refactor: using ```sh instead of shell

wiki/linux/date.md

@@ -7,7 +7,7 @@ To change the hardware clock look at the [according article](./hwclock.md)
 
 To change the time and date run the following command:
 
-```shell
+```sh
 date
 ```
 
@@ -16,14 +16,14 @@ date
 To change the date run the following command with an adjusted value for the
 date:
 
-```shell
+```sh
 date +%Y%m%d -s "20210809"
 ```
 
 To change the time run the following command with an adjusted value for the
 date:
 
-```shell
+```sh
 date +%T -s "18:49:42"
 ```
 
@@ -34,6 +34,6 @@ After that you can check if the time is correct by displaying it.
 To set your timezone run the following command with the accordingly selected
 file for your location:
 
-```shell
+```sh
 cp /usr/share/zoneinfo/Europe/Berlin /etc/localtime
 ```

wiki/linux/ffmpeg.md

@@ -8,7 +8,7 @@ many audio and video tools and libraries.
 First you need to create a text file `files.txt` that includes a line for every
 video you want to concatenate in the form of:
 
-```shell
+```sh
 file '<path to the video>'
 ```
 
@@ -16,7 +16,7 @@ You have to give the absolute path towards the files.
 Make sure the videos are in correct order.
 To concatenate these video files you can run:
 
-```shell
+```sh
 ffmpeg -f concat -safe 0 -i files.txt -map 0 -c copy output.mp4
 ```
 

wiki/linux/hwclock.md

@@ -6,7 +6,7 @@
 
 To display the hardware clock run the following command:
 
-```shell
+```sh
 hwclock
 ```
 
@@ -14,6 +14,6 @@ hwclock
 
 To sync the hardware clock run the following command:
 
-```shell
+```sh
 hwclock -w
 ```

wiki/linux/ip.md

@@ -8,7 +8,7 @@ It is a replacement for the program `ifconfig`.
 
 You can list network interfaces by running:
 
-```shell
+```sh
 ip link list
 ```
 
@@ -16,12 +16,12 @@ ip link list
 
 Assuming the interface is named `wlan0` run the following:
 
-```shell
+```sh
 ip link set wlan0 up
 ```
 
 Disabling works accordingly by running:
 
-```shell
+```sh
 ip link set wlan0 down
 ```

wiki/linux/lvm.md

@@ -19,7 +19,7 @@ First format the disk so that it has one partition (we will assume its called
 `/dev/sdc1`).
 To add the partition to a group run:
 
-```shell
+```sh
 pvcreate /dev/sdc1
 vgextend <name of your volume group> /dev/sdc1
 ```
@@ -44,18 +44,18 @@ If you don't have enough space you have to resize the physical volume as
 described in this article.
 Then run:
 
-```shell
+```sh
 lvextend -L +<size (e.g. 40G)> /dev/<volume groupt>/<logical volume>
 ```
 
 If you want to allocate all the free space existing in a volume group run:
 
-```shell
+```sh
 lvextend -l +100%FREE /dev/<volume group>/<logical volume>
 ```
 
 Now you need to extend the filesystem with:
 
-```shell
+```sh
 resize2fs /dev/<volume group>/<logical volume>
 ```

wiki/linux/proxmox.md

@@ -20,13 +20,13 @@ For further information see [the disk management article](./disk-management.md)
 SSH into Proxmox.
 Enlarge a disk by using:
 
-```shell
+```sh
 qm resize <vmid> <vm-disk-to-enlarge> <size>
 ```
 
 For example if you want to the disk 100 by 100G (100GibiByte):
 
-```shell
+```sh
 qm resize 100 ide0 +100G
 ```
 
@@ -47,19 +47,19 @@ Finally extend the filesystem `resize2fs /dev/mapper/pve-root`.
 
 On the host system find the usb you're looking to pass through with
 
-```shell
+```sh
 lsusb
 ```
 
 Then assign it to the vm using
 
-```shell
+```sh
 qm set <vm-id> -usb<id-to-set> host=<id-of-the-usb>
 ```
 
 for example
 
-```shell
+```sh
 qm set 101 -usb0 host=aaaa:8816
 ```
 

wiki/linux/ssh.md

@@ -20,7 +20,7 @@ To enable easy login without password you can add the contents of the file
 on the machine you want to log into.
 You can use the modified command below for ease of use:
 
-```shell
+```sh
 cat ~/.ssh/id_rsa.pub | ssh username@server 'cat >> ~/.ssh/authorized_keys'
 ```
 
@@ -30,6 +30,6 @@ To mount a directory (in this case called `directory`) from a remote server
 (in this case called `server` also can be substituted by something like
 `user@server-ip`) on a local mount (in this case `mountpoint`) run:
 
-```shell
+```sh
 sshfs server:/directory mountpoint
 ```