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Question
In linux, if you have variable NAME, print out "hello NAME", and if NAME is not defined/set, print out: "hello there". Do this in one line of code (i.e. NO if statements/etc).
Answer

echo "hello ${NAME:-there}"

^^ note the special use of parameter expansion above


Question
In linux, if you have variable NAME, print out "hello NAME", and if NAME is not defined/set, print out: "hello there". Do this in one line of code (i.e. NO if statements/etc).
Answer
?

Question
In linux, if you have variable NAME, print out "hello NAME", and if NAME is not defined/set, print out: "hello there". Do this in one line of code (i.e. NO if statements/etc).
Answer

echo "hello ${NAME:-there}"

^^ note the special use of parameter expansion above

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20. Advanced Shell Scripting
everal parameter expansion tricks that you can use to do string manipulation. Most shell programmers never bother with these, probably because they are not well supported by other UNIX systems. <span>${ VAR :- default } This will result in $ VAR unless VAR is unset or null, in which case it will result in default. ${ VAR := default } Same as previous except that default is also assigned to VAR if it is

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