Books like Understanding UNIX/LINUX Programming
Bruce Molay
Understanding UNIX/LINUX Programming is 552 pages, about 10 hours 7 minutes at 250 words a minute.
9 books to read next
How long each takes
Linux 17.5 h 
Operating Systems 12.2 h 
Linux 4.1 h 
The Linux Progamming Interface 27.6 h 
UNIX and Linux System Administration Handbook 23.5 h 
Essential System Administration 8.1 h 
The UNIX Programming Environment 6.6 h 
Advanced Programming in the Unix Environment 17.3 h 
Practical C Programming 7.3 h Bar height shows length. Estimated at 250 words a minute.