My PID $
Child PID !
echo $$
startsome &
ChildPID=$!
# wait children = done the job
wait $ChildPID
PID value is good ex. to use unique tmpfile
tmpf="/var/tmp/$$.tmp"
...
rm -f "$tmpf" 2>/dev/null
or timestamp:
Code:
stamp="$( date '+%Y%m%d%H%M%S' ).$$"
If you like to do tmp remove automatic on exit, then you must catch the exit signal
Code:
tmpf="/var/tmp/$$.tmp"
cleantmp()
{
echo "cleaning tmp files ..."
rm -f "$tmpf" 2>/dev/null
}
#main
trap 'cleantmp' EXIT
do_your_job
use_tmpf "$tmpf"
# on exit your tmp file is removed, if process is not stopped using signal 9 (=and I mean it).
Is there any build in command in unix to kill all the child process for a given process ID ? If any one has script or command, please let me know.
Thanks
Sanjay (4 Replies)
Hi,
Can anybody solve this query?
A parent process forks 2 child processes. How does the child process know it's PID without the parent process sending it.
Apart from the "ps-ef" option, what other options are there if any? (2 Replies)
question: for the below program
i just printed the value for pid, child pid and parent pid
why does it give me 6 values? i assume ppid is 28086
but can't figure out why there are 5 values printed instead of just two!
can someone comment on that!
#include<stdio.h>
#define DIM 8
int... (3 Replies)
This is not the same as a few of the other posted items dealing with sub-process pids (that I saw anyway).
If zot contains:
echo "main mypid: $$ - lastpid: $!"
(
echo "block mypid: $$ - lastpid: $! - ppid: $PPID"
ps -ef > xxx
sleep 5
echo "block mypid: $$ - lastpid: $! - ppid:... (6 Replies)
I am using ZSH shell in Linux.
I am calling a child program in background mode parallely (say 2-3 threads). I have problem in handling the temporary files of these child programs since the temp file names are unique for all the child process.
To distinguish i want to use the pid in the temp... (3 Replies)
I have a process that copies files from a main storage server to main other servers. We are attempting to speed up the processing and have thought that the best method would be to use concurrent file copying.
What was suggested is that we change from using a simple RCP and waiting for it to... (3 Replies)
Hi all,
I'm new in programming, but want to start writing a simple GUI for linux console application,say, wget.(for educational purpose :) ).
The question is:
how to start child process from C++ code and then start capture messages from its stdout?
Thanks in advance. (2 Replies)
Hi ,
My problem is that I am not able to list all process id of any process.
If you see pstree command it shows many process id under https. But if I run ps command its not listing all the process id for httpd.
It is just listing the PPID and immediate child process id only. I... (4 Replies)
HI
Am trying to get child process id for a PID using ksh..
ps -ef | grep xntpd
root 3342472 2228308 0 12:17:40 - 0:00 /usr/sbin/xntpd
root 4522024 6488316 0 12:18:56 pts/0 0:00 grep xntpd
root 6291614 3342472 0 12:17:40 - 0:00 /usr/sbin/xntpd
Here now i... (1 Reply)
Discussion started by: Priya Amaresh
1 Replies
LEARN ABOUT DEBIAN
xfs_estimate
xfs_estimate(8) System Manager's Manual xfs_estimate(8)NAME
xfs_estimate - estimate the space that an XFS filesystem will take
SYNOPSIS
xfs_estimate [ -h? ] [ -b blocksize ] [ -i logsize ]
[ -e logsize ] [ -v ] directory ...
DESCRIPTION
For each directory argument, xfs_estimate estimates the space that directory would take if it were copied to an XFS filesystem. xfs_esti-
mate does not cross mount points. The following definitions are used:
KB = *1024
MB = *1024*1024
GB = *1024*1024*1024
The xfs_estimate options are:
-b blocksize
Use blocksize instead of the default blocksize of 4096 bytes. The modifier k can be used after the number to indicate multiplica-
tion by 1024. For example,
xfs_estimate -b 64k /
requests an estimate of the space required by the directory / on an XFS filesystem using a blocksize of 64K (65536) bytes.
-v Display more information, formatted.
-h Display usage message.
-? Display usage message.
-i, -e logsize
Use logsize instead of the default log size of 1000 blocks. -i refers to an internal log, while -e refers to an external log. The
modifiers k or m can be used after the number to indicate multiplication by 1024 or 1048576, respectively.
For example,
xfs_estimate -i 1m /
requests an estimate of the space required by the directory / on an XFS filesystem using an internal log of 1 megabyte.
EXAMPLES
% xfs_estimate -e 10m /var/tmp
/var/tmp will take about 4.2 megabytes
with the external log using 2560 blocks or about 10.0 megabytes
% xfs_estimate -v -e 10m /var/tmp
directory bsize blocks megabytes logsize
/var/tmp 4096 792 4.0MB 10485760
% xfs_estimate -v /var/tmp
directory bsize blocks megabytes logsize
/var/tmp 4096 3352 14.0MB 10485760
% xfs_estimate /var/tmp
/var/tmp will take about 14.0 megabytes
xfs_estimate(8)