Solaris Transition Guide

/usr Directory

The SunOS release 5.7 /usr directory contains sharable files and executables provided by the system. Table 9-10 describes the subdirectories that have been added to the SunOS release 5.7 /usr directory.

Table 9-10 Additions to the /usr Directory




C compilation systems 


Executables and other files used by admintool

Table 9-11 shows files that were in the SunOS release 4 /usr directory but have been moved in the SunOS release 5.7 software.

Table 9-11 Files Changed in the /usr Directory

SunOS release 4 Location 

SunOS release 5.7 Location 










Contents removed  







Appendix E, / and /usr File Systems Changes, contains tables with detailed information about the directories and files in each of these file systems.