Linux shell Programming

Programming Languages:

Machine language

Assembly

Advanced Language:

Static language: Compiled language

Strongly typed (variable)

Convert into executable format in advance

such as: C, C + +, JAVA, C #

Dynamic language: Interpreted language, on the fly

Weak type

Edge Interpretation Side Execution

such as: ASP,. NET, PHP, SHELL, Python, Perl

Process oriented: Shell,c

Object-oriented: java,python,perl,c++

Variables: Memory space

Memory: Addressable storage unit

Variable type: Determine the storage format and length of the data in advance

Character

Numerical

Integral type

Floating point type:

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