Linux commands used in the collect-support-data tool

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:

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.