Linux Commands

Quick docker container to have a hoon

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docker run -ti --name ubuntu-c ubuntu
docker start -i ubuntu-c

Update & Upgrade

pt-get update downloads the package lists from the repositories and “updates” them to get information on the newest versions of packages and their dependencies.

apt-get upgrade will fetch new versions of packages existing on the machine if APT knows about these new versions by way of apt-get update 

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apt-get update
apt-get upgrade

--- Install application `zip` & `unzip`. Check version and example use.
apt-get install zip unzip
zip --version
unzip content.zip

--- applications
python3, python
nano

Misc Commands and magic

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--- Misc Commands

ll                                ~ list files (simliar to DIR)
la                                ~ list files horizontally
rm -r [DIRECTORY NAME]            ~ delete directory
rm -fm [DIRECTORY NAME]           ~ delete directory with files in it
mkdir [DIRECTORY NAME]            ~ create directory
sudo ./sbin/shutdown -r now       ~ reboot
sudo ./sbin/shutdown -h now       ~ omit now to schedule a shutdown
sudo -i                           ~ switch to the root user

--- Hardware Related

htop                              ~ system-monitor process-viewer and process-manager
top                               ~ this is like the windows task manager
grep -c ^processor /proc/cpuinfo  ~ CPU core count
free -m                           ~ displays memory usage

Text Editor

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nano postgres.sh                 ~ edit and create the file
chmod +x postgres.sh             ~ mark as executable
./postgres.sh                    ~ runs the script
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vm foo.txt
ESC : wq                         ~ save and exit
ESC : q!                         ~ exit dont save