(Jun 2, 2019 03:18 AM)Deathbox Wrote:  Open command prompt or linux terminal and type

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ping google.co.uk

If it's a shell script:

Code

#!/usr/bin/env
ping google.co.uk
sleep 3

Windows Batch/CMD script (.cmd/.bat):

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ping google.co.uk
pause

(Jun 3, 2019 05:32 AM)hack3rcon Wrote:  Thanks.
Why "sleep 3"? I like to see the result until I canceled it.

(Jun 3, 2019 06:07 AM)elbone Wrote:  That's for a Shell script.

(Jun 3, 2019 07:40 AM)Deathbox Wrote:  Try sleep integer in the terminal. It's just how long to wait in seconds. I added that line so you can see the result before the application crashes. You need to pause it or add a time limit which is what you've done with the sleep command. If you want a pause button similar to pause function in batch on MS Windows, you could use the read command instead of a time limit.

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read -p "This is a message. push a button to resume"

---

Yes, @OP. It's too late for me to edit my original post but I meant the bash shell (assuming you're using bash) on most Linux systems in the first code snippet that should be saved as a .sh file; as opposed to the following code snippet for a MS Windows batch file which needs the extension .CMD or .BAT. Sorry about the mix up.

(Jun 7, 2019 04:05 AM)hack3rcon Wrote:  When I execute below commands as .sh file then it show me a black window:

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#!/usr/bin/env
ping google.co.uk
sleep 3

But when I remove

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#!/usr/bin/env

then its worked!!!

Spoiler (Click to View)

(Jun 7, 2019 05:58 AM)Deathbox Wrote:  My bad buddy, yeah the shebang line should be #!/usr/bin/env python. It can also be #!/usr/bin/python but the first is recommended. If you don't use either, I believe it uses /usr/bin/python by default. Using the env just means that it will use the first python interpreter in the $path. You can use the following to set the default interpreter. It's common to have 2.7 and 3.x installed.

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sudo update-alternatives --config python

Or you can do it manually specifying which interpreter

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#!/usr/bin/python
#!/usr/bin/python3

If you take a look in /usr/bin/ you can see the packages installed on your system. In the image below you can see I have several versions of Python located at /usr/bin and so I would be able to use any of them.

Spoiler (Click to View)

(Jun 7, 2019 10:46 PM)hack3rcon Wrote:  It is a bash but why use Python?

(Jun 8, 2019 09:11 AM)Deathbox Wrote:  I tend to have threads open from the Python section, I'm very sorry lol. Yeah for bash, it's just

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#!/usr/bin/env bash

I'll leave the previous reply, as it explains why you should use env.