First, I also find it annoying that these warnings show up on an out-of-the-box Ubuntu, with no "proper" method to disable them which I could find (it seems that the most common "solution" is either to install gir1.2-gtksource-3.0 which doesn't seem to work since it's already installed, or to ignore them - but I want to suppress them completely since they just make my terminal noisy).

I came up with the following code which so far seems to behave exactly how I'd expect it to, and is based on the answer by TuKsn, but enhances it a bit to:

• Work by default (gedit ...) without needing to use F12 or some other shortcut (to invoke unfiltered use /usr/bin/gedit ...).


• Displays the entered command name when it terminates as a background task.

Can still be generalized a bit, but for now, if you need the same treatment for other commands, duplicate the gedit() function for each other command name which needs the same filter.

# solution adapted from: http://askubuntu.com/questions/505594

# TODO: use a list of warnings instead of cramming all of them to a single grep.

# TODO: generalize gedit() to allow the same treatment for several commands

#       without duplicating the function with only a different name

# output filter. takes: name_for_history some_command [arguments]

# the first argument is required both for history, but also when invoking to bg

# such that it shows Done <name> ... instead of e.g. Done /usr/bin/gedit ...

suppress-gnome-warnings() {

    # $1 is the name which should appear on history but is otherwise unused.

    historyName=$1

    shift



    if [ -n "$*" ]; then

        # write the real command to history without the prefix

        # syntax adapted from http://stackoverflow.com/questions/4827690

        history -s "$historyName ${@:2}"



        # catch the command output

        errorMsg=$( $* 2>&1 )



        # check if the command output contains not a (one of two) GTK-Warnings

        if ! $(echo $errorMsg | grep -q 'Gtk-WARNING|connect to accessibility bus'); then

            echo $errorMsg

        fi

    fi

}

gedit() {

  suppress-gnome-warnings $FUNCNAME $(which $FUNCNAME) $@

}

And a better version (way smaller, fully generic, no need to rewrite history since invoked as is, and better for filtering per line rather than the whole output):

# generates a function named $1 which:

# - executes $(which $1) [with args]

# - suppresses output lines which match $2

# e.g. adding: _supress echo "hello|world"

# will generate this function:

# echo() { $(which echo) "$@" 2>&1 | tr -d '

' | grep -v "hello|world"; }

# and from now on, using echo will work normally except that lines with

# hello or world will not show at the output

# to see the generated functions, replace eval with echo below

# the 'tr' filter makes sure no spurious empty lines pass from some commands

_supress() {

  eval "$1() { $(which $1) "$@" 2>&1 | tr -d '

' | grep -v "$2"; }"

}



_supress gedit          "Gtk-WARNING|connect to accessibility bus"

_supress gnome-terminal "accessibility bus|stop working with a future version"

_supress firefox        "g_slice_set_config"