menteith's questions

My question is almost the same as those, however, its solution doesn't work my for my case. I'd like to remove duplicated extension (in my case .zip.zip) and have only one (i.e. .zip). I tried:

rename 's/.zip/.zip$/.zip/' *.zip.zip

and

find . -depth -name "*.zip.zip" -exec rename 's/\.zip\.zip$/.zip/' {} +

But in both case no file was renamed.

I wrote a simple bash script to convert video files. When run, it first makes output directory and then iterates over all .mp4 files, converts them and puts the result to output directory.

mkdir output && for f in *.mp4; do echo $f; \
ffmpeg -loglevel warning -i $f -vf scale=1280:-2,fps=25 output/$f; done

I'd like to add to the script one feature: looping in all the sub-directories (but no the current directory itself), creating 'output` directory and executing conversion.

I managed to find all files meeting given criterion in all sub-directories by using this code:

for d in */; do
  for f in "$d"/*.mp4; do
    echo "$d"
    file="${f##*/}"
    echo "$file"
  done
done

The script prints the following, which is correct.

1/
01.mp4
2/
02.mp4

However, that's all I was able to do.

Say there is a directory foo where there are files:

$ ls
001.mp4
002.mp4

While being in another directory bar I'd like to have the same files as in bar but empty. What have I tried so far:

When in bar I execute:

$ find ../foo -type f |xargs -0

I get:

../foo/001.mp4
../foo/002.mp4

This gives me a list of files but with relative path while I need only filenames (with extensions).

When I put the following line in ~/.xbindkeysrc GNOME correctly launches application vlc.

"vlc"
   XF86Calculator

The problem is that I'd like to run a shell script. When I put the following in ~/.xbindkeysrc GNOME doesn't launch my script but calculator.

"/home/menteith/bin/audio.sh"
   XF86Calculator

Why is that? The script is executable and works as expected when is run from command line.

UPDATE Thanks to @PRATAP I know know that when I use a compiled program in ~/.xbindkeysrc (i.e. not a bash script) and press XF86Calculator button for the first time it launches my program, but when I press XF86Calculator button for the second time I launches calculator instead.

UPDATE 2

Thanks to , @Raffa I tried yet another solution. I wrote a simple C program:

#include <stdio.h>
#include <stdlib.h>

int main() {
  puts("Starting now:");
  system("killall -s1 xbindkeys; /home/menteith/bin/audio");
  return 0;
}

It kills xbindkeys and then runs wrapper, which in turn run the script. However, it still fails to work. After second time and next times calculator is being launched.

UPDATE 3 My script switched between audio from monitor (HDMI) and audio from PC.

#!/usr/bin/env bash

output=$(pactl list cards |grep 'Active Profile:' | cut -d ':' -f 3)

if [ $output == "analog-stereo" ]; then
    out="hdmi-stereo"
else
    out="analog-stereo"
fi

echo test
# Set the choosen card profile as sink
pactl set-card-profile "alsa_card.pci-0000_00_1f.3" "output:${out}"


# Set the default sink to the new one
pacmd set-default-sink "alsa_card.pci-0000_00_1f.3.${out}" &> /dev/null

# Redirect the existing inputs to the new sink
for i in $(pacmd list-sink-inputs | grep index | awk '{print $2}'); do
    pacmd move-sink-input "$i" "alsa_card.pci-0000_00_1f.3.${out}" &> /dev/null
done

This question is not a duplicate. I followed the thread showing how to format usb but it didn't help (see below for details). Please also read the comments section

I tried to follow How to format a USB stick thread to format my USB drive. However, sudo mkfs.vfat /dev/sdb1 still produces the following error.

mkfs.fat 4.1 (2017-01-24)
mkfs.vfat: unable to discover size of /dev/sdb1

The size of USB pendrive seems to be incorrect:

$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
--truncated--
sdb      8:16   1   7.2G  0 disk 
└─sdb1   8:17   1   239M  0 part 

As you can see, the USB has size of 7,2G but there is one partition of size 239M.

I also tried wipefs -a /dev/sdb to erase all the partitions in USB thumb. Still, no luck.

Neither sudo dd if=/dev/zero of=/dev/sdb bs=512 count=1 or sudo dd if=/dev/zero of=/dev/sdb bs=512 has worked as I'm still getting mkfs.vfat: unable to discover size of /dev/sdb1.

I have a directory with files of many extensions in it. I would like to recursively delete *.srt files (and *.srt files only) which don't end with -en.srt (where srt is an extension). I've come up with the following solution and it seems to work fine, however, I'd like to know whether it is 100% correct.

find . -name "*.srt" ! -name "*-en.srt" -type f -exec rm -rf {} \;

I tried to install Java 9, but this version was removed from Oracle servers and cannot be downloaded by apt. Now whenever I run apt to upgrade my system, apt is complaining about not being able to download Java 9. How do I fix this behaviour? I don't want to install Java 9 and don't want to see that annoying message of apt.

When I run 'apt autoremove' I got (truncated output):

....

Processing triggers for man-db (2.7.5-1) ...
Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ...
Processing triggers for desktop-file-utils (0.22+linuxmint1) ...
Processing triggers for mime-support (3.59ubuntu1) ...
Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ...
Setting up oracle-java9-installer (9.0.4-1) ...
No /var/cache/oracle-jdk9-installer/wgetrc file found.
Creating /var/cache/oracle-jdk9-installer/wgetrc and
using default oracle-java9-installer wgetrc settings for it.
Downloading Oracle Java 9...

$ apt-cache policy oracle-java9-installer

oracle-java9-installer:
  Installed: 9.0.4-1
  Candidate: 9.0.4-1
  Version table:
 *** 9.0.4-1 500
        500 http://ppa.launchpad.net/linuxuprising/java/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status

In bash pressing CTRL + U clears the characters on the line before the current cursor position while in zsh this will clear the entire line. How do I clear the characters on the line before the current cursor position by pressing CTRL + U in zsh?

I want to install a newer Ubuntu distro beside my existing one. At later time I want to delete my old distro and move my new Ubuntu to the partition where the old one was. By doing so, boot configuration of my new Ubuntu would be incorrect. How do I fix this?

I haveCinnamon on my Ubuntu with custom theme. Now I would like to customise context menu shown upon right click on desktop. In my case there is very large icon for Open as root action, which I'd like to fix.

I often use Guake (drop-down terminal for GNOME). The problem is that it apparently stores its own command history, and it is different from that of the standard GNOME terminal. My shell is zsh and it is configured to store its command history in ~/.zsh_history. How do I make Guake use the command history stored in ~/.zsh_history?

In console running a jar file is normally done by java -jar application.jar Is there a way to run jar files by executing ./application.jar? I'd like this behaviour for any jar file. I tried chmod +x application.jar but it won't work as it gives the following error: invalid file (bad magic number): Exec format error. Further, it would be specific to one application.

Say someprogram needs only *.abc files as command line arguments. In terminal, when I do

$ someprogram <tab>

I'd like to only the *.abc files to be listed for tab auto-complete. How do I do that? The shell I use is zsh.

In bash this behaviour is achieved by complete -f -X '!*.abc' someprogram