Download Cygwin User's Guide

Table of Contents
1. Cygwin Overview .......................................................................................................1
1.1. What is it? .........................................................................................................1
1.2. Are the Cygwin tools free software? ................................................................1
1.3. A brief history of the Cygwin project ...............................................................1
1.4. Expectations for UNIX Programmers...............................................................2
1.5. Expectations for Windows Programmers..........................................................2
1.6. Highlights of Cygwin Functionality .................................................................2
1.6.1. Introduction............................................................................................3
1.6.2. Supporting both Windows NT and 9x ...................................................3
1.6.3. Permissions and Security .......................................................................4
1.6.4. File Access .............................................................................................4
1.6.5. Text Mode vs. Binary Mode ..................................................................6
1.6.6. ANSI C Library......................................................................................6
1.6.7. Process Creation.....................................................................................6
1.6.8. Signals....................................................................................................7
1.6.9. Sockets ...................................................................................................8
1.6.10. Select....................................................................................................8
2. Setting Up Cygwin ...................................................................................................10
2.1. Internet Setup ..................................................................................................10
2.1.1. Download Source.................................................................................10
2.1.2. Selecting an Install Directory...............................................................11
2.1.3. Local Package Directory......................................................................11
2.1.4. Connection Method..............................................................................11
2.1.5. Choosing Mirrors .................................................................................12
2.1.6. Choosing Packages ..............................................................................12
2.1.7. Download and Installation Progress ....................................................13
2.1.8. Icons.....................................................................................................13
2.1.9. Post-Install Scripts ...............................................................................13
2.2. Environment Variables....................................................................................13
2.3. Changing Cygwin’s Maximum Memory ........................................................14
2.4. NT security and the ntsec usage ...................................................................15
2.4.1. NT security...........................................................................................16
2.4.2. Process privileges.................................................................................19
2.4.3. File permissions ...................................................................................19
2.4.4. New since Cygwin release 1.1 .............................................................21
2.4.5. The mapping leak.................................................................................23
2.4.6. New acl API .........................................................................................25
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