About this trail:
a Unix/Linux emulator that runs in Windows
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a good reference with some basic Unix commands
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a good explanation of using pipes in unix
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vi is a text editor that comes standard with Unix (and typically Linux)
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To start the X-windows program, type startxwin.sh at the Cygwin command prompt.
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redirecting command input from a file or output to a file
more on redirection here
redirecting standard error, etc. (stdin, stdout, and stderr are file descriptors)
more on redirection here
redirecting standard error, etc. (stdin, stdout, and stderr are file descriptors)
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