Simple Use of Netty Framework to Realize socket Communication
As an aside, many people call the NIO provided by JDK 1.4 asynchronous non-blocking I/O; in fact, it is not. Strictly speaking, it can only be called non-blocking I/O. In NIO 2.0 provided by JDK 1.7, an asynchronous socket channel Channel is added, which is the real asynchronous non-blocking I/O. The following table com ...
Added by HyperD on Wed, 15 May 2019 16:44:34 +0300
Basic Operation of Linux (4) - File Permission
I. The Significance of the Existence of Document Authority
One of the lowest security settings in the system is to ensure that files can be manipulated by available users.
2. Reading of File Permissions
ls -l file
ls -l dir
ll file
##(ll = ls -l)
ll -d dir
3. Reading of File Permissions
- | rw-rw-r-- | 1 | kiosk ...
Added by ryans18 on Tue, 14 May 2019 20:00:48 +0300