Appendix B: Command-line Reference

This appendix provides some basic command-line tricks that ease system administration. Many times a command may already exist for some function that you need to perform. Instead of reinventing the wheel, check out this section. Or if you're new to the Unix environment, take a peek at some of the command-line power missing from the Windows shell. Some of these commands can help you share the results gathered from one of the tools in this book with some other tool, such as generating a target list for nmap.

DIRECTORY NAVIGATION

Capability	Unix and Cygwin
Finds a file or directory name within a directory or its subdirectories	find dir name file example: find ./ -name pass.txt
Finds a file or directory glob	find dir name " file glob " example: find /etc/ -name "*~"
Finds files only	find dir name " file glob " type f
Finds files and executes a command on them	find dir name " file glob " type f exec cmd ˜{} \; example: find / -name "*.txt" type f exec chmod o-w ˜{} \;
Searches for any file that contains some pattern	grep r pattern * example: grep r passwd= *