Installation And Usage Of Cheat Sheet
Cheat Sheet
Cheat Sheet is an interactive application which provides different options in an easy understandable form. In this article, we are going to discuss about the Installation and usage of Cheat Sheet command.
To Install Cheat in Linux
It is necessary that our system should possess ' python' and ' pip' . So install Python and pip before starting with the ' cheat' installation.
To install Python
Run the following command to install Python.
On Debian based Systems
# apt-get install Python
On RedHat based Systems
[root@linuxhelp Desktop]# yum install python
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: centos.excellmedia.net
* epel: epel.mirror.net.in
* extras: centos.excellmedia.net
* rpmforge: mirror.oscc.org.my
* updates: centos.excellmedia.net
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package python.x86_64 0:2.6.6-36.el6 will be updated
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Verifying : python-2.6.6-36.el6.x86_64 4/6
Verifying : python-libs-2.6.6-36.el6.x86_64 5/6
Verifying : tkinter-2.6.6-36.el6.x86_64 6/6
Updated:
python.x86_64 0:2.6.6-64.el6
Dependency Updated:
python-libs.x86_64 0:2.6.6-64.el6 tkinter.x86_64 0:2.6.6-64.el6
Complete!
Now the installation of Python is successfully completed.
To Install Pip
Run the following command to install Pip.
On Debian based Systems
# apt-get install python-pip
On RedHat based Systems
[root@linuxhelp Desktop]# yum install python-pip
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: centos.excellmedia.net
* epel: epel.mirror.net.in
* extras: centos.excellmedia.net
* rpmforge: mirror.oscc.org.my
* updates: centos.excellmedia.net
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package python-pip.noarch 0:7.1.0-1.el6 will be installed
--> Finished Dependency Resolution
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Is this ok [y/N]: y
Downloading Packages:
python-pip-7.1.0-1.el6.noarch.rpm | 1.5 MB 00:04
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : python-pip-7.1.0-1.el6.noarch 1/1
Verifying : python-pip-7.1.0-1.el6.noarch 1/1
Installed:
python-pip.noarch 0:7.1.0-1.el6
Complete!
Installation of Pip is completed successfully.
To download and install Cheat
First install git, by running the following command
On Debian based Systems
# apt-get install git
On RedHat based Systems
[root@linuxhelp Desktop]# yum install git
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: centos.excellmedia.net
* epel: epel.mirror.net.in
* extras: centos.excellmedia.net
* rpmforge: mirror.oscc.org.my
* updates: centos.excellmedia.net
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package git.x86_64 0:1.7.1-4.el6_7.1 will be installed
--> Processing Dependency: perl-Git = 1.7.1-4.el6_7.1 for package: git-1.7.1-4.el6_7.1.x86_64
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Verifying : 1:perl-Error-0.17015-4.el6.noarch 2/3
Verifying : git-1.7.1-4.el6_7.1.x86_64 3/3
Installed:
git.x86_64 0:1.7.1-4.el6_7.1
Dependency Installed:
perl-Error.noarch 1:0.17015-4.el6 perl-Git.noarch 0:1.7.1-4.el6_7.1
Complete!
Installation of git is successfully completed.
To install Python Dependencies
Run the following command to install Python dependencies.
[root@linuxhelp Desktop]# pip install docopt pygments
You are using pip version 7.1.0, however version 8.1.1 is available.
You should consider upgrading via the ' pip install --upgrade pip' command.
Collecting docopt
Downloading docopt-0.6.2.tar.gz
Collecting pygments
Downloading Pygments-2.1.3-py2.py3-none-any.whl (755kB)
100% |????????????????????????????????| 757kB 209kB/s
Installing collected packages: docopt, pygments
Running setup.py install for docopt
Successfully installed docopt-0.6.2 pygments-2.1.3
Run the following command to clone the Git repository.
# git clone https://github.com/chrisallenlane/cheat.git
[root@linuxhelp Desktop]# git clone https://github.com/chrisallenlane/cheat.git
Initialized empty Git repository in /root/Desktop/cheat/.git/
remote: Counting objects: 2587, done.
remote: Total 2587 (delta 0), reused 0 (delta 0), pack-reused 2587
Receiving objects: 100% (2587/2587), 450.85 KiB | 19 KiB/s, done.
Resolving deltas: 100% (1420/1420), done.
To Execute setup.py script
Go to cheat directory and execute the ' setup.py' script to install python.
