February 2004
Intermediate to advanced
383 pages
11h 49m
English
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Working with Files and Directories
You can use the following tools to compare, copy, and examine files.
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cat Concatenates and displays files.
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cd Changes directory.
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chflags Changes file flags.
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chmod Changes access modes on files.
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cmp Compares two files, byte-by-byte.
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comm Compares two sorted files.
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cp Copies files.
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diff Compares two files, line-by-line.
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diff3 Compares three files.
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file Determines a file’s type.
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head Shows the first few lines of a file.
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less Serves as an enhanced alternative to
more.-
ln Creates symbolic or hard links.
Tip
Symbolic and hard links are not the same as Carbon aliases that you create in the Finder (File → Make Alias). Unix programs cannot follow Carbon aliases, but all Mac OS X applications (Carbon, Cocoa, Classic, and Unix) can follow symbolic or hard links.
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ls Lists files or directories.
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mkdir Makes a new directory.
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more Displays files one screen at a time.
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mv Moves or renames files or directories.
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patch Merges a set of changes into a file.
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pwd Prints the working directory.
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rcp Insecurely copies a file to or from a remote machine. Use
scpinstead.-
rm Removes files.
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rmdir Removes directories.
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scp Secures alternative to
rcp.-
sdiff Compares two files, side-by-side and line-by-line.
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split Splits files evenly.
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tail Shows the last few lines of a file.
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vis Displays nonprinting characters in a readable form.
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unvis Restores the output of
visto its original form.-
wc Counts lines, words, and characters.
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zcmp Compares two compressed files, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.