Afterinstall for Ubuntu 18.04 LTS

Moved here: https://github.com/joaocgreis/post-install It will keep evolving while I have Ubuntu 18.04 installed.

Copy files in order

find -type f -print0 | sort -z | xargs -0 -L1 cp -v --parents -t /media/target/

Split podcasts and prepend part number

for i in *; do
  TITLEBASE=$(echo "$i" | sed "s/\..*//")
  TITLE=$(echo "$TITLEBASE" | sed "s/_/ /g;s/\(20[0-9]\{2\}\)\([0-1][0-9]\)\([0-3][0-9]\)/\1-\2-\3/")
  DUR=$(ffprobe -v quiet -show_format "$i" | sed -n "/duration/{s/.*=//;s/\..*//;p}")
  PARTSIZE=300
  OVERSHOOT=5
  PARTS=$((($DUR + $PARTSIZE - 1) / $PARTSIZE))
  PARTSIZE=$((($DUR / $PARTS) + 1))
  mplayer -ao pcm:file=tmp_file.wav -af volnorm=1:1,resample=44100:1:2,format=s16le,channels=2 -novideo -really-quiet -noconsolecontrols "$i" &&
  normalize-audio -v -a 1.0 tmp_file.wav &&
  for p in $(seq -w $PARTS); do
    pp=$(echo $p | sed "s/^0*//")
    echo
    echo $TITLE - $DUR - $p of $PARTS
    mplayer -ao pcm:file=tmp1.wav -af resample=44100:1:2,format=s16le,channels=2 -novideo -really-quiet -noconsolecontrols "http://translate.google.com/translate_tts?ie=UTF-8&client=tw-ob&q=part $pp of $PARTS of $TITLE&tl=en" &&
    mplayer -ao pcm:file=tmp2.wav -novideo -really-quiet -noconsolecontrols tmp_file.wav -ss $(($PARTSIZE * ($pp - 1))) -endpos $(($PARTSIZE + $OVERSHOOT)) &&
    sox tmp1.wav tmp2.wav tmp.wav &&
    lame -a -h -V4 tmp.wav "${TITLEBASE}_${p}.mp3" &&
    rm tmp1.wav tmp2.wav tmp.wav
  done
  rm tmp_file.wav
done

Recursive SHA sums and size lists

List of SHA512 sums:

find -type f -exec sha512sum '{}' \; | LC_COLLATE=C sort -k 2

List of file sizes:

find -type f -exec stat -c '%s %n' '{}' \; | LC_COLLATE=C sort -k 2

Separator tab bookmarklet

Create a new bookmark, edit it, and paste this in the target address. javascript:{document.title=prompt("Name","SEP");};void(0);

Custom launcher in Unity

Create a file named application_whatever.desktop with:

[Desktop Entry]
Name=Application Name
Comment=Application Comment
Exec=/path/to/exec/command
Path=/path/
Icon=/path/to/icon
Terminal=false
Type=Application
StartupNotify=true

and put it in $HOME/.local/share/applications/

Afterinstall for Ubuntu 14.04 LTS

First! Make sure you have the fastest possible server configured: System Settings -> Software & Updates -> Download from: Other... -> Select Best Server -> Choose Server
Then open a terminal and... (you might want to copy this in several smaller parts, the copy buffer is not large enough)
Then go to System Settings and make sure everything is to your liking. You can change the screen locking timeouts, under Details set the default application for audio and video to SMPlayer and so on.

---

If you have a laptop and battery concerns (take a look at http://linrunner.de/en/tlp/docs/tlp-linux-advanced-power-management.html):

sudo add-apt-repository ppa:linrunner/tlp &&
sudo apt-get update &&
sudo apt-get install tlp tlp-rdw &&
sudo tlp start

---

If you have an SSD drive, add

,discard

to the options of your EXT4 partition in /etc/fstab. Also in /etc/fstab, add these lines so that the temporary directories are mounted in RAM:

tmpfs /tmp     tmpfs defaults,noatime,mode=1777,size=10% 0 0
tmpfs /var/tmp tmpfs defaults,noatime,mode=1777,size=10% 0 0

You can also finetune swappines:

sudo sh -c "echo 'vm.swappiness=1' >> /etc/sysctl.d/99-sysctl.conf" &&
sudo sh -c "echo 'vm.vfs_cache_pressure=50' >> /etc/sysctl.d/99-sysctl.conf"