How can I call an external command (as if I'd typed it at the Unix shell or Windows command prompt) from within a Python script?
I was playing with cmd.exe, but in its help I didn't find any info, how to define arrays. I have found, how to define simple variables: set a = 10 echo %a% But, I want to create arrays, linked lis...
In Bash, what are the differences between single quotes ('') and double quotes ("")?
Could someone tell me whether or not I should wrap quotes around variables in a shell script? For example, is the following correct: xdg-open $URL [ $? -eq 2 ] or xdg-open "$URL" [ "$?" -eq "2" ...
I am working on a simple scripting project for work that involves the use of Bash. I have a pretty simple script that is something like the following: #!/bin/bash VAR1="$1" VAR2="$2" MOREF='sudo r...
I found some ways to pass external shell variables to an awk script, but I'm confused about ' and ". First, I tried with a shell script: $ v=123test $ echo $v 123test $ echo "$v" 123test Then trie...
I have this script called test.sh: #!/bin/bash STR = "Hello World" echo $STR when I run sh test.sh I get this: test.sh: line 2: STR: command not found What am I doing wrong? I look at extremely...
I have this string stored in a variable: IN="email@example.com;firstname.lastname@example.org" Now I would like to split the strings by ; delimiter so that I have: ADDR1="email@example.com" ADDR2="firstname.lastname@example.org" I don't n...
Here are a series of cases where echo $var can show a different value than what was just assigned. This happens regardless of whether the assigned value was "double quoted", 'single quoted' or unquote...
It seems to me like the files run the same without that line.