diff --git a/bash-zsh.sh b/bash-zsh.sh
index 3f3a6e9..f143fa3 100644
--- a/bash-zsh.sh
+++ b/bash-zsh.sh
@@ -1,7 +1,20 @@
 #!/bin/bash
+# macOS does not come with readlink or realpath, so we need to take a portable substitute
+source "./util/realpath.sh"
 
-BASHRC=`readlink -f $HOME/.bashrc`
-ZSHRC=`readlink -f $HOME/.zshrc`
+case $os in
+    "Linux") 
+        BASHRC=`readlink -f $HOME/.bashrc`
+        ZSHRC=`readlink -f $HOME/.zshrc`
+    ;;
+    "Darwin") 
+        BASHRC=`realpath $HOME/.bashrc`
+        ZSHRC=`realpath $HOME/.zshrc`
+    ;;
+    *) echo "Operating system not supported. Exiting."
+       exit 1
+    ;;
+esac
 
 which bash &> /dev/null
 first="$?"
diff --git a/install b/install
index 6624496..6053004 100755
--- a/install
+++ b/install
@@ -22,7 +22,7 @@ echo "Press any key to continue, or Ctrl+C to break."
 read
 
 mkdir -p $TARGET_DIR
-cp * $TARGET_DIR
+cp -r * $TARGET_DIR
 
 # add to path
 mkdir -p $HOME/.local/bin
diff --git a/linux_functions.sh b/linux_functions.sh
new file mode 100644
index 0000000..778f0c6
--- /dev/null
+++ b/linux_functions.sh
@@ -0,0 +1,86 @@
+#!/bin/bash
+#
+# If you have found some issues, or some feature request :
+# Raise them here : https://github.com/himanshub16/ProxyMan/issues
+# Author : Himanshu Shekhar (@himanshub16)
+#
+
+# This is the script that provides main script functions for Linux.
+
+function _do_it_for_selection() {
+    local what_to_do="$1"
+    for t in "${targets[@]}"
+    do
+        case "$t" in
+            # THIS stmt WILL CAUSE INFINITE RECURSION. DO NOT USE THIS.
+            # COMMENTED FOR WARNING
+            # 1) _do_it_for_all "$what_to_do"
+            #    ;;
+            2) bash "bash-zsh.sh" "$what_to_do"
+                ;;
+            3) sudo -E bash "environment.sh" "$what_to_do"
+                ;;
+            4) sudo -E bash "apt.sh" "$what_to_do"
+               sudo -E bash "dnf.sh" "$what_to_do"
+                ;;
+            5) bash "gsettings.sh" "$what_to_do"
+               bash "kde5.sh" "$what_to_do"
+                ;;
+            6) bash "npm.sh" "$what_to_do"
+                ;;
+            7) bash "dropbox.sh" "$what_to_do"
+                ;;
+            8) bash "git.sh" "$what_to_do"
+                ;;
+            9) sudo -E bash "docker.sh" "$what_to_do"
+                ;;
+            *) ;;
+        esac
+    done
+}
+
+function _do_it_for_all() {
+    # Argument
+    # $1 : what to do (set/unset/list)
+
+    local what_to_do="$1"
+    if [[ -z "$targets" || "$targets" = "1" ]]; then
+        bash "bash-zsh.sh" "$what_to_do"
+	# avoiding /etc/environment in all because it requires logout after unset
+	# bashrc / zshrc is sufficient, and sudo -E might suffice
+	if [[ "$what_to_do" = "list" ]]; then
+            sudo -E bash "environment.sh" "$what_to_do"
+        fi
+        bash "gsettings.sh" "$what_to_do"
+        bash "kde5.sh" "$what_to_do"
+        bash "npm.sh" "$what_to_do"
+        bash "dropbox.sh" "$what_to_do"
+        bash "git.sh" "$what_to_do"
+
+        # isn't required, but still checked to avoid sudo in main all the time
+        SUDO_CMDS="apt dnf docker"
+        for cmd in $SUDO_CMDS; do
+            command -v $cmd > /dev/null && sudo -E bash "${cmd}.sh" "$what_to_do" || :
+        done
+    else
+        _do_it_for_selection "$what_to_do"
+    fi
+}
+
+function prompt_for_proxy_targets() {
+    echo "${bold}${blue} Select targets to modify ${normal}"
+
+    echo "|${bold}${red} 1 ${normal}| All of them ... Don't bother me"
+    echo "|${bold}${red} 2 ${normal}| Terminal / bash / zsh (current user) "
+    echo "|${bold}${red} 3 ${normal}| /etc/environment"
+    echo "|${bold}${red} 4 ${normal}| apt/dnf (Package manager)"
+    echo "|${bold}${red} 5 ${normal}| Desktop settings (GNOME/Ubuntu/KDE)"
+    echo "|${bold}${red} 6 ${normal}| npm & yarn"
+    echo "|${bold}${red} 7 ${normal}| Dropbox"
+    echo "|${bold}${red} 8 ${normal}| Git"
+    echo "|${bold}${red} 9 ${normal}| Docker"
+    echo
+    echo "Separate multiple choices with space"
+    echo -n "${bold} ? ${normal}" ; read targets
+    export targets=(`echo ${targets}`)
+}
\ No newline at end of file
diff --git a/macos_functions.sh b/macos_functions.sh
new file mode 100644
index 0000000..7a345ef
--- /dev/null
+++ b/macos_functions.sh
@@ -0,0 +1,61 @@
+#!/bin/bash
+#
+# If you have found some issues, or some feature request :
+# Raise them here : https://github.com/himanshub16/ProxyMan/issues
+# Author : Benjamin Gericke (@deg0nz)
+#
+
+# This is the script that provides main script functions for macOS.
+
+function _do_it_for_selection() {
+    local what_to_do="$1"
+    for t in ${targets[@]}
+    do
+        case "$t" in
+            # THIS stmt WILL CAUSE INFINITE RECURSION. DO NOT USE THIS.
+            # COMMENTED FOR WARNING
+            # 1) _do_it_for_all "$what_to_do"
+            #    ;;
+            2) bash "networksetup.sh" "$what_to_do"
+                ;;
+            3) bash "bash-zsh.sh" "$what_to_do"
+                ;;
+            4) bash "npm.sh" "$what_to_do"
+                ;;
+            5) bash "git.sh" "$what_to_do"
+                ;;
+            *) ;;
+        esac
+    done
+}
+
+function _do_it_for_all() {
+    # Argument
+    # $1 : what to do (set/unset/list)
+
+    local what_to_do="$1"
+    if [[ -z "$targets" || "$targets" = "1" ]]; then
+
+        bash "bash-zsh.sh" "$what_to_do"
+        bash "networksetup.sh" "$what_to_do"
+        bash "npm.sh" "$what_to_do"
+        bash "git.sh" "$what_to_do"
+
+    else
+        _do_it_for_selection "$what_to_do"
+    fi
+}
+
+function prompt_for_proxy_targets() {
+    echo "${bold}${blue} Select targets to modify ${normal}"
+
+    echo "|${bold}${red} 1 ${normal}| All of them ... Don't bother me"
+    echo "|${bold}${red} 2 ${normal}| System-wide settings (networksetup)"
+    echo "|${bold}${red} 3 ${normal}| Terminal / bash / zsh (current user)"
+    echo "|${bold}${red} 4 ${normal}| npm & yarn"
+    echo "|${bold}${red} 5 ${normal}| Git"
+    echo
+    echo "Separate multiple choices with space"
+    echo -n "${bold} ? ${normal}" ; read targets
+    export targets=(`echo ${targets}`)
+}
\ No newline at end of file
diff --git a/main.sh b/main.sh
index 02184a3..1cf2f16 100755
--- a/main.sh
+++ b/main.sh
@@ -11,62 +11,16 @@
 source "./variables.sh"
 source "./configs.sh"
 
