gistfile1.sh

$ file /usr/bin/sensible-editor
/usr/bin/sensible-editor: POSIX shell script text executable


$ cat /usr/bin/sensible-editor
#!/bin/sh

ret="$?"

# Prevent recursive loops, where these values are set to this script
p="$(which sensible-editor)"
[ "$(which $EDITOR || true)" = "$p" ] && EDITOR=
[ "$(which $VISUAL || true)" = "$p" ] && VISUAL=
[ "$(which $SELECTED_EDITOR || true)" = "$p" ] && SELECTED_EDITOR=

if [ -n "$VISUAL" ]; then
        ${VISUAL} "$@"
        ret="$?"
        if [ "$ret" -ne 126 ] && [ "$ret" -ne 127 ]; then
                exit "$ret"
        fi
fi

if [ -r ~/.selected_editor ]; then
        . ~/.selected_editor 2>/dev/null || true
elif [ -z "$EDITOR" ] && [ -z "$SELECTED_EDITOR" ] && [ -t 0 ]; then
        select-editor && . ~/.selected_editor 2>/dev/null || true
fi

${EDITOR:-${SELECTED_EDITOR:-editor}} "$@"
ret="$?"
if [ "$ret" -eq 126 ] || [ "$ret" -eq 127 ]; then
        nano "$@"
        ret="$?"
        if [ "$ret" -eq 126 ] || [ "$ret" -eq 127 ]; then
                nano-tiny "$@"
                ret="$?"
                if [ "$ret" -eq 126 ] || [ "$ret" -eq 127 ]; then
                        vi "$@"
                        ret="$?"
                        if [ "$ret" -eq 126 ] || [ "$ret" -eq 127 ]; then
                                echo "Couldn't find an editor!" 1>&2
                                echo "Set the \$EDITOR environment variable to y                                                                             our desired editor." 1>&2
                                exit 1
                        fi
                fi
        fi
fi
exit "$ret"