In this series of mini posts I will teach you a Linux lesson every day, it can be command , tricks , how to. The post will cover for beginner to advanced level. Welcome to Linux terminal.
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bc
bc is a command line arithmetic calculator. It is a an arbitrary calculator language which means that it is an interactive calculator programming language. We can use expressions,variable,print,decision make statement etc
a=13 print a a<1 0 a>12 1
A comparison with >,< return 0 if it fails or 1 if it it true, I think that make sense.
We can also use the bc with output statement as follows
echo '100*9'|bc
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