aliases/package-manager: Use _omb_util_binary_exists for testing command existence

aliases/package-manager.aliases.bash

@@ -3,12 +3,12 @@
 #  ---------------------------------------------------------------------------
 
 # Logic for root usage
-if [ -n "$EUID" ] && [ -x $(command -v sudo) ]; then
+if [ -n "$EUID" ] && _omb_util_binary_exists emerge sudo; then
   [ -z "$OMB_USE_ROOT" ] && export OMB_ROOT=true
 fi
 
 # Portage - Enoch Merge
-if [[ -x "$(command -v emerge)" ]]; then
+if _omb_util_binary_exists emerge; then
   alias em="${OMB_ROOT:+sudo }emerge" # Enoch Merge
   alias es="${OMB_ROOT:+sudo }emerge --search" # Enoch Search
   alias esync="${OMB_ROOT:+sudo }emerge --sync" # Enoch SYNC
@@ -20,7 +20,7 @@ if [[ -x "$(command -v emerge)" ]]; then
 fi
 
 # Paludis - Cave
-if [[ -x "$(command -v cave)" ]]; then
+if _omb_util_binary_exists cave; then
   alias cave="${OMB_ROOT:+sudo }cave"
   alias cr="${OMB_ROOT:+sudo }cave resolve" # Cave Resolve
   alias cui="${OMB_ROOT:+sudo }cave uninstall" # Cave UnInstall
@@ -29,7 +29,7 @@ if [[ -x "$(command -v cave)" ]]; then
 fi
 
 # Advanced Packaging Tool - APT
-if [[ -x "$(command -v apt)" ]]; then
+if _omb_util_binary_exists apt; then
   alias apt="${OMB_ROOT:+sudo }apt" # Advanced Packaging Tool
   alias aptfu="${OMB_ROOT:+sudo }apt update -y && ${OMB_ROOT:+sudo }apt upgrade -y && ${OMB_ROOT:+sudo }apt dist-upgrade -y && ${OMB_ROOT:+sudo }apt autoremove -y"
   alias apti="${OMB_ROOT:+sudo }apt install -y" # Apt install
@@ -40,20 +40,19 @@ if [[ -x "$(command -v apt)" ]]; then
 fi
 
 # Debian PacKaGe - DPKG
-if [[ -x "$(command -v dpkg)" ]]; then
+if _omb_util_binary_exists dpkg; then
   alias dpkg="${OMB_ROOT:+sudo }dpkg"
 fi
 
 # # Zypper = Zen Yast Package Program (ZYPP?)
-# if [[ -x "$(command -v zypper)" ]]; then
-#
+# if _omb_util_binary_exists zypper; then
 #   # Yast = Yet Another Silly/Setup Thing/Thing
 #   alias lcp="${OMB_ROOT:+sudo }zypper"
 #   alias lcpi="${OMB_ROOT:+sudo }zypper install"
 #   alias lcps="${OMB_ROOT:+sudo }zypper search"
 #   alias lcpsi="${OMB_ROOT:+sudo }zypper source-install"
 #   alias lcpr="${OMB_ROOT:+sudo }zypper remove"
-#   if [[ $(cat /etc/os-release | grep -m 1 -o 'openSUSE Tumbleweed') == "openSUSE Tumbleweed"  ]]; then
+#   if grep -q 'openSUSE Tumbleweed' /etc/os-release; then
 #     # Zypper update kills the system - LCP
 #     alias lcpfu="${OMB_ROOT:+sudo }zypper dup"
 #     # Because Geeko uses sublime3 to call sublime_text instead of something that makes sence like 'subl'..