diff --git a/wiki/docker-images/awesometechnologies_-_synapse-admin.md b/wiki/docker-images/awesometechnologies_-_synapse-admin.md
index 0768954..01e4dbc 100644
--- a/wiki/docker-images/awesometechnologies_-_synapse-admin.md
+++ b/wiki/docker-images/awesometechnologies_-_synapse-admin.md
@@ -20,7 +20,7 @@ Set the following ports in the `ports:` section.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker pull awesometechnologies/synapse-admin:latest
diff --git a/wiki/docker-images/b4bz_-_homer.md b/wiki/docker-images/b4bz_-_homer.md
index 31edcba..f9184e3 100644
--- a/wiki/docker-images/b4bz_-_homer.md
+++ b/wiki/docker-images/b4bz_-_homer.md
@@ -29,7 +29,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop homer
 docker rm homer
diff --git a/wiki/docker-images/benbusby_-_whoogle-search.md b/wiki/docker-images/benbusby_-_whoogle-search.md
index 50256de..5b8ce17 100644
--- a/wiki/docker-images/benbusby_-_whoogle-search.md
+++ b/wiki/docker-images/benbusby_-_whoogle-search.md
@@ -31,7 +31,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 cd whoogle-search
 docker-compose down
diff --git a/wiki/docker-images/chocobozzz_-_peertube.md b/wiki/docker-images/chocobozzz_-_peertube.md
index f149593..4d804dc 100644
--- a/wiki/docker-images/chocobozzz_-_peertube.md
+++ b/wiki/docker-images/chocobozzz_-_peertube.md
@@ -33,7 +33,7 @@ Set the following volumes with the -v tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker-compose up -d
diff --git a/wiki/docker-images/cloudrac3r_-_bibliogram.md b/wiki/docker-images/cloudrac3r_-_bibliogram.md
index 2327c66..5518e2c 100755
--- a/wiki/docker-images/cloudrac3r_-_bibliogram.md
+++ b/wiki/docker-images/cloudrac3r_-_bibliogram.md
@@ -32,7 +32,7 @@ Set the following ports in the `ports:` section.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 cd /root/docker/bibliogram/bibliogram
 docker-compose down
diff --git a/wiki/docker-images/dperson_-_torproxy.md b/wiki/docker-images/dperson_-_torproxy.md
index ae93377..08acf7f 100644
--- a/wiki/docker-images/dperson_-_torproxy.md
+++ b/wiki/docker-images/dperson_-_torproxy.md
@@ -28,7 +28,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop tor-proxy
 docker rm tor-proxy
diff --git a/wiki/docker-images/gitea_-_gitea.md b/wiki/docker-images/gitea_-_gitea.md
index 93018e9..09c8c6c 100644
--- a/wiki/docker-images/gitea_-_gitea.md
+++ b/wiki/docker-images/gitea_-_gitea.md
@@ -64,7 +64,7 @@ docker-compose file.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker-compose up -d
diff --git a/wiki/docker-images/henrywhitaker3_-_speedtest-tracker.md b/wiki/docker-images/henrywhitaker3_-_speedtest-tracker.md
index 3c87627..6f268f6 100644
--- a/wiki/docker-images/henrywhitaker3_-_speedtest-tracker.md
+++ b/wiki/docker-images/henrywhitaker3_-_speedtest-tracker.md
@@ -35,7 +35,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop speedtest
 docker rm speedtest
diff --git a/wiki/docker-images/itzg_-_minecraft-server.md b/wiki/docker-images/itzg_-_minecraft-server.md
index 99ad236..0baff6d 100755
--- a/wiki/docker-images/itzg_-_minecraft-server.md
+++ b/wiki/docker-images/itzg_-_minecraft-server.md
@@ -40,7 +40,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop minecraft
 docker rm minecraft
diff --git a/wiki/docker-images/iv-org_-_invidious.md b/wiki/docker-images/iv-org_-_invidious.md
index 7837bb8..31ce418 100755
--- a/wiki/docker-images/iv-org_-_invidious.md
+++ b/wiki/docker-images/iv-org_-_invidious.md
@@ -47,7 +47,7 @@ Set the following ports in the `ports:` section.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 cd invidious
 docker-compose down
diff --git a/wiki/docker-images/jkarlos_-_git-server-docker.md b/wiki/docker-images/jkarlos_-_git-server-docker.md
index bf4833a..d86a2eb 100644
--- a/wiki/docker-images/jkarlos_-_git-server-docker.md
+++ b/wiki/docker-images/jkarlos_-_git-server-docker.md
@@ -27,7 +27,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop git-server
 docker rm git-server
diff --git a/wiki/docker-images/johnktims_-_folding-at-home.md b/wiki/docker-images/johnktims_-_folding-at-home.md
index cf964c0..edd362e 100644
--- a/wiki/docker-images/johnktims_-_folding-at-home.md
+++ b/wiki/docker-images/johnktims_-_folding-at-home.md
@@ -32,7 +32,7 @@ GPU support is documented in [the docker article](../docker.md).
