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25 lines
545 B
Bash
25 lines
545 B
Bash
$ go build command-line-subcommands.go
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# First invoke the foo subcommand.
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$ ./command-line-subcommands foo -enable -name=joe a1 a2
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subcommand 'foo'
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enable: true
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name: joe
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tail: [a1 a2]
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# Now try bar.
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$ ./command-line-subcommands bar -level 8 a1
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subcommand 'bar'
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level: 8
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tail: [a1]
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# But bar won't accept foo's flags.
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$ ./command-line-subcommands bar -enable a1
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flag provided but not defined: -enable
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Usage of bar:
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-level int
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level
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# Next we'll look at environment variables, another common
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# way to parameterize programs.
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