Hi All,
I am having trouble through, I am reading the input from tab delimited file containing several records,
e.g.
line1 field1 field2 field3 so on..
line2 field1 field2 field3 so on..
..
..
on the basis of certain fields for each record in input file, I have to retrieve... (1 Reply)
Ok; here is the code
INCREMENT=0 #Final Count
MATCH=0 #Treated as a Boolean
declare -a LINEFOUR #Declared Array
for FILE in $DIR; do # DIR was declared earlier
test -f $FILE && (
TEMP=(sed -n '4p' $FILE) #How do I assign the fourth line of the file to TEMP? This doesn't... (1 Reply)
Hi,
I have tried to find some sort of previous similar thread on this but not quite close to what I want to achieve.
Basically I have two class of data in my file..e.g
1,1,1,1,1,2,yes
1,2,3,4,5,5,yes
2,3,4,5,5,5,no
1,2,3,4,4,2,no
1,1,3,4,5,2,no
I wanted to read the "yes" entry to an... (5 Replies)
I am trying to read input for a C program (that expects input from the user) from a file using the shell command:
progname < filename
but it seems that the program considers the char '<'
as the first input, hence causing an "error" in my program.
I checked it with another program and it... (2 Replies)
Hi guys,
I am new to AWK and unix scripting. Please see below my problem and let me know if anyone you can help.
I have 2 input files (example given below)
Input file 2 is a standard file (it will not change) and we have to get the name (second column after comma) from it and append it... (5 Replies)
All,
I am trying to figure out a script to run in windows that will allow me to match on First column in file1 to 8th Column in File2 then
Insert file1 column2 to file2 column4 then create a new file.
File1:
12345 Sam
12346 Bob
12347 Bill
File2:... (1 Reply)
hi all, i have a data file that contains 2 columns, names and numbers. i need to read names in to a an array call names and numbers in to an array call numbers. i also have # and blank lines in my dat file and i need to skip those when i read the dat file. how do i do this? btw, my column 1 and... (3 Replies)
Hello everybody!
I am quit new here and hope you can help me.
Using an awk script I am trying to extract data from several files. The structure of the input files is as follows:
TimeStep parameter1 parameter2 parameter3 parameter4
e.g.
1 X Y Z L
1 D H Z I
1 H Y E W
2 D H G F
2 R... (2 Replies)
I have a process that requires me to read data from huge log files and find the most recent entry on a per-user basis. The number of users may fluctuate wildly month to month, so I can't code for it with names or a set number of variables to capture the data, and the files are large so I don't... (7 Replies)
Hello,
I am running under ubuntu1 14.04 and I have a script which is sending given process names to vanish so that I'd see less output when I run most popular tools like top etc in terminal window. In usual method it works.
Whenever I restart the system, I have to enter the same data from... (2 Replies)
Discussion started by: baris35
2 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)