| #!/bin/sh |
| |
| show_usage() |
| { |
| cat <<__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__ |
| } |
| |
| if [ $# -ne 1 ]; then |
| show_usage >&2 |
| exit 1 |
| elif [ "$1" = '--help' ]; then |
| show_usage |
| exit 0 |
| fi |
| |
| logfile=$1 |
| |
| for file in "$logfile".*; do |
| [ -f "$file" ] || continue |
| suffix=${file#$logfile.} |
| [ "$suffix" -gt 0 ] 2> /dev/null || |
| continue |
| pid=$(printf "%-5s" $suffix) |
| # Some strace logs have last line which is not '\n' terminated, |
| # so add extra newline to every file. |
| # grep -v '^$' removes empty lines which may result. |
| sed "s/^/$pid /" < "$file" |
| echo |
| done \ |
| | sort -s -k2,2 | grep -v '^$' |
| |
| rc=$? |
| [ $rc -eq 1 ] && |
| echo >&2 "${0##*/}: $logfile: strace output not found" |
| exit $rc |