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop folding-at-home
 docker rm folding-at-home
diff --git a/wiki/docker-images/kylemanna_-_openvpn.md b/wiki/docker-images/kylemanna_-_openvpn.md
index 9cec7e0..74da61c 100644
--- a/wiki/docker-images/kylemanna_-_openvpn.md
+++ b/wiki/docker-images/kylemanna_-_openvpn.md
@@ -34,7 +34,7 @@ There are some special variables to set.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop openvpn
 docker rm openvpn
diff --git a/wiki/docker-images/linuxserver_-_airsonic-advanced.md b/wiki/docker-images/linuxserver_-_airsonic-advanced.md
index a816263..cfedaba 100644
--- a/wiki/docker-images/linuxserver_-_airsonic-advanced.md
+++ b/wiki/docker-images/linuxserver_-_airsonic-advanced.md
@@ -43,7 +43,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop airsonicadv
 docker rm airsonicadv
diff --git a/wiki/docker-images/linuxserver_-_airsonic.md b/wiki/docker-images/linuxserver_-_airsonic.md
index 35d9e1e..a439e27 100644
--- a/wiki/docker-images/linuxserver_-_airsonic.md
+++ b/wiki/docker-images/linuxserver_-_airsonic.md
@@ -41,7 +41,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop airsonic
 docker rm airsonic
diff --git a/wiki/docker-images/linuxserver_-_jellyfin.md b/wiki/docker-images/linuxserver_-_jellyfin.md
index eafdf43..5ee4f50 100644
--- a/wiki/docker-images/linuxserver_-_jellyfin.md
+++ b/wiki/docker-images/linuxserver_-_jellyfin.md
@@ -48,7 +48,7 @@ Set the following ports in the `ports:` section.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker pull linuxserver/jellyfin:latest
diff --git a/wiki/docker-images/linuxserver_-_syncthing.md b/wiki/docker-images/linuxserver_-_syncthing.md
index c056dc5..8a99be3 100644
--- a/wiki/docker-images/linuxserver_-_syncthing.md
+++ b/wiki/docker-images/linuxserver_-_syncthing.md
@@ -40,7 +40,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop syncthing
 docker rm syncthing
diff --git a/wiki/docker-images/mailserver_-_docker-mailserver.md b/wiki/docker-images/mailserver_-_docker-mailserver.md
index ccdc2a8..9d27440 100644
--- a/wiki/docker-images/mailserver_-_docker-mailserver.md
+++ b/wiki/docker-images/mailserver_-_docker-mailserver.md
@@ -9,7 +9,7 @@ It contains dovecot, antispam, antivirus, ssl, etc.
 The configuration is done automatically using scripts by mailserver.
 First you need to download the essential setup files.
