I don’t know about you, but there have been many times when I wanted to download something only temporarily with the intent to delete it later, like saving an image to upload elsewhere or saving email attachments that I didn’t need to keep to open in an external program. There have also been times when I wanted to test something out and had to temporarily create files with the intent to delete them later, whether it’s creating a test program, extracting a compressed archive, or even creating a named pipe (FIFO). I used to use my disk for that, using a
~/tmp directory, but it would slowly fill up when I neglected to delete these temporary files, thinking that they “might be useful later”; even to this day, I still have about 12GB of supposedly “temporary” files.
The largest files and folders in my tmp folder. Sorry, but I’m not going to show you my files!
How do you prevent these temporary files from filling up your disk? The obvious answer is to just delete them, and good for you if that works for you, but it evidently doesn’t work for me. You could stop downloading things or generating temporary files, but that’s unreasonable. One solution that I came up with when I used to run on Windows was to create a fixed-size container and put my temporary files there. I now had a maximum size for my temporary files so they wouldn’t overrun my disk. It worked for a while, but I made the mistake of making the container too small (only 256 MB), so in time, I was putting my larger temporary files in a
tmp directory outside my container. I was also still not really deleting my temporary files, so in time, the container filled up.
So space-boxing the files is a good thing, but how do you make sure that your temporary files stay temporary and actually get deleted?
Let’s do this in Linux! →
You read about how to create an SSH tunnel and saw that you can do the same in reverse, forwarding a port from the server to your local machine. You tried it out on a server you have access to and discovered that the port you chose isn’t opening on the outside, even though the port is allowed through the firewall. What gives?
SSH Remote Port Forwarding flow diagram
All four authors here on *nix Windows are either using Arch Linux or have expressed an interest in trying it out. As a regular Arch user myself, I think Arch Linux is a great distro and I highly recommend it for anyone who wants to try it out. However, just like with any other distro, Arch might be less suitable than others for certain use cases.
Beginners on Linux will probably encounter a file system check or mount fail at least once throughout their experience. I know I did. Multiple times. But it’s hard to get around hard shut downs when your computer just freezes! Now some people might just press
i to ignore every time. Others blindly follow guides, unaware of the effects on their computer.
I for one want to know what the commands I type actually do. So without much further ado, with reference to Simon Richter’s reply on an Ask Ubuntu thread, here’s how you can resolve the issue permanently (complete with explanations of each command):
Step 1: Boot up Computer
Press that power button. 😉
Step 2: Enter Manual Recovery Mode
In the GNU GRUB boot loader, press
m to enter manual recovery mode.
Step 3: Remount the System
Remount your system to read-only mode. This will prevent the kernel from writing any permanent changes that could harm your system.
mount is the command.
-o allows you to specify mount options.
ro is the read-only option.
remount is the option to remount an already mounted system.
/ is the mount point for the entire system.
mount -o ro,remount /
Step 4: Repair the System
Run the file system consistency check and interactive repair. You do not need to understand all the underlying semantics of
fsck but understand that
fsck possesses a set of standards for file systems and ensures all the files on your system follow that standard.
fsck is the repair command.
-f is the flag to also check clean files.
Step 5: Write the Changes
Write the changes to your system by using a sync.
Step 6: Reboot Computer.
Reboot the system and all changes should be implemented.
Next time you turn on your computer, everything should be running smoothly!
Happy New Year everyone!
A lot happened in 2015 for me, especially in the computer side of things.
My Hewlett Packard (HP Pavilion m6 w/ AMD Quad Core A8 4500M APU @ 2.0GHz and AMD Radeon Dedicated Graphics (1GB) w/ 8GB RAM) finally gave up on me. To summarize, I dropped my laptop in high school and damaged the left hinge. By construction, the fan is placed underneath. As much as this truly sounds like a problem, during that time I didn’t think too much about it.
Any Linux user should be familiar with package management systems. After all, they are a key component of every Linux distro.
Package management systems are an effective way to organize packages for installation, upgrade and deletion.
Package management systems have three sub-components: repositories, packages and package managers. A repository is a database of packages that users can search, download and install. A package contains the files for a particular program along with metadata that includes the package’s name, size and dependencies. When a user wants to install a package, the package manager will automatically search the repositories and install any missing dependencies.
As a user of Linux Mint, the package manager I’m familiar with is APT/dpkg through Synaptic. While I have no experience using existing elements to integrate into my own programming, I can comment on the advantages and disadvantages that a package management system for a Windows-adapted user.
1) Easy installation, upgrade and deletion.
One of the most annoying parts about installing, upgrading or deleting anything on Windows is browsing through all the different options available and figuring out which programs go hand-in-hand with one another.
It’s that time of year again! The time when we go around when we go around doing last-minute shopping, spend time with friends and family, and remember Christ’s birth.
Programs tend to be more or less the same all year round, but a couple of them change depending on the time of year, especially for Christmas.
From December 18 to January 1, VLC media player‘s striped orange cone sports a Santa hat.
VLC media Christmas icon
Hi. It’s been a while. A lot has happened in the past few months of my absence. I hopped back to Windows, almost killed my computer, have developed an odd fondness for OS-tans (blame tPenguinLTG. Also, #Ai4Lyfe) and I’m currently debating switching distros. So, let’s talk about what happened on my absence. Continue reading
If you’ve ever tried to configure your keyboard shortcuts, you may have come across something called the Super key. If you look on your keyboard, there’s probably no key labelled “Super“. So, what is it?
Find out →
This summer I’m learning to develop applications.
My choice of tools are Android Studio and Oracle JDK.
I found a tutorial that is quite good by retired IT professional, Ridzwan Abdullah. However, since some of the commands have been updated, the site is a bit outdated.
Here’s how I did it →