0
votes
1answer
26 views

Shell Command that Combines chmod and chgrp

Is there a combined variant for chmod and chgrp that sets both user and groups permissions in one single system call for each file? This is useful for increasing performance on slow data layers such ...
3
votes
3answers
180 views

Why is the setuid permission bit not set for mkdir in modern Unix systems?

Bach states the following: mkdir is a typical setuid program. Only a process with Effective UID root can create a folder. (Section 7.6, Page 229) I checked the permissions on it on Ubuntu ...
2
votes
1answer
692 views

Why do strace/truss sometimes 'fix' stuck processes?

Sometimes you have a stuck process that's been stuck for a while, and as soon as you go to poke at it with strace/truss just to see what's going on, it gets magically unstuck and continues to run! So ...