How to get clean data is important, however Excel or any GUI application might not be able to help us clean the raw data. Moreover, if the data set is large, the application might crush. If you are also using unix system like I did, there are many useful utilities that could help with data… Continue reading Data Wrangling with sed
Tag: cli
List all csv file in current directory
I need to list all csv file in a directory and I have to goole how to do it every time I need it. So I’ll write a post to remind myself. Since I only want to list file in current directory not any sub directory. I have to use the maxdepth flag, as find… Continue reading List all csv file in current directory
Factory rest HPE 5510 switch
1. Reload the switch 2. Hit “Ctrl+B” as the switch boot up to enter extended boot menu 3. From the menu select 5(Restore to factory default configuration) 4. If “Password recovery capability is enabled”. you could not perform a factory reset. You will have to disable the function first. 5. Reload the switch and enter… Continue reading Factory rest HPE 5510 switch
Check RDS license grace period
Method 1 Method 2 Method 3
Juniper srx320 clear system alarms
I need to set up some SRX320 for customer and the device’s alert light keeps showing red. Here is how to resolve it. If you have same alarm message. To show what alarm the system is having is simple. In my case, the output is like this. Is’t also simple to resolve, just run the… Continue reading Juniper srx320 clear system alarms
Enable console(UART) on raspberry pi 4b running ubuntu22.04
I recently had some issue on how to enable UART(console) port on a raspberry pi device. This post will help you configure raspberry pi to be accessible by UART(console) on the board. 01. Edit the config.txt under /boot/firmware. Add “enable_uart=1” in the file or edit if the line already exist. 02. Edit cmdline.txt under /boot/firmware.… Continue reading Enable console(UART) on raspberry pi 4b running ubuntu22.04
Let your python script take command line argument with Argparse
Sometime in your life you might want your script to be able to accept command line argument as input. This post will teach you the most basic usage of Argparse library. I only touch surface of this library if you would like to know more detail usage read docs.python.org for further instructions. Installation is quite… Continue reading Let your python script take command line argument with Argparse
Factory Reset Palo Alto Firewall with admin password
This post will show you how to perform factory reset on a Palo Alto firewall. And this post assume you have admin user password of the firewall. Step01Enter maintenance mode using the command below. Step02Select “Factory Reset” option. Step03Confirm to perform a factory reset by selecting the “Factory Reset” option. Step04Wait the system being reset.… Continue reading Factory Reset Palo Alto Firewall with admin password