Common Commands under Linux

Collect some commands that are not often used but are important and will continue to be updated ...

1. See how many bits are in the current Ubuntu system

Uname-mi

Print Result: x86_64 (64-bit), x86_32 (32-bit)

2. View the current Ubuntu system version number

Cat/etc/issue

Print Result: Ubuntu 12.04 LTS \ \l

3. View the use of the system hard disk and the external mounted disk

Filesystem Size used Avail use% mounted on

/DEV/SDA1 909G 166G 698G 20%/(System HDD)

Udev 3.9G 4.0K 3.9G 1%/dev
Tmpfs 792M 908K 791M 1%/run
None 5.0M 0 5.0M 0%/run/lock
None 3.9G 6.0M 3.9G 1%/RUN/SHM
/dev/sdb 1.9G 1.5G 442M 77%/media/jackie(externally mounted USB drive)

Common Commands under Linux