-
-function _do_it_for_all() {
-    # Argument
-    # $1 : what to do (set/unset/list)
-
-    local what_to_do="$1"
-    if [[ -z "$targets" || "$targets" = "1" ]]; then
-        bash "bash-zsh.sh" "$what_to_do"
-	# avoiding /etc/environment in all because it requires logout after unset
-	# bashrc / zshrc is sufficient, and sudo -E might suffice
-	if [[ "$what_to_do" = "list" ]]; then
-            sudo -E bash "environment.sh" "$what_to_do"
-        fi
-        bash "gsettings.sh" "$what_to_do"
-        bash "kde5.sh" "$what_to_do"
-        bash "npm.sh" "$what_to_do"
-        bash "dropbox.sh" "$what_to_do"
-        bash "git.sh" "$what_to_do"
-
-        # isn't required, but still checked to avoid sudo in main all the time
-        SUDO_CMDS="apt dnf docker"
-        for cmd in $SUDO_CMDS; do
-            command -v $cmd > /dev/null && sudo -E bash "${cmd}.sh" "$what_to_do" || :
-        done
-    else
-        for t in "${targets[@]}"
-        do
-            case "$t" in
-                # THIS stmt WILL CAUSE INFINITE RECURSION. DO NOT USE THIS.
-                # COMMENTED FOR WARNING
-                # 1) _do_it_for_all "$what_to_do"
-                #    ;;
-                2) bash "bash-zsh.sh" "$what_to_do"
-                   ;;
-                3) sudo -E bash "environment.sh" "$what_to_do"
-                   ;;
-                4) sudo -E bash "apt.sh" "$what_to_do"
-                   sudo -E bash "dnf.sh" "$what_to_do"
-                   ;;
-                5) bash "gsettings.sh" "$what_to_do"
-                   bash "kde5.sh" "$what_to_do"
-                   ;;
-                6) bash "npm.sh" "$what_to_do"
-                   ;;
-                7) bash "dropbox.sh" "$what_to_do"
-                   ;;
-                8) bash "git.sh" "$what_to_do"
-                   ;;
-                9) sudo -E bash "docker.sh" "$what_to_do"
-                   ;;
-                *) ;;
-            esac
-        done
-
-    fi
-}
+# Load main functions for current operating system
+case $os in
+    "Linux") source "./linux_functions.sh"
+    ;;
+    "Darwin") source "./macos_functions.sh"
+    ;;
+    *) echo "Operating system not supported. Exiting."
+       exit 1
+    ;;
+esac
 
 function _dump_it_all() {
     echo "HTTP  > $http_host $http_port"
@@ -140,24 +94,6 @@ function prompt_for_proxy_values() {
     echo
 }
 