[root@linuxhelp Desktop]# cd cheat
[root@linuxhelp cheat]# python setup.py install
/usr/lib64/python2.6/distutils/dist.py:266: UserWarning: Unknown distribution option: ' install_requires'
warnings.warn(msg)
running install
running build
running build_py
creating build
creating build/lib
creating build/lib/cheat
copying cheat/__init__.py -> build/lib/cheat
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byte-compiling /usr/lib/python2.6/site-packages/cheat/test/__init__.py to __init__.pyc
running install_scripts
copying build/scripts-2.6/cheat -> /usr/bin
changing mode of /usr/bin/cheat to 755
running install_egg_info
Writing /usr/lib/python2.6/site-packages/cheat-2.1.24-py2.6.egg-info
Now the installation of Cheat sheet is successfully completed.
To check a cheat version
After installing Cheat sheet, verify the cheat version by running the following command.
[root@linuxhelp cheat]# cheat -v
cheat 2.1.24
Configuration for Cheat
Add the following lines into the file ' ~/.bashrc' to set the EDITOR environment variable.
export EDITOR=/usr/bin/nano
Save the file and logout.
To enable autocompletion
To enable autocompletion, copy the ' cheat.bash' script into ' /etc/bash_completion.d' path.
[root@linuxhelp Desktop]# cp cheat/cheat/autocompletion/cheat.bash /etc/bash_completion.d/
Add ' CHEATCOLORS' environment variable in your ' .bashrc' file, to activate syntax highlighting feature.
[root@linuxhelp Desktop]# export CHEATCOLORS=true
To make the application rich, add the cheat sheets to ~/.cheat/.
[root@linuxhelp Desktop]# cheat -e xyz
The above command will open a ' xyz' cheat-sheet. If it is not available it creates a xyz cheat-sheet which will be opened in the default EDITOR.
Uses of cheat
Run the following command to list the usage of zip command.
[root@linuxhelp Desktop]# cheat zip
# Create zip file
zip archive.zip file1 directory/
# To list, test and extract zip archives, see unzip
cheat unzip
The following command will show the usage of ' df' command.
[root@linuxhelp Desktop]# cheat df
# Printout disk free space in a human readable format
df -h
Run the following command to show the usage of ' netstat' command.
[root@linuxhelp Desktop]# cheat netstat
# WARNING ! netstat is deprecated. Look below.
# To view which users/processes are listening to which ports:
sudo netstat -lnptu
# To view routing table (use -n flag to disable DNS lookups):
netstat -r
# Which process is listening to port
netstat -pln | grep | awk ' {print $NF}'
Example output: 1507/python
# Fast display of ipv4 tcp listening programs
sudo netstat -vtlnp --listening -4
# WARNING ! netstat is deprecated.
# Replace it by:
ss
# For netstat-r
ip route
# For netstat -i
ip -s link
# For netstat-g
ip maddr
Run the following command to know the usage of ' systemctl' command.
[root@linuxhelp Desktop]# cheat systemctl
# List all loaded/active units
systemctl list-units
# Check the status of a service
systemctl status foo.service
# Start a service
systemctl start foo.service
# Restart a service
systemctl restart foo.service
# Stop a service
systemctl stop foo.service
# Reload a service' s configuration
systemctl reload foo.service
# Enable a service to startup on boot
systemctl enable foo.service
# Disable a service to startup on boot
systemctl disable foo.service
# List the dependencies of a service
# when no service name is specified, lists the dependencies of default.target
systemctl list-dependencies foo.service
# List currently loaded targets
systemctl list-units --type=target
# Change current target
systemctl isolate foo.target
# Change default target
systemctl enable foo.target
To get a list of available commands
Run the following command to view the list of commands available.
[root@linuxhelp Desktop]# cheat -l
7z /usr/lib/python2.6/site-packages/cheat/cheatsheets/7z
ab /usr/lib/python2.6/site-packages/cheat/cheatsheets/ab
apk /usr/lib/python2.6/site-packages/cheat/cheatsheets/apk
apparmor /usr/lib/python2.6/site-packages/cheat/cheatsheets/apparmor
apt /usr/lib/python2.6/site-packages/cheat/cheatsheets/apt
apt-cache /usr/lib/python2.6/site-packages/cheat/cheatsheets/apt-cache
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virtualenv /usr/lib/python2.6/site-packages/cheat/cheatsheets/virtualenv
weechat /usr/lib/python2.6/site-packages/cheat/cheatsheets/weechat
wget /usr/lib/python2.6/site-packages/cheat/cheatsheets/wget
xargs /usr/lib/python2.6/site-packages/cheat/cheatsheets/xargs
xrandr /usr/lib/python2.6/site-packages/cheat/cheatsheets/xrandr
yaourt /usr/lib/python2.6/site-packages/cheat/cheatsheets/yaourt
youtube-dl /usr/lib/python2.6/site-packages/cheat/cheatsheets/youtube-dl
yum /usr/lib/python2.6/site-packages/cheat/cheatsheets/yum
zip /usr/lib/python2.6/site-packages/cheat/cheatsheets/zip
zoneadm /usr/lib/python2.6/site-packages/cheat/cheatsheets/zoneadm
To search with specific keyword
When you search a command with the specific keyword, it lists all the possible options available with that command.
