Shell as Interpreter (cont)
Basic operations in shell scripts are a sequence of words.
CommandName Arg1 Arg2 Arg3 ...
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A word is defined to be any sequence of:
- non-whitespace characters (e.g.
x, y1, aVeryLongWord )
- characters enclosed in double-quotes (e.g.
"abc", "a b c" )
- characters enclosed in single-quotes (e.g.
'abc', 'a b c' )
We discuss the different kinds of quote later.
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