 
-```shell
+```sh
 wget -O .env https://raw.githubusercontent.com/docker-mailserver/docker-mailserver/master/compose.env
 wget https://raw.githubusercontent.com/docker-mailserver/docker-mailserver/master/docker-compose.yml
 wget https://raw.githubusercontent.com/docker-mailserver/docker-mailserver/master/mailserver.env
@@ -35,7 +35,7 @@ Afterwards you're ready to go by once again running the `rebuild.sh` file.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker pull mailserver/docker-mailserver:latest
diff --git a/wiki/docker-images/matrixdotorg_-_synapse.md b/wiki/docker-images/matrixdotorg_-_synapse.md
index d47de12..651e869 100644
--- a/wiki/docker-images/matrixdotorg_-_synapse.md
+++ b/wiki/docker-images/matrixdotorg_-_synapse.md
@@ -42,7 +42,7 @@ Set the following ports in the `ports:` section.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker pull matrixdotorg/synapse:latest
diff --git a/wiki/docker-images/nextcloud.md b/wiki/docker-images/nextcloud.md
index 105ad7b..b182b9e 100644
--- a/wiki/docker-images/nextcloud.md
+++ b/wiki/docker-images/nextcloud.md
@@ -30,7 +30,7 @@ Set the following ports in the `ports:` section.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker pull nextcloud:latest
diff --git a/wiki/docker-images/nginx.md b/wiki/docker-images/nginx.md
index e63d173..48fbbea 100644
--- a/wiki/docker-images/nginx.md
+++ b/wiki/docker-images/nginx.md
@@ -29,7 +29,7 @@ Set the following ports in the `ports:` section.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker pull nginx:latest
diff --git a/wiki/docker-images/olbat_-_cupsd.md b/wiki/docker-images/olbat_-_cupsd.md
index e8a572c..9d612e9 100644
--- a/wiki/docker-images/olbat_-_cupsd.md
+++ b/wiki/docker-images/olbat_-_cupsd.md
@@ -31,7 +31,7 @@ The default username is `print`, the default password is `print`.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop cups
 docker rm cups
diff --git a/wiki/docker-images/owncloud.md b/wiki/docker-images/owncloud.md
index 1398d6b..96a5264 100644
--- a/wiki/docker-images/owncloud.md
+++ b/wiki/docker-images/owncloud.md
@@ -32,7 +32,7 @@ Set the following ports in the `ports:` section.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker pull owncloud
diff --git a/wiki/docker-images/oznu_-_docker-cloudflare-ddns.md b/wiki/docker-images/oznu_-_docker-cloudflare-ddns.md
index bb4cd89..18a4135 100644
--- a/wiki/docker-images/oznu_-_docker-cloudflare-ddns.md
+++ b/wiki/docker-images/oznu_-_docker-cloudflare-ddns.md
@@ -20,7 +20,7 @@ Set the following variables with the -e tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop ddns
 docker rm ddns
diff --git a/wiki/docker-images/oznu_-_onedrive.md b/wiki/docker-images/oznu_-_onedrive.md
index 61f7e12..671b083 100644
--- a/wiki/docker-images/oznu_-_onedrive.md
+++ b/wiki/docker-images/oznu_-_onedrive.md
@@ -28,7 +28,7 @@ Set the following volumes with the -v tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop onedrive
 docker rm onedrive
diff --git a/wiki/docker-images/portainer_-_agent.md b/wiki/docker-images/portainer_-_agent.md
index 6da1575..44ed92e 100644
--- a/wiki/docker-images/portainer_-_agent.md
+++ b/wiki/docker-images/portainer_-_agent.md
@@ -27,7 +27,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop portainer_agent
 docker rm portainer_agent
diff --git a/wiki/docker-images/portainer_-_portainer.md b/wiki/docker-images/portainer_-_portainer.md
index 7a8d2b1..d085860 100644
--- a/wiki/docker-images/portainer_-_portainer.md
