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View gist:3bf1394e5ac784b565dd04c1ee9a7d6e
## Remove all packages from the HDP-2.4 repository
yum remove $(yum list installed | grep HDP-2.4 | awk '{ print $1 }')
rockstarartist / hamradio-GeneralLicenseExam.txt
Last active Aug 9, 2016
Ham Radio Studying for General License Exam
View hamradio-GeneralLicenseExam.txt
QRL * Are you busy? I am busy (or busy with....). Please do not interfere.
QRM * Are you being interfered with? I am being interfered with.
QRN * Are you troubled by static? I am troubled by static.
QRO * Must I increase power? Increase power.
QRP * Must I decrease power? Decrease power.
QRQ * Must I send faster? Send faster ... (words per min.).
QRS * Must I send more slowly? Transmit more slowly ... (w.p.m.).
QRT * Must I stop transmission? Stop transmission.
QRU * Have you anything for me? I have nothing for you.
View SPSSError.txt
Traceback (most recent call last):
File "/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-INSTALL/scripts/", line 37, in <module>
File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/", line 219, in execute
File "/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-INSTALL/scripts/", line 33, in hook
File "/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-INSTALL/scripts/", line 66, in install_repos
_alter_repo("create", params.repo_info, template)
File "/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-INSTALL/scripts/", line 34, in _alter_repo
rockstarartist / hamradio-information.txt
Last active Jul 15, 2016
HAM Radio Technician Test Prep
View hamradio-information.txt
There are only 3 ITU regions, 1, 2, and 3
IRLP = Internet Radio Linking Project
The aim of the IRLP is link radio systems separarted by long distance
without the use of expensive leased lines, satellites, or controllers.
IRLP uses VOIP and the internet.
The louder the voice signal in an FM transmitter the greater the frequency
deviation of the modulator. If you are over deviating, you need to reduce
the amplitude of your voice.
View HelpfulGitCommands.txt
// You effed up your master branch, because you stupidly commited to it,
// and you need to reset it to the remote master:
git fetch origin
git reset --hard origin/master