Error in finding the PID by grep and assigning to a variable Post: 302739409

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LEARN ABOUT FREEBSD

dtruss

DTRUSS(1)						    BSD General Commands Manual 						 DTRUSS(1)

NAME

     dtruss -- Trace system calls and userland stacks using DTrace

SYNOPSIS

     dtruss [-acdefholLs] [-t syscall] [-n name -p pid command]

DESCRIPTION

     The dtruss utility traces system calls and (optionally) userland stack traces for the specified programs.

     The following options are available:

     -p pid  Trace the process with PID pid.

     -n name
	     Trace the process with name name.

     -t syscall
	     Trace the specified syscall only.

     -a      Print all details.

     -c      Print syscall counts.

     -d      Print relative times (in microseconds).

     -e      Print elapsed times (in microseconds).

     -f      Follow the children processes.

     -l      Force printing PID / TID.

     -o      Print time spent on CPU.

     -s      Print userland stack backtraces.

     -L      Don't print PID / TID.

     -b bufsize
	     Specify the DTrace buffer size.

EXIT STATUS

     The dtruss utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     dtrace(1)

HISTORY

     The dtruss utility comes from the DTraceToolkit and was first imported into FreeBSD 9.0.

AUTHORS

     Brendan Gregg

BSD
								  August 26, 2010							       BSD

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

finding out the pid for a busy text file

Discussion started by: jxh461

2. UNIX for Dummies Questions & Answers

Need to get pid of a process and have to store the pid in a variable

Discussion started by: samudha

3. Shell Programming and Scripting

Problem with assigning output of grep + awk to a variable

Discussion started by: meheretoknow

4. UNIX for Dummies Questions & Answers

number of occurence using grep -c then assigning it to a variable

Discussion started by: khestoi