-function prompt_for_proxy_targets() {
-    echo "${bold}${blue} Select targets to modify ${normal}"
-
-    echo "|${bold}${red} 1 ${normal}| All of them ... Don't bother me"
-    echo "|${bold}${red} 2 ${normal}| Terminal / bash / zsh (current user) "
-    echo "|${bold}${red} 3 ${normal}| /etc/environment"
-    echo "|${bold}${red} 4 ${normal}| apt/dnf (Package manager)"
-    echo "|${bold}${red} 5 ${normal}| Desktop settings (GNOME/Ubuntu/KDE)"
-    echo "|${bold}${red} 6 ${normal}| npm & yarn"
-    echo "|${bold}${red} 7 ${normal}| Dropbox"
-    echo "|${bold}${red} 8 ${normal}| Git"
-    echo "|${bold}${red} 9 ${normal}| Docker"
-    echo
-    echo "Separate multiple choices with space"
-    echo -ne "\e[5m ? \e[0m" ; read targets
-    export targets=(`echo ${targets}`)
-}
-
 function main() {
     case "$1" in
         "configs"  ) list_configs
diff --git a/networksetup.sh b/networksetup.sh
new file mode 100644
index 0000000..90d1e15
--- /dev/null
+++ b/networksetup.sh
@@ -0,0 +1,117 @@
+#!/bin/bash
+#
+# If you have found some issues, or some feature request :
+# Raise them here : https://github.com/himanshub16/ProxyMan/issues
+# Author : Benjamin Gericke (@deg0nz)
+#
+
+# This is the script that provides functions for macOS's networksetup tool.
+
+function _prompt_networkservices_targets() {
+    echo "${bold}${blue} Select network interfaces to modify ${normal}"
+
+    echo "|${bold}${red} 1 ${normal}| All of them ... Don't bother me"
+    local IFS=$'\n'
+    local counter=2
+    for line in $(networksetup -listallnetworkservices); do
+        # TODO: Handle disabled services
+        if [[ "$line" == "An asterisk (*) denotes that a network service is disabled." ]]; then
+            continue
+        fi
+        echo "|${bold}${red} ${counter} ${normal}| ${line} "
+        # We write the array from 0, although 1 is "all devices"
+        # loop for selected services must be adjusted
+        arraypos="(($counter-2))"
+        networkservices_array[$arraypos]="$line"
+        ((counter++))
+    done
+    echo
+    echo "Separate multiple choices with space"
+    echo -n "${bold} ? ${normal}" ; read targets_networkservices
+    export targets_networkservices=(`echo ${targets_networkservices}`)
+}
+
+function _set_proxy_for_networkservice() {
+    local networkservice="$1"
+    # Parameters: [-setwebproxy networkservice domain portnumber authenticated username password]
+    if [[ "$use_auth" = "y" ]]; then
+        networksetup -setwebproxy "$networkservice" "$http_host" "$http_port" on "$username" "$password"
+        networksetup -setsecurewebproxy "$networkservice" "$https_host" "$https_port" on "$username" "$password"
+        networksetup -setftpproxy "$networkservice" "$http_host" "$http_port" on "$username" "$password"
+    else
+        networksetup -setwebproxy "$networkservice" "$http_host" "$http_port" off
+        networksetup -setsecurewebproxy "$networkservice" "$https_host" "$https_port" off
+        networksetup -setftpproxy "$networkservice" "$http_host" "$http_port" off
+    fi
+
+    networksetup -setproxybypassdomains "$networkservice" "$no_proxy"
+}
+
+function _unset_proxy_for_networkservice() {
+    local networkservice="$1"
+
+    networksetup -setwebproxystate "$networkservice" off
+    networksetup -setsecurewebproxystate "$networkservice" off
+    networksetup -setftpproxystate "$networkservice" off
+    networksetup -setproxyautodiscovery "$networkservice" off
+}
+
+function list_proxy() {
+    # TODO
+    echo "Listing proxies for system-wide settings on macOS is not yet implemented."
