Linux Study Notes-Summary

Linux Study Notes-Summary-general Linux technology-Linux technology and application information. For more information, see the following. I. device management in Linux is in the form of files. Each device has a file, and all these files are stored in/dev.

2. Solutions for failure to start a large hard drive after Linux is installed. When installing Linux, separate A/boot partition, set the size to 100 MB, and put it at the beginning of all partitions. In this way, the pilot partition can be placed within 1024 cylinders, so that normal boot can be performed. Once the system is booted up, the Linux kernel can replace the BIOS to manage the hard disk, so that the large hard disk can be detected successfully. We recommend that you use this method to separate an independent/boot partition when installing Linux, even if you do not use a large hard disk or use a large hard disk, but there is no boot problem.

3. in Linux, a "." is included in front of the hidden file name. For example, ". ssh ".

4. If you want to allow people in the same group or other persons to enter a directory, you must add the executable attributes of the directory. Otherwise, the directory cannot enter. For example, drwxr -- r -- 3 root 4096 Jun 25. ssh. In this case, everyone except the root user cannot access the. ssh directory unless they change repentance to "drwxr-xr-x ".

5. Several Special directories in Linux
. Indicates the current directory
... Indicates the directory of the previous layer.
-Represents the previous working directory.
~ Represents the Home Directory of the current user
~ Hymyg represents the main directory of hymyg