Tag Archives: Linux

BASH Comment convertir du flac en mp3

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Voila un petit script avec rien de révolutionnaire qui permet de convertir tout un répertoire de fichier au format flac en mp3

Les dépendances

sudo apt-get install id3v2 flac lame

Le script flac2mp3.sh

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#!/bin/bash                                                                                                                                                                         
output_dir="/data/sda1/music/CONVERTING_OUTPUT/$1"
lame_opts="--vbr-new -V 2 -b 128 -B 256"
flac_args="--silent -cd"
 
if [ ! -d "$output_dir" ]; then
    mkdir "$output_dir"
    echo "create dir: $output_dir"
fi
 
for file in *.flac
do
    ARTIST=`metaflac "$file" --show-tag=ARTIST | sed s/.*=//g`
    TITLE=`metaflac "$file" --show-tag=TITLE | sed s/.*=//g`
    ALBUM=`metaflac "$file" --show-tag=ALBUM | sed s/.*=//g`
    GENRE=`metaflac "$file" --show-tag=GENRE | sed s/.*=//g`
    TRACKNUMBER=`metaflac "$file" --show-tag=TRACKNUMBER | sed s/.*=//g`
    DATE=`metaflac "$file" --show-tag=DATE | sed s/.*=//g`
    flac $flac_args "$file" |lame $lame_opts - "$output_dir/${file%.flac}.mp3"
    id3v2 -t "$TITLE" -T "$TRACKNUMBER" -a "$ARTIST" -A "$ALBUM" -g "$GENRE" -y "$DATE" "$output_dir/${file%.flac}.mp3"
done

LINUX comment s’authentifier en SSH avec une clé

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On génère 2 clés
Une privée: id_rsa pour le client ^^
Une public: id_rsa.pub pour le serveur

debian:~$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/hio/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in id_rsa.
Your public key has been saved in id_rsa.pub.
The key fingerprint is:
0b:97:e8:18:78:50:f8:3b:c9:41:ba:f3:6d:4b:41:b9 hio@debian
The key's randomart image is:
+--[ RSA 2048]----+
|   ..            |
|  ...  .         |
|  .+  o          |
|  .oo. o .       |
|  .oo+E S        |
|  o.=+ + .       |
|   o.oo .        |
|    ..o          |
|     ...         |
+-----------------+

On se retrouve donc avec 2 fichiers contenant les clés :O

debian:~$ ls -l ~/.ssh/
total 8
-rw------- 1 hio hio 1675 mar  6 12:41 id_rsa
-rw-r--r-- 1 hio hio  392 mar  6 12:41 id_rsa.pub

ensuite

debian:~$ ssh-copy-id -i ~/.ssh/id_rsa.pub "-p port username@host.com"

et voilà