diff --git a/install.sh b/install.sh
index c20add2..9f354a3 100755
--- a/install.sh
+++ b/install.sh
@@ -34,18 +34,18 @@ install_dependencies()
             case $(get_linux_dist) in
                 "ubuntu"|"debian" )
                     $SUDO apt-get update
-                    $SUDO apt-get install -y git zsh bash tmux vim python3 python3-pip curl inetutils-ping cmake less
+                    $SUDO apt-get install -y git zsh bash tmux vim python3 python3-pip curl inetutils-ping cmake less bsdmainutils
                     ;;
                 "alpine" )
                     $SUDO apk update
-                    $SUDO apk add zsh bash git tmux vim curl python3 py3-pip fzf iputils coreutils
+                    $SUDO apk add zsh bash git tmux vim curl python3 py3-pip fzf iputils coreutils util-linux
                     ;;
                 * ) fmt_error "dfs auto-install is not implemented on linux distribution: $(get_linux_dist)"
             esac
             ;;
         "macos" )
             $SUDO brew update
-            $SUDO brew install git python3 zsh curl tmux vim
+            $SUDO brew install git python3 zsh curl tmux vim util-linux
             ;;
         "msys" )
             pacman -Syu
diff --git a/tools/ubuntu.sh b/tools/ubuntu.sh
index d15fbf8..c9309f9 100755
--- a/tools/ubuntu.sh
+++ b/tools/ubuntu.sh
@@ -13,12 +13,12 @@ set_mirror()
 apt_install()
 {
     # basic packages
-    apt update
-    for i in {man-db,vim,ca-certificates}; do apt install $i -y; done
+    apt-get update
+    for i in {man-db,vim,ca-certificates}; do apt-get install $i -y; done
 
     # mass installation
-    apt install git tmux zsh curl wget dialog net-tools dnsutils netcat traceroute sudo python3 python3-pip cron inetutils-ping openssh-client openssh-server htop gcc g++ cmake make zip less
-    for i in {fzf,ripgrep}; do apt install $i -y; done
+    apt-get install git tmux zsh curl wget dialog net-tools dnsutils netcat traceroute sudo python3 python3-pip cron inetutils-ping openssh-client openssh-server htop gcc g++ cmake make zip less bsdmainutils
+    for i in {fzf,ripgrep}; do apt-get install $i -y; done
 }
 
 set_timezone()