Run iOS Simulator from the Command Line (runsim)

 Use the following script to install app in simulator. Just put the script under the MyApp.app directory. 

To use the script, specify the name of your executable: $ runsim -iphone /path/app

One thing that might need changing is the version number of the simulator that you want to run, currently using 6.0 but this will also work with 5.1 and 5.0.

#!/bin/bash## runsim   Install and run apps in the iOS Simulator## Copyright (c) 2012 Psellos   http://psellos.com/# Licensed under the MIT License:#     http://www.opensource.org/licenses/mit-license.php#USAGE='usage:  runsim  [ -i { phone | pad } ] [ -srdl ]  executable  file ...'## -iphone   Install as iPhone app# -ipad     Install as iPad app# -s        Start iOS Simulator# -r        Run the app in the simulator# -d        Delete the installed app# -l        List names of installed apps## file ...  Additional files to install with the executable## Default flags are -iphone -s (install as iPhone app and start simulator).## Currently the -r flag uses Instruments and thus requires# authentication as a member of the _developer group.#VERSION=2.0.0INSTALL=nSTART=nRUN=nDELETE=nLIST=nwhile getopts i:srdl opt; do    case "$opt" in    i)        INSTALL=y        case "$OPTARG" in        phone) FAMILY=1 ;;        pad) FAMILY=2 ;;        *)            echo "runsim: unrecognized device family: $OPTARG" >&2            echo "$USAGE" >&2            exit 1            ;;        esac        ;;    s) START=y ;;    r) RUN=y ;;    d) DELETE=y ;;    l) LIST=y ;;    ?) echo "$USAGE" >&2; exit 1 ;;    esacdoneshift $(($OPTIND - 1))case "$INSTALL$START$RUN$DELETE$LIST" in nnnnn)    INSTALL=y    FAMILY=1    START=yesacif [ "$INSTALL$RUN$DELETE" != nnn -a $# -lt 1 ]; then    echo 'runsim: need an executable name for -i -r or -d' >&2    echo "$USAGE" >&2    exit 1fiEXEC="$1"shiftAPPDIR="$HOME/Library/Application Support/\iPhone Simulator/6.0/Applications"TRCSUB=Contents/Applications/Instruments.app\/Contents/PlugIns/AutomationInstrument.bundle\/Contents/Resources/Automation.tracetemplatexcodeloc() {    # Get location of Xcode, otherwise use default    if [ -f runsim.xcloc ]; then        cat runsim.xcloc    else        echo /Applications/Xcode.app    fi}appuuid() {    # Get UUID for an app. If installed, re-use existing one. Otherwise    # create a new one and return it.    #    for f in "$APPDIR"/*/"$1.app" ; do        if [ -d "$f" ]; then            basename "$(dirname "$f")"            return 0        fi    done    uuidgen}install() {    # Install executable $EXEC and associated files into simulator's    # file system.    #    # Figure out startup file, if any. If a nibfile or storyboard file    # is given, the first one is the startup file. Otherwise if there's    # a file $EXEC.nib or $EXEC.storyboard, that is the startup file.    # Otherwise there is no startup file.    #    NIBFILE=    STORYFILE=    if [ -f "$EXEC.nib" ]; then        NIBFILE="$EXEC"    elif [ -f "$EXEC.storyboard" ]; then        STORYFILE="$EXEC"    fi    for f ; do        case "$f" in        *.nib)            STORYFILE=; NIBFILE="$(basename "$f" .nib)"; break ;;        *.storyboard)            NIBFILE=; STORYFILE="$(basename "$f" .storyboard)"; break ;;        esac    done    UUID=$(appuuid "$EXEC")    # Install app and associated files.    #    TOPDIR="$APPDIR/$UUID"    mkdir -p "$TOPDIR"    mkdir -p "$TOPDIR/Documents"    mkdir -p "$TOPDIR/Library"    mkdir -p "$TOPDIR/tmp"    mkdir -p "$TOPDIR/$EXEC.app"    cp "$EXEC" "$TOPDIR/$EXEC.app"    if [ "$NIBFILE" != "" ]; then        cp "$NIBFILE.nib" "$TOPDIR/$EXEC.app"    elif [ "$STORYFILE" != "" ]; then        cp "$STORYFILE.storyboard" "$TOPDIR/$EXEC.app"    fi    # If an Info.plist exists, use it.  Otherwise make one.    if [ -f Info.plist ] ; then        plutil -convert xml1 -o "$TOPDIR/$EXEC.app/Info.plist" Info.plist    else        cat > "$TOPDIR/$EXEC.app/Info.plist" <<HERE1<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"\ "http://www.apple.com/DTDs/PropertyList-1.0.dtd"><plist version="1.0"><dict>        <key>CFBundleDevelopmentRegion</key>        <string>English</string>        <key>CFBundleDisplayName</key>        <string>$EXEC</string>        <key>CFBundleExecutable</key>        <string>$EXEC</string>        <key>CFBundleIconFile</key>        <string>Icon.png</string>        <key>CFBundleIdentifier</key>        <string>com.example.