文件名称:14406555-Shell-Programming
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- Internet/网络编程
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- [PDF]
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- 2012-11-26
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ShellProgramming
Basically, a shell scr ipt is a text file with Unix
commands in it.
u Shell scr ipts usually begin with a #! and a shell
name
– For example: #!/bin/sh
– If they do not, the user s current shell will be used
u Any Unix command can go in a shell scr ipt
– Commands are executed in order or in the flow
determined by control statements.
u Different shells have different control structures
– The #! line is very important
– We will write shell scr ipts with the Bourne shell (sh)
Basically, a shell scr ipt is a text file with Unix
commands in it.
u Shell scr ipts usually begin with a #! and a shell
name
– For example: #!/bin/sh
– If they do not, the user s current shell will be used
u Any Unix command can go in a shell scr ipt
– Commands are executed in order or in the flow
determined by control statements.
u Different shells have different control structures
– The #! line is very important
– We will write shell scr ipts with the Bourne shell (sh)
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14406555-Shell-Programming.pdf