33 lines
772 B
Lua
33 lines
772 B
Lua
--[[Lua implementation of the UN*X yes command--]]
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local shell = require("shell")
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local args, options = shell.parse(...)
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if options.V or options.version then
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io.write("yes v:1.0-3\n")
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io.write("Inspired by functionality of yes from GNU coreutils\n")
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return 0
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end
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if options.h or options.help then
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io.write("Usage: yes [string]...\n")
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io.write("OR: yes [-V/h]\n")
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io.write("\n")
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io.write("yes prints the command line arguments, or 'y', until is killed.\n")
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io.write("\n")
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io.write("Options:\n")
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io.write(" -V, --version Version\n")
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io.write(" -h, --help This help\n")
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return 0
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end
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local msg = #args == 0 and 'y' or table.concat(args, ' ')
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msg = msg .. '\n'
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while io.write(msg) do
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if io.stdout.tty then
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os.sleep(0)
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end
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end
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return 0
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