterns
	   For each user matching one of comma-separated glob patterns, enable TTY auditing. This overrides any previous disable option matching
	   the same user name on the command line.

       open_only
	   Set the TTY audit flag when opening the session, but do not restore it when closing the session. Using this option is necessary for
	   some services that don't fork() to run the authenticated session, such as sudo.

       log_passwd
	   Log keystrokes when ECHO mode is off but ICANON mode is active. This is the mode in which the tty is placed during password entry. By
	   default, passwords are not logged. This option may not be available on older kernels (3.9?).

MODULE TYPES PROVIDED

       Only the session type is supported.

RETURN VALUES

       PAM_SESSION_ERR
	   Error reading or modifying the TTY audit flag. See the system log for more details.

       PAM_SUCCESS
	   Success.

NOTES

       When TTY auditing is enabled, it is inherited by all processes started by that user. In particular, daemons restarted by an user will still
       have TTY auditing enabled, and audit TTY input even by other users unless auditing for these users is explicitly disabled. Therefore, it is
       recommended to use disable=* as the first option for most daemons using PAM.

       To view the data that was logged by the kernel to audit use the command aureport --tty.

EXAMPLES

       Audit all administrative actions.

	   session   required pam_tty_audit.so disable=* enable=root

SEE ALSO

       aureport(8), pam.conf(5), pam.d(5), pam(8)

AUTHOR

       pam_tty_audit was written by Miloslav Trma <mitr@redhat.com>. The log_passwd option was added by Richard Guy Briggs <rgb@redhat.com>.

Linux-PAM Manual						    09/04/2013							  PAM_TTY_AUDIT(8)
All times are GMT -4. The time now is 10:57 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy