Terminal

How to count the number of files in a directory.  At some point you'll have a directory or directories that you need to know the number of files in them.  On Linux, the list command (ls) is piped with the wc -l command.

ls | wc -l

This command works great if all the files are located in one directory.  What about if you have multiple directories.  Then you will need to use the find command piped with the wc command

I've recently upgraded the server Ubuntu 20.04 updating the PHP version from 7.4 to 8.1.  However, when I've attempted to export the MySQL database using the command

drush sql-dump --extra-dump=--no-tablespaces --result-file=../sql/db-2023-02-25.sql

I seeing the following response

I had generated a backup of key directories on the server - see Create a Ubuntu backup shell script.  With a backup in hand, now it was time to test how to unpack a backup and overwrite the directories.

First I unpacked the backup to a temporary directory tmp-cc.

An approach to generating a backup server is using a shell script.  A script can define directories to backup, and pass those directories as arguments to the tar utility, which creates an archive file. The archive file can then be moved or copied to another location.

Creating a bash script

Bash scripts are files containing code that tell your computer to do something.  In this instance, I want to rename a batch files in a directory.  Such as changing:
 

37351001 - BlueSpotted.jpg
37351008 -SpangledEmporer _ 0133A.jpg
37353003 -Black-Bream_3481 .jpg
37353004   -35 - Yellowfin.jpg

Instead having these files appear as:

How do you generate a .pem file from an existing .ppk key?

Is putty on your mac?

Check by running the command

puttygen -V

Which will generate a response similar to 

puttygen: Release 0.76
Build platform: 64-bit Unix
Compiler: clang 12.0.5 (clang-1205.0.22.9)
Source commit: 1fd7baa7344bb....

Don't have Putty, well easily fixed with homebrew.

Currently I'm working through an app that has been abandoned by the developers.  The client was getting no response from the dev company, when they asked if I could have a look.  The app hadn't been updated for 18 months.  So of course, a product that hasn't been updated in that timeframe is going to have a suite of npm update issues / conflicts.

In this woalk through I am going to use GitHub.  However, the steps are similar to a Bitbucket profile. 

Logged in to your GitHub account, click your profile icon, located (at the time of this writing) on the top right corner. 

Select Settings

Click SSH and GPG Keys

Click Add New SHH Key

A new page will open  requiring

First off, this isn't the only method to achieve the outcome of emptying a file.

Using a symbol : is a shell built-in command that is essence equivalent to the true command and it can be used as a no-op (no operation).  It can be used as follows:

# : > filename.txt

OR 

# true > filename.txt

My initial file was as follows:

21548342 16 Mar 20:27 code.log

Post using the command 

Changes in your .env file

Connecting your app to the new environment you need to make some tweaks in your .env file.

Change your DB_HOST to database. If you use MySQL or MariaDB Lando will create a database named laravel for you with a user laravel and the password laravel. The database section in your .env should look like this: