| tail |
Displays the last few lines of a file. Tails the
/var/logs/messages directory. |
| uname |
Prints system, machine, and operating system information. |
| ps |
Prints a snapshot of the current active processes. |
| df |
Prints the amount of available disk space for file systems in 1024-byte
units. |
| cat |
Concatenates the following files and prints to standard output:
- /proc/cpuinfo
- /proc/meminfo
- /etc/hosts
- /etc/nsswitch.conf
- /etc/resolv.conf
|
| netstat |
Prints the state of network interfaces, protocols, and the kernel routing
table. |
| ifconfig |
Prints information on all interfaces. |
| uptime |
Prints the time the server has been up and active. |
| dmesg |
Prints the message buffer of the kernel. |
| vmstat |
Prints information about virtual memory statistics. |
| iostat |
Prints disk I/O and CPU utilization information. |
| mpstat |
Prints performance statistics for all logical processors. |
| pstack |
Prints an execution stack trace on an active processed specified by the
pid. |
| top |
Prints a list of active processes and how much CPU and memory each process is
using. |