21 lines
666 B
Awk
21 lines
666 B
Awk
BEGIN {
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# Variables are dynamically typecast, and do not need declaration prior to use:
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fruit = "banana" # create a variable, and fill it with a string
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a = 1 # create a variable, and fill it with a numeric value
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a = "apple" # re-use the above variable for a string
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print a, fruit
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# Multiple assignments are possible from within a single statement:
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x = y = z = 3
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print "x,y,z:", x,y,z
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# "dynamically typecast" means the content of a variable is used
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# as needed by the current operation, e.g. for a calculation:
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a = "1"
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b = "2banana"
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c = "3*4"
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print "a,b,c=",a,b,c, "c+0=", c+0, 0+c
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print "a+b=", a+b, "b+c=", b+c
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}
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