ansible all -m ping
Here is what the above code is Doing:
1. We’re using the ansible command to run a module.
2. We’re using the all argument to tell ansible to run the module on all hosts in our inventory.
3. We’re using the ping module to test our connection to the hosts.
sudo apt-get install libcompress-raw-lzma-perl Here is what the above code is Doing: 1. It’s creating a new file called “test.txt” 2. It’s writing the string “Hello World” to the file 3. It’s closing the file 4. It’s opening the file again 5. It’s reading the file and printing it to the screen 6. It’s closing…
apt-get update apt-get install nano Here is what the above code is Doing: 1. We’re updating the package list. 2. We’re installing the nano text editor.
# Copy from machine a to b scp -r /path/to/directory user@ipaddress:/path/to/destination # Copy from machine b to a scp -r user@ipaddress:/path/to/destination /path/to/directory Here is what the above code is Doing: 1. The first line is the command to copy files from one machine to another. 2. The -r flag tells the command to copy recursively,…
pip install –upgrade pip setuptools pip install –upgrade httpie Here is what the above code is Doing: 1. Install the latest version of pip and setuptools. 2. Install the latest version of httpie.
curl -O https://archive.apache.org/dist/spark/spark-3.1.1/spark-3.1.1-bin-hadoop3.2.tgz Here is what the above code is Doing: 1. We’re using the curl command to download the Spark tarball from the Apache archive. 2. We’re using the -O flag to tell curl to save the file with the same name as the file on the remote server. 3. We’re using the -L…
You have two options: 1) use HTTPS instead 2) use SSH but first check and accept host via ssh -T git@github.com * make sure the hash is good first Here is what the above code is Doing: 1. It’s checking to see if the current directory is a git repository. 2. If it is, it’s…