+    echo "Please look into System Preferences -> Network -> <Networkdevice> -> Advanced -> Proxies for now."
+}
+
+function unset_proxy() {
+    echo "Additional information for ${bold}unsetting${normal} system-wide proxy is needed."
+
+    _prompt_networkservices_targets
+
+    if [[ -z "$targets_networkservices" || "$targets_networkservices" = "1" ]]; then
+        # Unset for all services
+        local IFS=$'\n'
+        for networkservice in ${networkservices_array[*]}; do
+            _unset_proxy_for_networkservice "$networkservice"
+        done
+    else
+        # Unset for selection
+        for arrayindex in ${targets_networkservices[@]}; do
+            # We need to correct the index, because 1 is "all devices", so all the indexes are increased by 1
+            corrected_index="(($arrayindex-2))"
+            _unset_proxy_for_networkservice "${networkservices_array[$corrected_index]}"
+        done
+    fi    
+}
+
+function set_proxy() {
+    echo "Additional information for ${bold}setting${normal} system-wide proxy is needed."
+
+    _prompt_networkservices_targets
+        
+    if [[ -z "$targets_networkservices" || "$targets_networkservices" = "1" ]]; then
+        # Set for all services
+        local IFS=$'\n'
+        for networkservice in ${networkservices_array[*]}; do
+            _set_proxy_for_networkservice "$networkservice"
+        done
+    else
+        # Set for selection of services
+        for arrayindex in ${targets_networkservices[@]}; do
+            # We need to correct the index, because 1 is "all devices", so all the indexes are increased by 1
+            corrected_index="(($arrayindex-2))"
+            _set_proxy_for_networkservice "${networkservices_array[$corrected_index]}"
+        done
+    fi
+}
+
+what_to_do=$1
+case $what_to_do in
+    set) set_proxy
+         ;;
+    unset) unset_proxy
+           ;;
+    list) list_proxy
+          ;;
+    *)
+          ;;
+esac
\ No newline at end of file
diff --git a/shellrc.sh b/shellrc.sh
index 8cc1865..eff683b 100644
--- a/shellrc.sh
+++ b/shellrc.sh
@@ -25,14 +25,33 @@ unset_proxy() {
     if [ ! -e "$SHELLRC" ]; then
         return
     fi
-    # extra effort required to avoid removing custom environment variables set
-    # by the user for personal use
-    for proxytype in "http" "https" "ftp" "rsync" "no"; do
-        sed -i "/export ${proxytype}_proxy\=/d" "$SHELLRC"
-    done
-    for PROTOTYPE in "HTTP" "HTTPS" "FTP" "RSYNC" "NO"; do
-        sed -i "/export ${PROTOTYPE}_PROXY\=/d" "$SHELLRC"
-    done
+
+    # macOS ships with BSD sed, which has different syntax from GNU sed
+    case $os in
+        "Linux") 
+            # extra effort required to avoid removing custom environment variables set
+            # by the user for personal use
+            for proxytype in "http" "https" "ftp" "rsync" "no"; do
+                sed -i "/export ${proxytype}_proxy\=/d" "$SHELLRC"
+            done
+            for PROXYTYPE in "HTTP" "HTTPS" "FTP" "RSYNC" "NO"; do
+                sed -i "/export ${PROXYTYPE}_PROXY\=/d" "$SHELLRC"
+            done
+        ;;
+        "Darwin")
+            # extra effort required to avoid removing custom environment variables set
+            # by the user for personal use
+            for proxytype in "http" "https" "ftp" "rsync" "no"; do
+                sed -i "" "/export ${proxytype}_proxy\=/d" "$SHELLRC"
+            done
+            for PROXYTYPE in "HTTP" "HTTPS" "FTP" "RSYNC" "NO"; do
+                sed -i "" "/export ${PROXYTYPE}_PROXY\=/d" "$SHELLRC"
+            done
+        ;;
+        *) echo "Operating system not supported. Exiting."
+        exit 1
+        ;;
+    esac
 }
 
