Advanced Exercises


How can you create a file named i? Which techniques do not work, and why do they not work? How can you remove the file named i?


Suppose that the working directory contains a single file named andor. What error message do you get when you run the following command line?

$ mv andor and\/or 

Under what circumstances is it possible to run the command without producing an error?


The ls i command displays a filename preceded by the inode number of the file (page 104). Write a command to output inode/filename pairs for the files in the working directory, sorted by inode number. (Hint: Use a pipe.)


Explain the error messages displayed in the following sequence of commands:

$ ls -l total 0 drwxrwxr-x  3 zach  zach  102 Mar  2 17:57 dirtmp $ ls dirtmp $ rmdir dirtmp rmdir: dirtmp: Directory not empty $ rm dirtmp/* rm: dirtmp/*: No such file or directory 


Is it possible to distinguish a file from a hard link to a file? That is, given a filename, can you tell whether it was created using an ln command? Explain.

A Practical Guide to UNIX[r] for Mac OS[r] X Users
A Practical Guide to UNIX for Mac OS X Users
ISBN: 0131863339
EAN: 2147483647
Year: 2005
Pages: 234

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