I am quite unsure of how echo command works in the following two scenarios
45662
What is `$?` ? Is it a variable?
112802
for loop working in CMD prompt but not in batch file - for loop was copy pasted
9467
How can we run a command stored in a variable?
59642
Strange echo, print behaviour in PHP?
39392
Elegant solution to echo to either stdout or file in bash
16155
Pinging an IP address using PHP and echoing the result
109969
i have tried to display a button in echo tag for redirection but it dosen't perform any action
61234
Difference between executing multiple commands with && and ;
11087
How can I echo a newline in a batch file?
114373
Echoing a string in bash with brackets surrounding it returns 'b'
80950
Why does "echo '2' . print(2) + 3" print 521?
61335
Difference between php echo and return in terms of a jQuery ajax call
111133
Difference between 'ls' and 'echo $(ls)'
28713
`time echo` got no output
57124
Does echo -e make a difference when quotes are not used?
38529
How do I get help for "echo" or other bash commands?
109567
How does operator  work when comparing two strings?