Commands by unixhome

Commands by unixhome (6)

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Find the real procesor speed when you use CPU scaling [cpuspeed]

We don't use CPU scaling, but just in case you do, there is something interesting to note. If you look at the /proc/cpuinfo, the speed listed is current running speed of the processors and not the real speed of the chip. Show Sample Output
This is sample output - yours may be different.
```
Processor (or core) running speed is: 1000.000
Processor (or core) running speed is: 1000.000
Processor (or core) running speed is: 1000.000
Processor (or core) running speed is: 1000.000
Processor (or core) running speed is: 1000.000
Processor (or core) running speed is: 1000.000
Processor (or core) running speed is: 1000.000
Processor (or core) running speed is: 1000.000
Processor real speed is: 2800 MHz
Processor real speed is: 2800 MHz
Processor real speed is: 2800 MHz
Processor real speed is: 2800 MHz
```
2

awk -F": " '/cpu MHz\ */ { print "Processor (or core) running speed is: " $2 }' /proc/cpuinfo ; dmidecode | awk -F": " '/Current Speed/ { print "Processor real speed is: " $2 }'

unixhome · 2010-02-19 21:20:18 164
See your current RAM frequency

man dmidecode [look for type] Show Sample Output
This is sample output - yours may be different.
```
[root@ronfedora ~]# dmidecode -t 17 | awk -F":" '/Speed/ { print $2 }'
 533 MHz
 533 MHz
```
10

dmidecode -t 17 | awk -F":" '/Speed/ { print $2 }'

unixhome · 2010-02-19 12:15:13 6
Function to split a string into an array
This is sample output - yours may be different.
0

Split() { SENT=${*} ; sentarry=( ${SENT} ) ; while [[ ${#sentarry[@]} -gt 0 ]] ; do printf "%s\n" "${sentarry[0]}" ; sentarry=( ${sentarry[@]:1} ) ; done ; }

unixhome · 2010-02-09 20:32:56 3
How many days until the end of the year
This is sample output - yours may be different.
4

echo "There are $(($(date +%j -d"Dec 31, $(date +%Y)")-$(date +%j))) left in year $(date +%Y)."

unixhome · 2010-02-06 00:15:40 13
Test file system type before further commands execution

Exclude 400 client hosts with NFS auto-mounted home directories. Easily modified for inclusion in your scripts. Show Sample Output
This is sample output - yours may be different.
```
DIR=. ; FSTYPE=$(df -TP ${DIR} | grep -v Type | awk '{ print $2 }') ; echo "${FSTYPE}"
ext3
```
1

DIR=. ; FSTYPE=$(df -TP ${DIR} | grep -v Type | awk '{ print $2 }') ; echo "${FSTYPE}"

unixhome · 2009-12-22 14:01:50 3
Sometimes you just want a quick way to find out if a certain user account is locked [Linux].
This is sample output - yours may be different.
0

awk -F":" '{ print $1 }' /etc/passwd | while read UU ; do STATUS=$(passwd -S ${UU} | grep locked 2>/dev/null) ; if [[ ! -z ${STATUS} ]] ; then echo "Account ${UU} is locked." ; fi ; done

unixhome · 2009-12-18 14:28:15 11

What's this?

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Watch the progress of 'dd'

dcfldd is a forensic version of dd that shows a process indicator by default.

Top 10 Memory Processes

It displays the top 10 processes sorted by memory usage

convert hex to decimal ; decimal to hex

Use a decoy while scanning ports to avoid getting caught by the sys admin :9

Scan for open ports on the target device/computer (192.168.0.10) while setting up a decoy address (192.168.0.2). This will show the decoy ip address instead of your ip in targets security logs. Decoy address needs to be alive. Check the targets security log at /var/log/secure to make sure it worked.

Dump a web page

Useful to browse dangerous web sites.

Clone perms and owner group from one file to another

Copy both perms and owner group from one file to another.

Find the annual salary of any White House staffer.

Query the Socrata Open Data API being used by the White House to find any employee's salary using curl, grep and awk. Change the value of the search parameter (example uses Axelrod) to the name of any White House staffer to see their annual salary.

Remote execute command as sudoer via ssh

Example: remote install an application(wine). sshpass -p 'mypssword' ssh -t mysshloginname@192.168.1.22 "echo 'mypassword' | sudo -S apt-get install wine" Tested on Ubuntu.

Create the signature base string required for a Twitter stream feed

This is the SECOND command in a set for five that are needed for a Twitter stream feed. This command creates variable "b", the so-called "base string" required for oauth in Twitter stream feed requests. (The 256 char limit prevents giving it a better name) We use five environment variables created by a previous step: id, k1, once, ts and k3. The five environment variables are created in a separate command, please see my other commands. For more information on the signature base string, see dev.twitter.com/apps, click on any app (or create a new one) and then go to the "OAuth Tool" tab.

bash auto-complete your screen sessions

this bash command sets it so that when you type "screen ", it searches your running screens, and present valid auto-complete choices. The output is . Note: You must have programmable completion enabled. Check with "shopt progcomp", set with "shopt -s progcomp"

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