Millisecond resolution tic / toc timer pair utility for linux terminal. Supports id-based tic/toc pairs.

ttic.sh

#!/bin/bash

function showHelp {
version=0.0.1
versionDate="2014-07-07"

echo "$0 - tic/toc timer pair

Usage: $0 [id]              Stores initial time (w/optional id marker)
       $0 [-u|--unique]     Creates and returns unique id

       Using optional ID is recommended, as it allows simulatenous usage.

Notes:
       ttoc [id]  (displays delta time since ttic was called)

       Temporary timer file is stored at /tmp/.ttic.[ID.]time

Example
       # Global timer (not recommended)
       ttic && (do work) && ttoc

       # Using FooBar as id
       ttic FooBar && (do work) && ttoc FooBar

       # Using a randomly generated id
       id=\$(ttic -u) && (do work) && ttoc \$id


Mainted at: https://gist.github.com/swarminglogic/87adb0bd0850d76ba09f
Author:     Roald Fernandez (github@swarminglogic.com)
Version:    $version ($versionDate)
License:    CC-zero (public domain)
"
    exit $1
}


while test $# -gt 0; do
    case "$1" in
        -h|--help)
            showHelp 0
            ;;
        -u|--unique)
            shift
            hasId=yes
            isGenerated=yes
            id=$(tr -dc "[:alpha:]" < /dev/urandom | head -c 8)
            ;;
        *)
            hasId=yes
            id=$1
            shift
            break
            ;;
    esac
done

if [[ $hasId ]] ; then
    tmpfile=/tmp/.ttic.${id}.time
    if [[ $isGenerated ]] ; then
        echo $id
    fi
else
    tmpfile=/tmp/.ttic.time
fi

echo $(($(date +%s%N)/1000000)) > $tmpfile

ttoc.sh

#!/bin/bash

function showHelp {
version=0.0.1
versionDate="2014-07-07"

echo "$0 - tic/toc timer pair

Usage: $0 [id]
       Stores initial time (w/optional id marker)

Notes:
       ttic [id] (used for marking initial time)

       Temporary timer file is stored at /tmp/.ttic.[ID.]time


Example
       # Global timer (not recommended)
       ttic && (do work) && ttoc

       # Using FooBar as id
       ttic FooBar && (do work) && ttoc FooBar

       # Using a randomly generated id
       id=\$(ttic -u) && (do work) && ttoc \$id


Mainted at: https://gist.github.com/swarminglogic/87adb0bd0850d76ba09f
Author:     Roald Fernandez (github@swarminglogic.com)
Version:    $version ($versionDate)
License:    CC-zero (public domain)
"
    exit $1
}


while test $# -gt 0; do
    case "$1" in
        -h|--help)
            showHelp 0
            ;;
        *)
            hasId=yes
            id=$1
            shift
            break
            ;;
    esac
done

if [[ $hasId ]] ; then
    tmpfile=/tmp/.ttic.${id}.time
else
    tmpfile=/tmp/.ttic.time
fi

if [ ! -e $tmpfile ] ; then
    echo "Did not find initalized time file. Run ttic with same id before ttoc!"
    exit 1
fi

tic=`cat $tmpfile`
toc=$(($(date +%s%N)/1000000))
delta=$(($toc - $tic))

LC_NUMERIC=C LC_COLLATE=C
printf '%g\n'  $(bc <<< "scale=3; ${delta}/1000")