Unless you also want to delete files in subdirectories of your current directory, using find to get the list of files with names ending in .trc is grossly inefficient compared to ls *.trc. Unless you're on a system with a small value for ARG_MAX, you can skip using xargs as well using:
The standards allow ARG_MAX to be as small as 4096, but on OS X it is 262144. You can find the value on your system using:
If the value returned is likely to be smaller than the number of bytes needed to hold the names of the files you'll be removing plus any environment variables you're exporting, you'll need to keep the xargs element of the pipeline rather than using the above form of command substitution.
i want to run few c object files one after another in one command. Can i write a acript for that. I'm using Sun Solaris.
for example
./prog < input1 >output1 &
./prog <input2 >output2 &
i want the first to finish before starting the nest one and run them in the back ground
thanks.... (5 Replies)
I am trying to make a script to convert drg files to wav and so far i have this
#!/bin/bash
drg2sbg "$*" -o "$*".sbg
sbagen -Wo "/home/nick/Desktop/I-Doser Wave Files/"$*"" "$*".sbg
rm "$*".sbg
cd "/home/nick/Desktop/I-Doser Wave Files"
rename 's/\.drg$/\.wav/' *.drg
exit
the drg2sbg and... (2 Replies)
Hi experts
I want the proper argument to the grep command so that I need to skip the first few lines(say first 10 lines) and print all the remaining instances of the grep output.
I tried to use grep -m 10 "search text" file*. But this gives the first 10 instances(lines) of the search string.... (7 Replies)
Hello,
I have a script that contains the command "whois 1.2.3.4"
Sometimes this command takes far too long to produce any output and as a result the rest of the script is not executed.
Can anyone suggest a method so that if no output is produced after say 2 seconds the script skips that... (2 Replies)
hi,
I have installed ACL(access control list) in my ubuntu box in order to know which all are the users having permissions to read and write the files;
If u run the command like;
$getfacl /root/
It will give following output:
# file: root/
# owner: root
# group: root
user::rwx... (2 Replies)
Hi All,
I have some 80,000 files in a directory which I need to rename. Below is the command which I am currently running and it seems, it is taking fore ever to run this command. This command seems too slow. Is there any way to speed up the command. I have have GNU Parallel installed on my... (6 Replies)
Hi,
I want to copy data from one directory to another in csh script. But in that i want to skip certain types of file. How can i do that.
Currently i am copying all the files as mentioned below..
foreach d ( $TEST_PATH/*)
cp -R $d $PWD
end
now i want to skip files... (3 Replies)
Hi all,
i'm trying to configure a script that will find and gzip the searched files,
this is easy enough,
find /var/log/myfolder/*.log -type f -mtime +1 -exec gzip {} \;
cd /var/log/myfolder/
mv *gz myzipped_folder/
but what it would be very handy is to skip the files in use,because tomcat... (13 Replies)
Friends,
I have 1000 line like below
#formate Test.server.e01=http://111.22.33.23/
#test_server_west
Test.server.w01=http://112.123.123.22/
Test.server.w02=http://113.143.123.22/
Test.server.w03=http://112.183.123.22/
#test_server_east
Test.server.e01=http://115.123.123.22/... (6 Replies)
Hi Guys,
I got below error while trying to install
yum localinstall libstdc++-4.4.7-3.el6.i686.rpm
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to... (1 Reply)
Discussion started by: heman96
1 Replies
LEARN ABOUT DEBIAN
tau_merge
TAU_MERGE(1) Tools TAU_MERGE(1)NAME
tau_merge - combine multiple node and or thread TAU tracefiles into a merged tracefile
SYNOPSIS
tau_merge [-a] [-r] [-n] [-e eventfile_list] [-m output_eventfile] {tracefile_list} [{output_tracefile} { - }]
DESCRIPTION
tau_merge is generated when TAU is configured with the -TRACE option.
This tool assembles a set of tau trace and event files from multiple multiple nodes or threads across a program's execution into a single
unified trace file. Many TAU trace file tools operate on merged trace files.
Minimally, tau_merge must be invoked with a list of unmerged trace files followed by the desired name of the merged trace file or the -
flag to send the output to the standard out. Typically the list can be designated by giving the shared name of the trace files to be merged
followed by desired range of thread or node designators in brackets or the wild card character '*' to encompass variable thread and node
designations in the filename (trace.A.B.C.trc where A, B and C are the node, context and thread numbers respectively). For example
tautrace.*.trc would represent all tracefiles in a given directory while tautrace.[0-5].0.0.trc would represent the tracefiles of nodes 0
through 5 with context 0 and thread 0.
tau_merge will generate the specified merged trace file and an event definition file, tau.edf by default.
The event definition file can be given an alternative name by using the '-m' flag followed by the desired filename. A list of event
definition files to be merged can be designated explicitly by using the '-e' flag followed by a list of unmerged .edf files, specified in
the same manner as the trace file list.
If computational resources are insufficient to merge all trace and event files simultaneously the process may be undertaken hierarchically.
Corresponding subsets of the tracefiles and eventfiles may be merged in sequence to produce a smaller set of files that can then be to
merged into a singular fully merged tracefile and eventfile. E.g. for a 100 node trace, trace sets 1-10, 11-20, ..., 91-100 could be merged
into traces 1a, 2a, ..., 10a. Then 1a-10a could be merged to create a fully merged tracefile.
OPTIONS -e eventfile_list explicitly define the eventfiles to be merged
-m output_eventfile explicitly name the merged eventfile to be created
- send the merged tracefile to the standard out
-a adjust earliest timestamp time to zero
-r do not reassemble long events
-n do not block waiting for new events. By default tau_merge will block and wait for new events to be appended if a tracefile is
incomplete. This command allows offline merging of (potentially) incomplete tracefiles.
EXAMPLES
To merge all TAU tracefiles into app.trc and produce a merged tau.edf eventfile:
tau_merge *.trc app.trc
To merge all eventfiles 0-255 into ev0_255merged.edf and TAU tracefiles for nodes 0-255 into the standard out:
tau_merge -e events.[0-255].edf -m ev0_255merged.edf
tautrace.[0-255].*.trc -
To merge eventfiles 0, 5 and seven info ev057.edf and tau tracefiles for nodes 0, 5 and 7 with context and thread 0 into app.trc:
tau_merge -e events.0.edf events.5.edf events.7.edf -m ev057.edf
tautrace.0.0.0.trc tautrace.5.0.0.trc tautrace.7.0.0.trc app.trc
SEE ALSO
tau_convert
tau2profile
tau2vtf
tau2elg
tau2slog2
12/22/2005 TAU_MERGE(1)