in same cases you will need to install deprecated PHP version and this is no possible with these commands

brew tap shivammathur/php

brew install shivammathur/php/[email protected]

adding alias to use it

#echo 'alias php7.1="/opt/homebrew/opt/[email protected]/bin/php"' >> ~/.zshrc
#source ~/.zshrc 

The below commands will help you create the iso file 

this command will download the newest version.

- softwareupdate --fetch-full-installer

1- to install MacOS Monterey use the below command 

- softwareupdate --fetch-full-installer --full-installer-version 12.0.1

2- we must create a temporary disk image:

hdiutil create -o /tmp/Monterey -size 12500m -volname Monterey -layout SPUD -fs HFS+J

3- Next, mount the disk image:

How do I find all files containing specific text on Linux?

grep -rnw '/path/to/somewhere/' -e 'pattern'

• -r or -R is recursive,
• -n is line number, and
• -w stands for match the whole word.
• -l (lower-case L) can be added to just give the file name of matching files.
• -e is the pattern used during the search

Along with these, --exclude, --include, 

SENDMAIL on MAC OSX Yosemite

http://www.garron.me/en/mac/postfix-relay-gmail-mac-os-x-local-smtp.html

1) Create a file to store our credentials:

sudo vim /etc/postfix/sasl_passwd

2) Add something like this:

smtp.gmail.com:587 username@gmail.com:password

3) Now run:

download the homebrew core first 

git clone https://github.com/Homebrew/homebrew-core.git
 

check current installed version 

brew list --versions icu4c

1) cd to Homebrew's formula directory

cd $(brew --prefix)/Homebrew/Library/Taps/homebrew/homebrew-core/Formula

2) Find desired commit (version 63 for icu4c) to checkout

git log --follow icu4c.rb