delete lines starting with a pattern Post: 302571064

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Delete lines starting with XX or YY or ZZ or ....

Hi There! My final task for today is to delete lines starting with certain numbers for e.g., my text block is and i want to delete all lines starting with 11 or 17 or 21 I know i can use multiple sed commands like sed '/^11,/d' <filename> sed '/^17,/d' <filename> sed '/^21,/d'...

2. Shell Programming and Scripting

comment/delete a particular pattern starting from second line of the matching pattern

Hi, I have file 1.txt with following entries as shown: 0152364|134444|10.20.30.40|015236433 0233654|122555|10.20.30.50|023365433 ** ** ** In file 2.txt I have the following entries as shown: 0152364|134444|10.20.30.40|015236433 0233654|122555|10.20.30.50|023365433...

3. Shell Programming and Scripting

Concatenate lines between lines starting with a specific pattern

Hi, I have a file such as: --- >contig00001 length=35524 numreads=2944 gACGCCGCGCGCCGCGGCCAGGGCTGGCCCA CAGGCCGCGCGGCGTCGGCTGGCTGAG >contig00002 length=4242 numreads=43423 ATGCCGAAGGTCCGCCTGGGGCTGG CGCCGGGAGCATGTAGCG --- I would like to concatenate the lines not starting with ">"...

4. Shell Programming and Scripting

sed pattern to delete lines containing a pattern, except the first occurance

Hello sed gurus. I am using ksh on Sun and have a file created by concatenating several other files. All files contain header rows. I just need to keep the first occurrence and remove all other header rows. header for file 1111 2222 3333 header for file 1111 2222 3333 header for file...

5. Shell Programming and Scripting

Delete multiple lines starting with a specific pattern

Hi, just tried some script, awk, sed for the last 2 hours and now need help. Let's say I have a huge file of 800,000 lines like this : It's a tedious job to look through it, I'd like to remove those useless lines in it as there's a few thousands : Or to be even more precise : if line1 =...

6. Shell Programming and Scripting

Delete lines starting with these strings

Platform : RHEL 5.8 I have text file called myapplication.log . In this file, I have around 800 lines which start with the followng three strings PWRBRKER-3493 PWRBRKER-7834 SCHEDULER-ERROR How can I delete these lines in one go ?

7. Shell Programming and Scripting

How to delete lines starting with specific string?

Dear all, I would like to delete even lines starting with "N" together with their respective titles which are actually odd lines. Below is the example of input file. I would like to remove line 8 and 12 together with its title line, i.e., line 7 and 11, respectively....

8. UNIX for Dummies Questions & Answers

Grep -v lines starting with pattern 1 and not matching pattern 2

Hi all! Thanks for taking the time to view this! I want to grep out all lines of a file that starts with pattern 1 but also does not match with the second pattern. Example: Drink a soda Eat a banana Eat multiple bananas Drink an apple juice Eat an apple Eat multiple apples I...

9. Shell Programming and Scripting

Delete all lines starting with # character

Tool used : VIM editor that comes with RHEL 7.4 I have a file like below. It has around 300 lines like below. All the lines starting with # are comments. For readability, I removed all lines starting with # from vi (vim editor) using the command :g/^#/d . It seemed to have worked. But, which...

10. Shell Programming and Scripting

Delete all lines except a line starting with string

Shell : bash OS : RHEL 6.8 I have a file like below. $ cat pattern.txt hello txt1 txt2 txt3 some other text txt4 I want to remove all lines in this file except the ones starting with txt . How can I do this ?

LEARN ABOUT NETBSD

schedctl

SCHEDCTL(8)						    BSD System Manager's Manual 					       SCHEDCTL(8)

NAME

     schedctl -- control scheduling of processes and threads

SYNOPSIS

     schedctl [-A cpus] [-C class] [-P pri] [-t lid] -p pid | command

DESCRIPTION

     The schedctl command can be used to control the scheduling of processes and threads.  It also returns information about the current schedul-
     ing parameters of the process or thread.  Only the super-user may change the scheduling parameters.  schedctl can also be used to start a new
     command using the specified parameters.

     Available options:

     -A cpus	Set of the processors on which process or thread should run, that is, affinity.  Processors are defined as numbers (starting from
		zero) and separated by commas.	A value of -1 is used to unset the affinity.

     -C class	Scheduling class (policy), one of:

		SCHED_OTHER   Time-sharing (TS) scheduling policy.  The default policy in NetBSD.

		SCHED_FIFO    First in, first out (FIFO) scheduling policy.

		SCHED_RR      Round-robin scheduling policy.

     -P pri	Priority for the process or thread.  Value should be in the range from SCHED_PRI_MIN (0) to SCHED_PRI_MAX (63).  Setting of prior-
		ity for the process or thread running at SCHED_OTHER policy is not allowed.

     -p pid	The target process which will be affected.  If the process has more than one thread, all of them will be affected.

		If -p is not given, a command to execute must be given on the command line.

     -t lid	Thread in the specified process.  If specified, only this thread in the process will be affected.  May only be specified if -p is
		also given.

EXAMPLES

     Show scheduling information about the process whose ID is ``123'':

	   # schedctl -p 123

     Set the affinity to CPU 0 and CPU 1, policy to SCHED_RR, and priority to 63 for thread whose ID is ``1'' in process whose ID is ``123'':

	   # schedctl -p 123 -t 1 -A 0,1 -C SCHED_RR -P 63

     Run the top(1) command with real-time priority:

	   # schedctl -C SCHED_FIFO top

SEE ALSO

     nice(1), getpriority(2), setpriority(2), psrset(8), renice(8)

HISTORY

     The schedctl command first appeared in NetBSD 5.0.

BSD
								  March 21, 2011							       BSD