[root@linuxhelp Desktop]# cheat -s ssh grep: # Add [] to the first letter. Ex: sshd -> [s]shd journalctl: # Filter by Command, e.g., sshd journalctl _COMM=sshd nc: # To connect to port 42 of host.example.com via an HTTP proxy at 10.2.3.4, port 8080. This example could also be used by ssh(1) see the ProxyCommand directive in ssh_config(5) for more information. ps: # Add [] to the first letter. Ex: sshd -> [s]shd ss: # show all ssh related connection ss -t state established ' ( dport = :ssh or sport = :ssh )' ssh: # To ssh via pem file (which normally needs 0600 permissions): ssh -i /path/to/file.pem [email protected] ssh -p 2222 [email protected] ssh -A [email protected] ssh -t [email protected] ' the-remote-command' ssh -X [email protected] ssh -f -L 8080:remote.example.com:5000 [email protected] -N ssh -X -t [email protected] ' chromium-browser' ssh -D 9999 [email protected] ssh [email protected] -C -c blowfish -X # Copy files and folders through ssh from remote host to pwd with tar.gz compression ssh [email protected] " cd /var/www/Shared/ tar zcf - asset1 asset2" | tar zxf - ssh-copy-id: ssh-copy-id username@host ssh-copy-id username@host -p 2222 # To copy a key to a remote host on a non-standard port with non-standard ssh key: ssh-copy-id ~/.ssh/otherkey " username@host -p 2222" ssh-keygen: ssh-keygen -t rsa ssh-keygen -t rsa -b 4096 ssh-keygen -p -P old_passphrase -N new_passphrase -f /path/to/keyfile ssh-keygen -p -P old_passphrase -N ' ' -f /path/to/keyfile ssh-keygen -t rsa -b 4096 -C " $USER@$HOSTNAME" -P passphrase tcpdump: # - port ssh vagrant: vagrant ssh
To view the location
In order to know the location of a specific file or folder, run the following command.
[root@linuxhelp Desktop]# cheat -d
/root/.cheat
/usr/lib/python2.6/site-packages/cheat/cheatsheets
To copy the in-built cheat to your directory
Copy the in-built cheat, from ' /cheat/cheatsheets/' directory to ' /home/avi/.cheat/' directory.
[root@linuxhelpDesktop]# cp/usr/local/lib/python2.6/site-packages/cheat/cheatsheets/* /home/avi/.cheat/
Various interactive commands.
Run the following ' man mkdir' command to view the various options available.
Run the following ' help' option to list the available options.
[root@linuxhelp Desktop]# mkdir --help Usage: mkdir [OPTION]... DIRECTORY... Create the DIRECTORY(ies), if they do not already exist. Mandatory arguments to long options are mandatory for short options too. -m, --mode=MODE set file mode (as in chmod), not a=rwx - umask -p, --parents no error if existing, make parent directories as needed -v, --verbose print a message for each created directory -Z, --context=CTX set the SELinux security context of each created directory to CTX --help display this help and exit --version output version information and exit Report mkdir bugs to [email protected] GNU coreutils home page: < http://www.gnu.org/software/coreutils/> General help using GNU software: < http://www.gnu.org/gethelp/> For complete documentation, run: info coreutils ' mkdir invocation'
' whereis' command is used to know the location of the Binaries installed.
[root@linuxhelp Desktop]# whereis httpd
httpd: /usr/sbin/httpd /usr/sbin/httpd.event /usr/sbin/httpd.worker /etc/httpd /usr/lib64/httpd /usr/share/man/man8/httpd.8.gz
' whatis' command is used to display the short and one line options of a particular command.
[root@linuxhelp Desktop]# whatis cat
cat (1) - concatenate files and print on the standard output
cat (1p) - concatenate and print files
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