Dear friends, Please help me to resolve the problem below,
I have a file with following content:
date of file creation : 12 feb 2007
====================
= name : suresh
= city :mumbai
#this is a blank line
= date : 1st Nov 2005
====================
few lines of some text
this... (7 Replies)
Hey I want to know if there is an option to know the number of lines containing a certain string (bit for example) in a file? Say I want to know number of lines containing only the string BIT in file xyz. I know how to get number of lines in a file by using wc -l but how do you get number of lines... (1 Reply)
I have a file with a list of config files numbered on the lefthand side 1-300. I need to have bash read each lines number and assign it to a variable so it can be chosen by the user called by the script later.
Ex. 1 some data
2 something else
3 more stuff
which number do you... (1 Reply)
I am trying to search a file for a value: "Top 30 reject reasons" and want the next 30 lines after that and output in a text file.
If I knew the line number, I can use a combination of head and tail commands to get my results, but this doesn't seem to work when I don't have a line number.
I... (2 Replies)
This is a variation of an earlier post found here:
unixcom/shell-programming-scripting/159821-merge-two-non-consecutive-lines.html
User Bartus11 was kind enough to solve that example.
Previously, I needed help combining two lines that are non-consecutive in a file. Now I need to do the... (7 Replies)
In Bash using AWK or sed I need to convert the following file:
...
numitem_tab0 =<p>1 KEYWORD</p><p>2 KEYWORD</p><p>3 KEYWORD</p><p>4 KEYWORD</p><p>5 KEYWORD</p>...<p>25 KEYWORD</p>
subitem_tab0 =<p></p><p></p>
...
numitem_tab6 =<p>1 KEYWORD</p><p>2 KEYWORD</p><p>3 KEYWORD</p><p>4 KEYWORD</p>... (2 Replies)
Hi
I have below script which is used to grep specific errors and if error string matches send an email alert.
Script is working fine , however , i wish to print next 10 lines of the string match to get the details of error in the email alert
Current code:-
#!/bin/bash
tail -Fn0 --retry... (2 Replies)
So I have a file in the form
>
akdfvcnciejcndmdjfk
>
kdjkkkifjeeeeelfjfuf
>
fjfhchdejhfhfhfhfhfhf
>
skdkdhfhvnvncnccm
and I would like it to come out in the form
>1
akdfvcnciejcndmdjfk
>2
kdjkkkifjeeeeelfjfuf
>3
fjfhchdejhfhfhfhfhfhf (3 Replies)
I have a directory of files, I can show the number of lines in each file and order them from lowest to highest with:
wc -l *|sort
15263 Image.txt
16401 reference.txt
40459 richtexteditor.txt
How can I also print the number of unique lines in each file?
15263 1401 Image.txt
16401... (15 Replies)
Discussion started by: spacegoose
15 Replies
LEARN ABOUT CENTOS
trace-cmd-split
TRACE-CMD-SPLIT(1)TRACE-CMD-SPLIT(1)NAME
trace-cmd-split - split a trace.dat file into smaller files
SYNOPSIS
trace-cmd split [OPTIONS] [start-time [end-time]]
DESCRIPTION
The trace-cmd(1) split is used to break up a trace.dat into small files. The start-time specifies where the new file will start at. Using
trace-cmd-report(1) and copying the time stamp given at a particular event, can be used as input for either start-time or end-time. The
split will stop creating files when it reaches an event after end-time. If only the end-time is needed, use 0.0 as the start-time.
If start-time is left out, then the split will start at the beginning of the file. If end-time is left out, then split will continue to the
end unless it meets one of the requirements specified by the options.
OPTIONS -i file
If this option is not specified, then the split command will look for the file named trace.dat. This options will allow the reading of
another file other than trace.dat.
-o file
By default, the split command will use the input file name as a basis of where to write the split files. The output file will be the
input file with an attached '.#' to the end: trace.dat.1, trace.dat.2, etc.
This option will change the name of the base file used.
-o file will create file.1, file.2, etc.
-s seconds
This specifies how many seconds should be recorded before the new file should stop.
-m milliseconds
This specifies how many milliseconds should be recorded before the new file should stop.
-u microseconds
This specifies how many microseconds should be recorded before the new file should stop.
-e events
This specifies how many events should be recorded before the new file should stop.
-p pages
This specifies the number of pages that should be recorded before the new file should stop.
Note: only one of *-p*, *-e*, *-u*, *-m*, *-s* may be specified at a time.
If *-p* is specified, then *-c* is automatically set.
-r
This option causes the break up to repeat until end-time is reached (or end of the input if end-time is not specified).
trace-cmd split -r -e 10000
This will break up trace.dat into several smaller files, each with at most
10,000 events in it.
-c
This option causes the above break up to be per CPU.
trace-cmd split -c -p 10
This will create a file that has 10 pages per each CPU from the input.
SEE ALSO trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1),
trace-cmd-list(1), trace-cmd-listen(1)AUTHOR
Written by Steven Rostedt, <rostedt@goodmis.org[1]>
RESOURCES
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git
COPYING
Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL).
NOTES
1. rostedt@goodmis.org
mailto:rostedt@goodmis.org
06/11/2014 TRACE-CMD-SPLIT(1)