ugh.book

X: On the Road to Nowhere 143 Official Notice, Post Immediately X Dangerous Virus! First, a little history: The X window system ...

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Part 2: Programmer’s System? ...

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8 csh, pipes, and find Power Tools for Power Fools I have a natural revulsion to any operating system that shows so little plann ...

148 csh, pipes, and find options that control everything from sort order to the number of columns in which the printout appears— ...

The Shell Game 149 Hardware stores contain screwdrivers or saws made by three or four differ- ent companies that all operate sim ...

150 csh, pipes, and find to any C-shell will cause it to crash immediately? Do you know why? Questions to think about: What doe ...

The Shell Game 151 Simple quoting barely works in the C Shell because no contract exists between the shell and the programs it i ...

152 csh, pipes, and find Date: Mon, 7 May 90 18:00:27 -0700 From: Andy Beals <[email protected]> Subject: Re: today’s ...

The Shell Game 153 It says, “If there is at least one argument ( ${1+ ), then substitute in all the arguments ( “$@” ) preservin ...

154 csh, pipes, and find Now suppose that “ftp” was a symbolic link (bear with me just a while longer). Suppose that it points t ...

Shell Programming 155 Hello, class. Today we are going to learn to program in “sh.” The “sh” shell is a simple, versatile progra ...

156 csh, pipes, and find Hmm, perhaps not so robust after all. Unix file names can have any character in them (except slash). A ...

Shell Programming 157 There is another big problem as well, one that we’ve been glossing over from the beginning. The Unix file ...

158 csh, pipes, and find (BTW, your typical TeX source file gets classified as “ascii text” rather than “English text,” but I di ...

Shell Programming 159 endif produces this error: foo: Undefined variable. To get the script to “do the right thing,” you have to ...

160 csh, pipes, and find fact, even if it prints an error message to the screen, it still reports “good news,” i.e., status 0. T ...

Pipes 161 programs to be built out of simpler programs. Pipes allow programs to be used in unplanned and unanticipated ways. Pip ...

162 csh, pipes, and find Pipes are good for simple hacks, like passing around simple text streams, but not for building robust s ...