uptime

The three load average values are 1, 5 and 15 minutes.

$ uptime
 15:29:28 up 20:23,  0 users,  load average: 5.08, 1.49, 0.51

stress

Stress your system in different ways.

$ stress --cpu 8

Number of processors

$ make -j $(nproc)

Synonyms for localhost

localhost
127.0.0.1
127.0.0.2
127.0.0.3
127.1
0.0.0.0
0 # yep

Move a file out of the way

mv {,_}.bash_history

Verbose time

$ /usr/bin/time -v time
Usage: time [-apvV] [-f format] [-o file] [--append] [--verbose]
       [--portability] [--format=format] [--output=file] [--version]
       [--quiet] [--help] command [arg...]
Command exited with non-zero status 1
        Command being timed: "time"
        User time (seconds): 0.00
        System time (seconds): 0.00
        Percent of CPU this job got: 0%
        Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.00
        Average shared text size (kbytes): 0
        Average unshared data size (kbytes): 0
        Average stack size (kbytes): 0
        Average total size (kbytes): 0
        Maximum resident set size (kbytes): 1472
        Average resident set size (kbytes): 0
        Major (requiring I/O) page faults: 0
        Minor (reclaiming a frame) page faults: 68
        Voluntary context switches: 1
        Involuntary context switches: 0
        Swaps: 0
        File system inputs: 0
        File system outputs: 0
        Socket messages sent: 0
        Socket messages received: 0
        Signals delivered: 0
        Page size (bytes): 4096
        Exit status: 1

Vendor IDs

View the latest on http://standards-oui.ieee.org/oui.txt.

To install on Ubuntu:

sudo apt install --yes arp-scan
get-oui