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Andrew Fletcher
•
When managing a server or developing applications, particularly on an Ubuntu system running Nginx, it's often necessary to verify the existence of files. This is crucial for tasks like deploying new versions, checking configuration files, or ensuring that required assets are in place. In this article, we'll explore how to use command-line queries to check if a file exists, highlighting various options and methods you can use.
Basic File Check with test Command
The test command is a simple...
Andrew Fletcher
•
To review the content of files being generated in the /tmp directory on an...
Andrew Fletcher
•
A growing list of commands I've used and what they do in no specific order
sudo...
Andrew Fletcher
•
When Solr is displaying results on the site, first step is to log in the server...
Andrew Fletcher
•
To resolve the CVE-2022-48624 vulnerability on Ubuntu using Nginx, it's crucial...
Andrew Fletcher
•
In many terminal text editors, you use find command as reference in Terminal commands - find. How about find and replace. This action depends on the specific text editor you're using in the terminal. Here are a few common terminal text editors and how you can find and replace strings within them:
Vim
To find: Press / followed by the search term and then Enter.
/To replace: You can use the substitute command. For example, to replace "old" with "new" globally in the file, you can...
Andrew Fletcher
•
In our projects, team members frequently generate new Git branches linked to the...
Andrew Fletcher
•
In an environment that is running
Ubuntu 20.02
Nginx
Solr
The default...
Andrew Fletcher
•
You can perform the following steps:
Check Apache Modules
Apache Struts 2 is...
Andrew Fletcher
•
To use OpenAI to summarise text from a PDF using Python 3.11.6, you'll first...
Andrew Fletcher
•
In Vim, following is an outline of the vi(m) functions you can utilise whilst in command mode - yes they are case sensitive
action
outcome
a
change to insert mode (after cursor)
A
change to insert mode (at end of line)
dd
delete one line
G
go to end of the file
1G
go to top of the file
i
change to insert mode (before cursor)
J
merge next line with this one
p
paste deleted or yanked text after cursor
P
paste deleted or yanked text before cursor
r
replace one...
Andrew Fletcher
•
Permission error
Traceback (most recent call last):
File...
Andrew Fletcher
•
To set an environment variable on Ubuntu, can be achieved via a few options....
Andrew Fletcher
•
Whilst installing Python 3.11.6 and running the command 'sudo make altinstall',...
Andrew Fletcher
•
Ubuntu 20.04 comes with Python 3.8 installed. If you run the update...