Ubuntu – GTK commands in a single BASH shell script, is it possible

bashcommand linepythonscripts

Is it possible in a bash shell script (single file) with loops variables etc that executes zenity among other programs
to remove zenity and add GTK functions instead?

If yes then is it possible also to add bash commands, variables, loops (copied from the bash shell script) to qt4 designer?

What i'm asking is if there a possibility that GTK functions can be combined with bash commands inside a bash shell script or even bash commands with qt4 designer.

I want to get rid of zenity (or yad, kdialog) because is very limited to a more advanced windows and still use all the rest bash functions that there already there in the bash shell script, is it possible?

Best Answer

There are no "GTK commands" in the way there are GTK+ functions in Python. GTK+ is a library with bindings in several languages, but it doesn't have executable commands for the functions it provides. You can try to do parts of what the GTK+ API can do via some external commands:

zenity, yad, etc. for showing dialog boxes
xsel or xclip to access the clipboard
wmctrl for controlling application windows

But the vast majority of GTK+ functionality can't be accessed by commands.

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Ubuntu – What do these commands from a shell script do

As I mentioned in my comment there are some vital pieces missing here and these commands together don't quite make sense, but I will go over them.

if [ ! -w "." ]: . represents the current directory. -w tests if it is writeable. ! negates the test (so the statement returns true if the directory is not writeable vs the other way around).
ps -d | grep -ic -e firefox -e gedit: ps -d prints all processes minus session starters. grep searches the piped output from ps for patterns (which we'll get to in a minute). -i makes the search case insensitive. -c outputs a count of the matches instead of the actual matches. -e takes the search expressions. In this case firefox and gedit. So if neither FF nor gedit is running the command will output 0. If one of them is running it will output 1. If both are running it will output 2.
firefox &: Start firefox. & forces the process into the background.
firefoxPid=$!: In a bash shell script $! holds the job number of the last background command. firefoxPid is a variable. So what's happening here is the job number of the last background command (which happens to be firefox's) is stored to a variable named firefoxPid.

Ubuntu – Best practices on using sudo in a bash script

Regarding method 2, it's easier to use a function. For example:

#!/bin/bash

func(){
    echo "Username: $USER"
    echo "    EUID: $EUID"
}

export -f func

func
su "$SUDO_USER" -c 'func'

$SUDO_USER is the sudoer's username. You could also use $(logname) in its place.

Running on my machine:

$ sudo bash test.sh
[sudo] password for wja: 
Username: root
    EUID: 0
Username: wja
    EUID: 1000

Best Answer

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