My New Favorite Phone Game: termux

 A lot of people when bored pull out their phone and play games.  Games just don't do it for me for some reason.  I mean, I played chess for a while, and recently I tried Shoot Bubble and 5 Dice (generic Yahtzee), but for some reason I always forget I even have them available and I end up just scrolling Twitter :-/  My feed is pretty good, if someone gets overly political or negative (usually its a combination of the two) I block them, but stuff still leaks in.  Usually if Twitter is holding my attention for a long time it's because it's making me angry.  I don't like that.  I think I've found a better solution for when I'm bored and pull out my phone: termux.

Termux is a linux command-line environment for Android.  It's a kinda like wsl (or cygwin if you are old like me) or Terminal.app, but for your phone.  It's almost linux but not quite.  Normally I find that very frustrating, especially if I'm trying to get real work done (you may have seen my past blog posts here or here or here or here, for example), but I'm actually enjoying just playing with termux and seeing what it can do.  Apparently Frustration Games is a popular genre now (I'm old enough to remember when they were all Frustration Games), and I'm liking this one!

To be completely honest, I've actually been surprised at how not frustrating it is.  I'd say it's better than trying to get a linux-like environment on Windows or Mac, except for the minor detail that it's on a phone with a tiny screen and no physical keyboard.  I've actually been able to install emacs and python and write a very (very!) basic little SystemVerilog parser, and test it!  And use git to version it!  I'm kind of amazed.

Some things I've learned about termux:

  • The app store version is old and broken, get the apk from github and install that
  • You can use apt to install packages, but the built-in termux pkg command is more convenient (you can type pkg in instead of apt install, which makes a difference using your phone keyboard)
  • It has built-in scripts that do nice things:
    • termux-setup-storage to make it easy to access your files
    • termux-change-repo to easily pick a package repo or group of mirrors
    • termux-backup and termux-restore to backup and restore your environment
    • probably others I wish I knew
  • You can install dropbear for ssh because you are thinking this is a phone and slim simple dropbear would be efficient and cool, but dropbear doesn't support a ~/.ssh/config file
  • When you do pkg remove dropbear it removes dropbear and conveniently installs openssh in its place
  • I use gnu screen (not tmux. Again, I'm old) and I've changed the default ctrl-a to ctrl-j instead, but for some reason ctrl-j j is treated like ctrl-j ctrl-j on termux
  • Files are owned by root and I can't change that
  • I can't make a script executable, it seems.  Hmm, I wonder about a compiled binary?
  • The filesystem is pretty slow, something like git status takes a loooong time
  • Termux hard-codes the DNS server to be 8.8.8.8, it doesn't use whatever the rest of Android is using

I'm sure there's more that I'll come across, but I figured this was enough to fill out a blog post at this point.  If you are looking for a new activity for your phone, give termux a try.

Comments

Buy mlb the show 24 stubs said…
This blog post is really interesting! I like your enthusiasm and exploratory spirit towards Termux. Your comments and observations have given me a deeper understanding of this app. I hope you continue to enjoy using Termux and share more about your experiences with it!
April 25, 2024 at 6:36 PM
Post a Comment

Popular posts from this blog

SystemVerilog Fork Disable "Gotchas"

This is a long post with a lot of SystemVerilog code. The purpose of this entry is to hopefully save you from beating your head against the wall trying to figure out some of the subtleties of SystemVerilog processes (basically, threads). Subtleties like these are commonly referred to in the industry as "Gotchas" which makes them sound so playful and fun, but they really aren't either. I encourage you to run these examples with your simulator (if you have access to one) so that a) you can see the results first hand and better internalize what's going on, and b) you can tell me in the comments if this code works fine for you and I'll know I should go complain to my simulator vendor. OK, I'll start with a warm-up that everyone who writes any Verilog or SystemVerilog at all should be aware of, tasks are static by default. If you do this: module top; task do_stuff ( int wait_time); #wait_time $display ( "waited %0d, then did stuff" , wa...
Read more

'git revert' Is Not Equivalent To 'svn revert'

I just learned that if you have some changes in your working tree that you want to get rid of, you don't type 'git revert' like you might guess. No, that's what cvs, subversion, mercurial, and bazaar (to name a few) use revert to mean, but not git. With git, revert is used to undo actual commits. Thankfully, you can undo your revert with another 'git revert', I just learned. So let me repeat to be clear, if you have changes to your working files that you want to abandon, DO NOT do this: git revert HEAD That will undo your last commit. Do this instead: git reset --hard HEAD I'm glad I have that straightened out now. I'm wondering if /etc was really a good place for me to start out playing with git. UPDATE: Nearly two years later and I'm still getting comments on this. I'm glad I've been able to help people out this way. The discussion in the comments is good, and one thing I'd like to point out is that I now always use...
Read more

SystemVerilog Streaming Operator: Knowing Right from Left

SystemVerilog has this cool feature that is very handy for converting one type of collection of bits into another type of collection of bits.  It's the streaming operator.  Or the streaming concatenation operator.  Or maybe it's the concatenation of streaming expressions (it's also called pack/unpack parenthetically).  Whatever you want to call it, it's nice.  If you have an array of bytes and you want to turn it into an int, or an array of ints that you want to turn into an array of bytes, or if you have a class instance that you want to turn into a stream of bits, then streaming is amazing.  What used to require a mess of nested for-loops can now be done with a concise single line of code. As nice as it is, getting the hang of the streaming operator is tough.  The SystemVerilog 1800-2012 LRM isn't totally clear (at least to me) on the details of how they work.  The statement from the LRM that really got me was this, "The stream_operator <...
Read more