Is `$(< file)` completely bash, or does `$(< file)` really depend on `cat`?
91449
Understanding Bash's Read-a-File Command Substitution
909
What is this shell/Bash syntax: someVariable=someValue someCommand
45662
What is `$?` ? Is it a variable?
137387
Which bash will expand  {1..$VAR} in the same way that zsh does
83225
Difference between single and double square brackets in Bash
5754
How to make bash substitution $(<"filename") silent
61676
Syntax of bash alias definition
70911
What does env x='() { :;}; command' bash do and why is it insecure?
11975
What does $@ mean in a shell script?
18722
Should I use $* or $@?
22976
What is the difference between sourcing ('.' or 'source') and executing a file in bash?
9976
What is "declare" in Bash?
2583
Quoting within $(command substitution) in Bash
41303
When do we need curly braces around shell variables?
83409
Difference between $ and # in Linux environment
75335
Bash test: what does "=~" do?
119229
Why does "grep '.*[s]' file" work and "grep .*[s] file" doesn't?