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Lecture 20: Shell Programming ( ch 10)

Lecture 20: Shell Programming ( ch 10). IT244 - Introduction to Linux / Unix Instructor: Bo Sheng. Expressions. Logical operators true, false true; echo $?; false; echo $? !, ==, != ((1==1)); echo $?; echo $((1==1)) ((1!=1)); echo $?; echo $((1!=1)) &&, || true && false; echo $?

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Lecture 20: Shell Programming ( ch 10)