 set_proxy() {
diff --git a/util/realpath.sh b/util/realpath.sh
new file mode 100644
index 0000000..9946cdf
--- /dev/null
+++ b/util/realpath.sh
@@ -0,0 +1,71 @@
+#!/bin/sh
+# Pure shell implementation of realpath
+# Taken from https://github.com/mkropat/sh-realpath
+
+realpath() {
+    canonicalize_path "$(resolve_symlinks "$1")"
+}
+
+resolve_symlinks() {
+    _resolve_symlinks "$1"
+}
+
+_resolve_symlinks() {
+    _assert_no_path_cycles "$@" || return
+
+    local dir_context path
+    path=$(readlink -- "$1")
+    if [ $? -eq 0 ]; then
+        dir_context=$(dirname -- "$1")
+        _resolve_symlinks "$(_prepend_dir_context_if_necessary "$dir_context" "$path")" "$@"
+    else
+        printf '%s\n' "$1"
+    fi
+}
+
+_prepend_dir_context_if_necessary() {
+    if [ "$1" = . ]; then
+        printf '%s\n' "$2"
+    else
+        _prepend_path_if_relative "$1" "$2"
+    fi
+}
+
+_prepend_path_if_relative() {
+    case "$2" in
+        /* ) printf '%s\n' "$2" ;;
+         * ) printf '%s\n' "$1/$2" ;;
+    esac
+}
+
+_assert_no_path_cycles() {
+    local target path
+
+    target=$1
+    shift
+
+    for path in "$@"; do
+        if [ "$path" = "$target" ]; then
+            return 1
+        fi
+    done
+}
+
+canonicalize_path() {
+    if [ -d "$1" ]; then
+        _canonicalize_dir_path "$1"
+    else
+        _canonicalize_file_path "$1"
+    fi
+}
+
+_canonicalize_dir_path() {
+    (cd "$1" 2>/dev/null && pwd -P)
+}
+
+_canonicalize_file_path() {
+    local dir file
+    dir=$(dirname -- "$1")
+    file=$(basename -- "$1")
+    (cd "$dir" 2>/dev/null && printf '%s/%s\n' "$(pwd -P)" "$file")
+}
diff --git a/variables.sh b/variables.sh
index 25b451b..47b896d 100644
--- a/variables.sh
+++ b/variables.sh
@@ -36,6 +36,7 @@ fi
 export config_dir="$HOME/.config/proxyman"
 export default_config="default"
 export SHELLRC="$HOME/.bashrc"
+export os=`uname`
 
 case "$SHELL" in
     "$(which bash)") SHELLRC="$HOME/.bashrc"