$EXEC</string>        <key>CFBundleInfoDictionaryVersion</key>        <string>6.0</string>        <key>CFBundleName</key>        <string>$EXEC</string>        <key>CFBundlePackageType</key>        <string>APPL</string>        <key>CFBundleSignature</key>        <string>????</string>        <key>CFBundleShortVersionString</key>        <string>1.0</string>        <key>CFBundleVersion</key>        <string>1.0.0</string>        <key>UIStatusBarStyle</key>        <string>UIStatusBarStyleBlackOpaque</string>        <key>LSRequiresIPhoneOS</key>        <true/>HERE1        if [ "$NIBFILE" != "" ]; then            cat >> "$TOPDIR/$EXEC.app/Info.plist" << HERE2        <key>NSMainNibFile</key>        <string>$NIBFILE</string>HERE2        elif [ "$STORYFILE" != "" ]; then            cat >> "$TOPDIR/$EXEC.app/Info.plist" << HERE3        <key>NSMainStoryboardFile</key>        <string>$STORYFILE</string>HERE3        fi        cat >> "$TOPDIR/$EXEC.app/Info.plist" <<HERE4</dict></plist>HERE4    fi    # Add device specifications to Info.plist (normally done by Xcode).    # Without these, Instruments reports the app as AWOL.    #    python -c 'import plistlibimport sysp = plistlib.readPlist(sys.argv[1])p["CFBundleSupportedPlatforms"] = ["iPhoneSimulator"]p["DTPlatformName"] = "iphonesimulator"p["DTSDKName"] = "iphonesimulator6.0"p["UIDeviceFamily"] = ['$FAMILY']plistlib.writePlist(p, sys.argv[1])' "$TOPDIR/$EXEC.app/Info.plist"    echo -n 'AAPL????' > "$TOPDIR/$EXEC.app/PkgInfo"    # Install conventional image files if they exist.    #    if [ -f Icon.png ]; then        cp Icon.png "$TOPDIR/$EXEC.app"    fi    if [ -f Default.png ]; then        cp Default.png "$TOPDIR/$EXEC.app"    fi    # Install any other given files.    #    for f; do        if [ "$f" = "$NIBFILE.nib" ]; then continue; fi        if [ "$f" = "$STORYFILE.storyboard" ]; then continue; fi        cp "$f" "$TOPDIR/$EXEC.app"    done}start() {    # Start the iOS Simulator    #    open "$(xcodeloc)"/Contents/\Developer/Platforms/iPhoneSimulator.platform/\Developer/Applications/iPhone\ Simulator.app}run() {    # Run the app inside iOS Simulator by asking Instruments to trace it    # with null trace. If you haven't agreed to the licensing terms of    # Xcode, this will fail until you do.  The first time in each login    # session, this will ask for authentication as an admin or    # developer.    #    TOPDIR="$APPDIR/$(appuuid "$EXEC")"    if [ ! -d "$TOPDIR/$EXEC.app" ]; then        echo "runsim: app \"$EXEC\" not installed" >&2        exit 1    fi    (instruments -D /tmp/runsim$$.trace -t "$(xcodeloc)/$TRCSUB" \            "$TOPDIR/$EXEC.app" < /dev/null 2>&1 > /dev/null | \            grep 'xcodebuild -license' >&2 ; \        rm -rf /tmp/runsim$$.trace) &}delete() {    # Delete an installed app.    #    TOPDIR="$APPDIR/$(appuuid "$EXEC")"    if [ ! -d "$TOPDIR" ]; then        echo "runsim: app \"$EXEC\" not installed" >&2        exit 1    fi    rm -rf "$TOPDIR"}list() {    # List installed apps.    #    for f in "$APPDIR"/*/*.app ; do        if [ -d "$f" ]; then            basename "$f" .app        fi    done}case $INSTALL in y) install "$@" ;; esaccase $START in y) start ;; esaccase $RUN in y) run ;; esaccase $DELETE in y) delete ;; esaccase $LIST in y) list ;; esac

The lite version is

#Here is the script which just installs your app to the simulator.# Pick a uuid for the app (or reuse existing one).if ! [ -f installApp.uuid ]; thenuuidgen > installApp.uuidfiUUID=$(cat installApp.uuid)#create supporting foldersTOPDIR="$HOME/Library/Application Support/\iPhone Simulator/6.0/Applications/$UUID/"mkdir -p "$TOPDIR"mkdir -p "$TOPDIR/Documents"mkdir -p "$TOPDIR/Library"mkdir -p "$TOPDIR/tmp"mkdir -p "$TOPDIR/$1.app"#copy all the app file to the simulators directorycp -r * "$TOPDIR/$1.app"# Get location of Xcode, otherwise use defaultif [ -f installApp.xcloc ]; thenXCLOC="$(cat installApp.xcloc)"elseXCLOC=/Applications/Xcode.appfi

refer from:http://psellos.com/2012/05/2012.05.iossim-command-line-2.html