Score:0

Ubuntu

How to prevent the gio open command from outputting texting in the console?

Normal

3/15/23, 5:04 AM

I use the gio open command very often, so what I have done is I added an alias for it in the .bashrc file

alias open="gio open"

Hence, I can simply write open . or open ~/Pictures/example.png as an example.

However, I can't prevent the annoying output of gio because it doesn't have a --quite option by default, gio open outputs some messages during its job, for example:

msi@msi:~/Pictures$ open image-3.jpg 
msi@msi:~/Pictures$ 
(gthumb:37944): Gtk-WARNING **: 08:00:54.815: Failed to register client: GDBus.Error:org.gnome.SessionManager.AlreadyRegistered: Unable to register client

So what I have found is that some people were using the redirect operator to redirect the output of a command from the standard output (the shell) to /dev/null since everything gets written to this 'device' gets deleted automatically directly.

Could you help with this?

0 + 0

bash

bashrc

stdout

Score:0

Ubuntu

vanadium

3/15/23, 10:44 AM

Suppressing error output

Warning messages of applications, in your example "gthumb", are not send to standard output, but to stderr. You can suppress these messages like:

gio open image-3.jpg 2>/dev/null

An alias as

alias open='gio open 2>/dev/null'

will work to automate also that aspect in your alias.

Supressing all output

To eliminate all output, redirect both file descriptor 1 (stdout) and 2 (stderr) to /dev/null:

gio open image-3.jpg 1>/dev/null 2>/dev/null

Following has the same effect, but allows you to specify the final target only once:

gio open image-3.jpg >/dev/null 2>&1

stdout is redirected to /dev/null, and stderr to stdout, which became /dev/null. 1 can be omitted because it is the default output.

Bash and other shells also allow this shortcut notation:

gio open image-3.jpg &>/dev/null

0 + 0

Normal

3/16/23, 6:47 AM

Thanks, what does the number 2 indicate? errors? are there other numbers?

vanadium

3/16/23, 8:38 AM

2> means stderr

Normal

4/2/23, 7:57 AM

how to prevent stderr and stdout at the same time?

vanadium

4/2/23, 8:19 AM

I added full detail

Normal

4/5/23, 11:34 AM

Thanks @vanadium

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: How to prevent the gio open command from outputting texting in the console?

TH: จะป้องกันคำสั่ง gio open ไม่ให้ส่งข้อความในคอนโซลได้อย่างไร

RO: Cum să împiedici comanda gio open să trimită mesaje text în consolă?

RU: Как запретить команде gio open выводить текстовые сообщения в консоль?

VI: Làm cách nào để ngăn lệnh mở gio xuất văn bản trong bảng điều khiển?

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