Can a variable's name contain `-`?
138043
What are the specific naming conventions for variables in bash shell scripting language?
110967
how to grep a variable name
119933
Can I use a variable in a Bash brace expansion?
13152
How can you print a variable name in python?
121532
Is `-` used only with cd?
128110
Change Operator Precedence of --> operator
122288
Variable with colon dash ${VAR:-}
38906
What is the "-->" operator in C/C++?
86808
How to determine if a string is a valid variable name?
50705
What is ->() { } in Ruby?
76870
Internal Representation of ?name and ??name
83608
Is it possible to dereference variable id's?
52730
How can I use a variable as a variable name in Perl?
73011
Unix tools: what if a file is named minus something?
32547
Ruby variable name with double underscores
147445
What does dash "-" at the end of a command mean?
50136
Using "${a:-b}" for variable assignment in scripts