6 Answered Questions for the topic Scripting

Scripting Linux Bash Command Line

07/05/19

#### How to count lines in a document?

I have lines like these, and I want to know how many lines I actually have... 09:16:39 AM all 2.00 0.00 4.00 0.00 0.00 0.00 0.00 0.00 94.00 09:16:40 AM all 5.00 0.00 0.00 4.00 0.00 0.00 0.00... more
Scripting Linux Bash Shebang

06/04/19

#### Why do you need to put #!/bin/bash at the beginning of a script file?

I have made [Bash][1] scripts before and they all ran fine without this at the beginning. What's the point of putting it in? Would things be any different? Also, how do you pronounce #? I know... more
Scripting Linux Bash Shell

05/06/19

#### How do I prompt for Yes/No/Cancel input in a Linux shell script?

I want to pause input in a shell script, and prompt the user for choices. The standard 'Yes, No, or Cancel' type question. How do I accomplish this in a typical bash prompt?
Scripting Linux Bash Shell

05/04/19

#### How do I know the script file name in a Bash script?

How can I determine the name of the Bash script file inside the script itself? Like if my script is in file runme.sh, then how would I make it to display "You are running runme.sh" message... more
Scripting Linux Bash Heredoc

04/25/19

#### How does "cat << EOF" work in bash?

I needed to write a script to enter multi-line input to a program (psql). After a bit of googling, I found the following syntax works: cat << EOF | psql ---params BEGIN; pg_dump... more
Scripting Linux Unix Bash

03/26/19

#### How do I get cURL to not show the progress bar?

I'm trying to use cURL in a script and get it to ***not*** show the progress bar. I've tried the -s, -silent, -S, and -quiet` options, but none of them work. Here's a typical command I've... more

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