By Manny Fernandez

October 11, 2019

Removing the ZSH warning on macOS Catalina

OK, so Apple just release (couple of days as of this writing) the macOS Catalina.  Catalina now uses the ZSH shell as opposed to BASH.

Warning.png

You may have seen this. If you are like me that loves the “ugly black screen” it starts to aggravate me.  Here is how to remove it.

Step 1 – Get to your home directory

First thing you need to find is your .bash_profile file.  This file is located in the root of your home directory.  To see it, type the following:

cd ~

pwd
/Users/mannyfernandez

ls -all .bash_profile

The cd ~ command is a short cut that takes you to the root of your home directory.

To validate where you are, you can type the pwd which stands for Print Working Directory.  It will show you where you are in the file structure.  In my example it is my home directory /Users/mannyfernandez

Finally, you can ensure the file exists by running the ls -all .bash_profile .  ls stands for list.

Step 2 – Editing your bash profile file

Second, you will need to open up your favorite, or not so favorite, editor. In my case I like to use VI but you can use any one that works for you.

02.png

You will need to edit the file with the sudo prefix, if not the file will be opened in read-only.   In my case, I use vi to edit the file type the following:

sudo vi .bash_profile

You should see something like this (below)

04.png

Once you are in your file, you will need to type the letter i to edit.  Now add the following line.

05.png

export BASH_SILENCE_DEPRECATION_WARNING=1

To save in vi you will need to hit the ESC key and then type :x and Enter

And voila

03.png

Hope this helps.

 

Recent posts

  • If you've spent any time configuring user authentication on... Full Story

  • DNS is one of those technologies that quietly underpins... Full Story

  • BGP issues on FortiGate firewalls usually trace back to... Full Story

  • Every time your laptop talks to your router, a... Full Story

  • If you've spent any time configuring NAT on a... Full Story

  • If you have spent any time configuring firewall policies... Full Story

  • High availability on FortiGate is one of those features... Full Story

  • If you've configured SD-WAN on a FortiGate, you've almost... Full Story

  • FortiLink is the management protocol that turns a FortiSwitch... Full Story

  • FortiSwitches are pretty rock solid from Mean Time Between... Full Story

  • This is a quicky tip.  Have you ever gone... Full Story

  • DNS is one of those quiet pieces of internet... Full Story

  • This article is an updated version of the previous... Full Story

  • You will add ns2 as a secondary (slave) BIND9... Full Story

  • In the process of deploying my lab, I needed... Full Story

  • RFC 8805, used to be known as Self-Correcting IP... Full Story

  • Years back, I wrote an article about certificate pinning. ... Full Story

  • FortiGates have the ability to send alerts to Microsoft... Full Story

  • In this post, I am going to walk through... Full Story

  • Troubleshooting VoIP on a FortiGate can feel like trying... Full Story

  • Prior to FortiOS 7.0, there were three commands to... Full Story

  • In this post, I am going to go over... Full Story

  • What we are going to do:  We are going... Full Story

  • Choosing between FGCP (FortiGate Clustering Protocol) and FGSP (FortiGate... Full Story

  • Creating a VLAN on macOS (The "Pro" Move) A... Full Story

  • This blog post explores the logic behind how macOS... Full Story

  • Pretty Fly for a Wi-Fi Tell My Wi-Fi Love... Full Story

  • Part of my daily gig is creating BoMs (Bill-of-Materials)... Full Story

  • ICMP introduces several security risks, but careful filtering, rate... Full Story

  • The command diag debug application dhcps -1 enables full... Full Story

  • In the world of FortiOS, execute tac report is... Full Story

  • LLDP; What is it The Link Layer Discovery Protocol... Full Story

  • What it actually does When you run diagnose fdsm... Full Story

  • Monkey Bites are bite-sized, high-impact security insights designed for... Full Story

  • I have run macOS in macOS with Parallels but... Full Story

  • Don't be confused with my other FortiNAC posts where... Full Story

  • This is the third session in a multi-part article... Full Story

  • Today I was configuring key-based authentication on a FortiGate... Full Story

  • Netcat, often called the "Swiss Army knife" of networking,... Full Story

  • At its core, IEEE 802.1X is a network layer... Full Story

  • In case you did not see the previous FortiNAC... Full Story

  • This is our 5th session where we are going... Full Story

  • Now that we have Wireshark installed and somewhat configured,... Full Story

  • The Philosophy of Packet Analysis Troubleshooting isn't about looking... Full Story

  • Overview FortiOS 8.0 introduces custom tags as a first-class... Full Story

  • These are two distinct mechanisms on FortiOS, and conflating... Full Story

  • Replacement messages are the pages and text blocks that... Full Story