3
votes
4answers
235 views

Execute a program at login

I'm running Arch-Linux ARM on a Raspberry Pi. My project goal is to have a barcode scanner attached to the Pi that forwards the scanned messages to a server in a LAN. To harden the system against ...
2
votes
2answers
63 views

Changing username still leaves old traces

I changed my username about a month ago, and although I have forgotten the specificities of how I had done so, I'm pretty sure I followed the instructions on the Arch Wiki. Since then, some programs, ...
1
vote
0answers
260 views

Create adhoc network when disconnected from network

I am using ArchLinux and want to create an AdHoc network automatically when the connection to the home network drops (or the home network can't be connected to on startup). How can I achieve this? I ...
2
votes
3answers
537 views

How to convert all .wav files in subdirectories to .aac using neroAacEnc?

I have a collection of music in .wav format, and would like to convert it to .aac/.mp4 using neroAacEnc. How do I do this? I am using Arch Linux x86_64 and Xterm.
2
votes
1answer
148 views

Mystifying command not found at login

I've just set up Arch Linux (not my first time). Everything installed correctly but when I login (X isn't installed yet) I see: Arch Linux 3.8.4-1-ARCH (tty1) mgoszcz2 login: root Password: Last ...
3
votes
1answer
148 views

Restore default completion

I use compgen when $COMP_WORD equals 1, now I want to restore default completion when otherwise, Right now I have, _rr() { case $COMP_CWORD in 1) COMPREPLY=($(compgen -W "A ...
4
votes
2answers
1k views

Start X after automatic login

I have a working automatic login to a virtual console after boot. Now I want the X server to start automatically, instead of typing startx. This worked before, but after switching to systemd, X would ...
5
votes
2answers
2k views

missing argument to find -exec

I want to remove certain files using find and -exec. But unlikely bash tells me, that I'm "missing" some argument. find . -name *.png -exec rm {} /; what do I miss? same "missing argument" return ...
-1
votes
3answers
256 views

Duplicate bash prompts

I'm having an interesting issue with XFCE Terminal/Gnome Terminal (not reproducible in XTerm), where executing bash or logging in using login or su will open a new Bash instance inside a Bash instance ...
4
votes
1answer
457 views

Home key acting strange in bash (tty and X) on long input strings

When I hit Home if my current input is short enough (say, <36 characters), it works fine. However, when I've typed a longer command and then want to go back to the beginning, it seems like it does ...
7
votes
1answer
4k views

How to fix character encoding in bash (arch linux)

I have some issues with the encoding of german umlauts in bash. It mostly is working fine, but when i am typing a invalid command, the error message generated by bash contains strange escape sequences ...
3
votes
2answers
285 views

How can I “cache” a variable in Bash?

I have a bash script which is run every 10m by cron. The script performs an expensive calculation for some value (say variable x=value). I need to "cache" this value for 2-3 hours. What are possible ...
3
votes
5answers
652 views

How can I test whether connection to the given host/port is established in Bash?

Currently I'm using netstat for this: if netstat -an | grep ESTABLISHED | grep $address:$port > /dev/null; then # command fi Is there a more elegant solution?
2
votes
1answer
183 views

Stop cron script from destroying my mirrorlist with invalid data

I have to following cron script that runs daily. As you should be able to see from the code, it outputs the results from reflector to /etc/pacman.d/mirrorlist. $ cat /etc/cron.daily/update-mirrorlist ...