define $ right parameter with a variable in R
84325
Dynamically select data frame columns using $ and a character value
42608
Script-r Symbol
5639
No \xrightrightarrow[a]{b}?
59672
What are the special dollar sign shell variables?
43255
grep on a variable
61704
How to use variable inside parameter $_GET? example: ($_GET[$my_var])
135008
Using shell variables for command options
57554
Dynamic variable names in Bash
105643
Powershell Parameters
99528
Right Parenthesis Expected
129593
Syntax with pound and percent sign after shell parameter name
10896
Missing $ inserted in maths mode
99589
Use variable inside bash brace expansion
102203
Elegant manipulation of the variables list
123684
Test for non-zero length string in Bash: [ -n "$var" ] or [ "$var" ]
18722
Should I use $* or $@?
52730
How can I use a variable as a variable name in Perl?