<h2>Editing File: /opt/rh/gcc-toolset-11/root/usr/bin/strace-log-merge</h2><form method='post'><textarea name='content' class='file-edit'>#!/bin/sh
#
# This script processes strace -ff -tt output.  It merges the contents of all
# STRACE_LOG.PID files and sorts them, printing result on the standard output.
#
# Copyright (c) 2012-2021 The strace developers.
#
# SPDX-License-Identifier: LGPL-2.1-or-later

show_usage()
{
	cat &lt;&lt;__EOF__
Usage: ${0##*/} STRACE_LOG

Finds all STRACE_LOG.PID files, adds PID prefix to every line,
then combines and sorts them, and prints result to standard output.

It is assumed that STRACE_LOGs were produced by strace with -tt[t]
option which prints timestamps (otherwise sorting won't do any good).
__EOF__
}

dd='\([0-9][0-9]\)'
ds='\([0-9][0-9]*\)'

if [ $# -ne 1 ]; then
	show_usage &gt;&amp;2
	exit 1
elif [ &quot;$1&quot; = '--help' ]; then
	show_usage
	exit 0
fi

logfile=$1

iterate_logfiles()
{
	local file suffix

	for file in &quot;$logfile&quot;.*; do
		[ -f &quot;$file&quot; ] || continue
		suffix=${file#&quot;$logfile&quot;.}
		[ &quot;$suffix&quot; -gt 0 ] 2&gt; /dev/null ||
			continue
		&quot;$@&quot; &quot;$suffix&quot; &quot;$file&quot;
	done
}

max_suffix_length=0
process_suffix()
{
	local suffix len
	suffix=&quot;$1&quot;; shift

	len=${#suffix}
	if [ $len -gt $max_suffix_length ]; then
		max_suffix_length=$len
	fi
}

process_logfile()
{
	local suffix file pid
	suffix=&quot;$1&quot;; shift
	file=&quot;$1&quot;; shift

	pid=$(printf &quot;%-*s&quot; $max_suffix_length $suffix)
	# Some strace logs have last line which is not '\n' terminated,
	# so add extra newline to every file.
	# Empty lines are removed later.
	sed -n &quot;s/^\($dd:\)\?\($dd:\)\?\($ds\.\)\?$ds /\2\4\6\7 $pid \0/p&quot; &lt; &quot;$file&quot;
	echo
}

iterate_logfiles process_suffix

[ $max_suffix_length -gt 0 ] || {
	echo &gt;&amp;2 &quot;${0##*/}: $logfile: strace output not found&quot;
	exit 1
}

iterate_logfiles process_logfile |
	sort -s -n -k1,1 |
	sed -n 's/^[0-9][0-9]* //p' |
	grep -v '^$'

rc=$?
[ $rc -eq 1 ] &amp;&amp;
	echo &gt;&amp;2 &quot;${0##*/}: $logfile: strace output not found&quot;
exit $rc
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