grep second instance of same string Post: 302560673

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Hi. In thread https://www.unix.com/shell-programming-and-scripting/267833-grouping-counting.html rovf and I had a mini-discussion on grep and awk. Here is a demo script that compares the awk and grep approaches for this single problem: #!/usr/bin/env bash # @(#) s2 Demonstrate group...

LEARN ABOUT OSX

syscallbypid.d

syscallbypid.d(1m)						   USER COMMANDS						syscallbypid.d(1m)

NAME

       syscallbypid.d - syscalls by process ID. Uses DTrace.

SYNOPSIS

       syscallbypid.d

DESCRIPTION

       This  reports  the  number  of  each  type of system call made by PID.  This is useful to identify which process is causing the most system
       calls.

       This is based on a script from DExplorer.

       Since this uses DTrace, only users with root privileges can run this command.

EXAMPLES

       This samples until Ctrl-C is hit.
	      # syscallbypid.d

FIELDS

       PID    process ID

       CMD    process name

       SYSCALL
	      system call name

       COUNT  number of system calls made in this sample

DOCUMENTATION

       See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver-
       bose descriptions explaining the output.

EXIT

       syscallbypid.d will sample until Ctrl-C is hit.

AUTHOR

       Brendan Gregg [Sydney, Australia]

SEE ALSO

       procsystime(1M), dtrace(1M), truss(1)

version 1.00							   Jun 28, 2005 						syscallbypid.d(1m)