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 \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."; }
command -v \gpg-agent >/dev/null 2>&1 || { echo >&2 "WARNING: gnupg-agent isn't installed. You should install it, because it's used by gpg.conf and xsessionrc in shell-things."; }

## To disable warnings, add the following (UNCOMMENTED!) to ~/.custom

#if [ -f ~/.warnings ]; then
#    rm ~/.warnings
#    fi