Can someone explain exactly what is happening with single quotes and double quotes with process IDs in the below example?
64037
Difference between ' and " on command line (bash)?
62400
The Bash command :(){ :|:& };: will spawn processes to kernel death. Can you explain the syntax?
148772
Backslashes in single quoted strings vs. double quoted strings
41358
What's the difference between double quotes and single quote in C#
111655
What is the difference between single-quoted and double-quoted strings in PHP?
65718
What's the terminal command for finding out a process's id
81883
why debug statement show Id instead of name while test class execution?
51432
What does the "$#" special parameter mean in Bash?
54288
Command line processing - tokens and metacharacters
32755
Why do backslashes appear twice?
127087
What does the "|" (single pipe) do in JavaScript?
29650
The process substitution output is out of the order
100678
Understanding find(1)'s -exec option (curly braces & plus sign)
119246
How can a Java program get its own process ID?
25478
What does ${1+"$@"} mean in a shell script, and how does it differ from "$@"?
133569
What does the double slash mean in `${f// /_}`?
20567
Why does shell ignore quoting characters in arguments passed to it through variables?