shell-things/warnings

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command -v vim >/dev/null 2>&1 || { echo >&2 "WARNING: vim isn't installed You should install it, because it's used as text editor.!"; }
command -v most >/dev/null 2>&1 || { echo >&2 "WARNING: most isn't installed! You should install it, because it's used as pager."; }
command -v htop >/dev/null 2>&1 || { echo >&2 "WARNING: htop isn't installed! You should install it, because it's used as top."; }
command -v youtube-dl >/dev/null 2>&1 || { echo >&2 "WARNING: youtube-dl isn't installed! You should install it, because it's used as youtube-dl. What am I writing? Install it for fun"; } # Expect this to be removed in near future.
command -v nping >/dev/null 2>&1 || { echo >&2 "WARNING: nping isn't installed! You should install it, because it's used as ping."; }
command -v aptitude >/dev/null 2>&1 || { echo >&2 "WARNING: aptitude isn't installed! You should install it, because it's used as apt-get"; }
command -v gpg2 >/dev/null 2>&1 || { echo >&2 "WARNING: gnupg2 isn't installed! You should install it, because it's used as gpg."; }
command -v lynx >/dev/null 2>&1 || { echo >&2 "WARNING: lynx isn't installed! You should install it, because it's used by many functions."; }
if [ ! -f /usr/share/doc/popularity-contest/copyright ]
then
echo "You might want to install popularity-contest. See http://popcon.debian.org/"
fi