+++ b/wiki/docker-images/portainer_-_portainer.md
@@ -27,7 +27,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop portainer
 docker rm portainer
diff --git a/wiki/docker-images/prologic_-_golinks.md b/wiki/docker-images/prologic_-_golinks.md
index c542704..db0d92c 100644
--- a/wiki/docker-images/prologic_-_golinks.md
+++ b/wiki/docker-images/prologic_-_golinks.md
@@ -28,7 +28,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker pull prologic/golinks:latest
diff --git a/wiki/docker-images/prologic_-_gopherproxy.md b/wiki/docker-images/prologic_-_gopherproxy.md
index 2272567..be82c3b 100644
--- a/wiki/docker-images/prologic_-_gopherproxy.md
+++ b/wiki/docker-images/prologic_-_gopherproxy.md
@@ -27,7 +27,7 @@ There are some special variables to set.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop gopheroverhttp
 docker rm gopheroverhttp
diff --git a/wiki/docker-images/prologic_-_todo.md b/wiki/docker-images/prologic_-_todo.md
index 7a44568..0bd3d70 100644
--- a/wiki/docker-images/prologic_-_todo.md
+++ b/wiki/docker-images/prologic_-_todo.md
@@ -26,7 +26,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop todo
 docker rm todo
diff --git a/wiki/docker-images/rblsb_-_synctube.md b/wiki/docker-images/rblsb_-_synctube.md
index 84061e9..1e12e15 100644
--- a/wiki/docker-images/rblsb_-_synctube.md
+++ b/wiki/docker-images/rblsb_-_synctube.md
@@ -31,7 +31,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop synctube
 docker rm synctube
diff --git a/wiki/docker-images/rlister_-_hastebin.md b/wiki/docker-images/rlister_-_hastebin.md
index 92dde3c..9dff10d 100644
--- a/wiki/docker-images/rlister_-_hastebin.md
+++ b/wiki/docker-images/rlister_-_hastebin.md
@@ -34,7 +34,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop hastebin
 docker rm hastebin
diff --git a/wiki/docker-images/samba.md b/wiki/docker-images/samba.md
index 45071c9..7164f33 100644
--- a/wiki/docker-images/samba.md
+++ b/wiki/docker-images/samba.md
@@ -41,7 +41,7 @@ There are some special variables to set.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop samba
 docker rm samba
diff --git a/wiki/docker-images/searx_-_searx.md b/wiki/docker-images/searx_-_searx.md
index ed59ef4..1adb9fa 100644
--- a/wiki/docker-images/searx_-_searx.md
+++ b/wiki/docker-images/searx_-_searx.md
@@ -28,7 +28,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop searx
 docker rm searx
diff --git a/wiki/docker-images/sissbrueckner_-_linkding.md b/wiki/docker-images/sissbrueckner_-_linkding.md
index 2e7a9b5..8ce8f9a 100644
--- a/wiki/docker-images/sissbrueckner_-_linkding.md
+++ b/wiki/docker-images/sissbrueckner_-_linkding.md
@@ -36,7 +36,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop linkding
 docker rm linkding
diff --git a/wiki/docker-images/spikecodes_-_libreddit.md b/wiki/docker-images/spikecodes_-_libreddit.md
index b9c3dd8..80d3cf2 100755
--- a/wiki/docker-images/spikecodes_-_libreddit.md
+++ b/wiki/docker-images/spikecodes_-_libreddit.md
@@ -19,7 +19,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop libreddit
 docker rm libreddit
diff --git a/wiki/docker-images/teamspeak.md b/wiki/docker-images/teamspeak.md
index b676be8..3a6ad4f 100644
--- a/wiki/docker-images/teamspeak.md
+++ b/wiki/docker-images/teamspeak.md
@@ -36,7 +36,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop teamspeak3
 docker rm teamspeak3
diff --git a/wiki/docker-images/tetricz_-_mordhau-server.md b/wiki/docker-images/tetricz_-_mordhau-server.md
index e6a3e86..be3cfe3 100644
--- a/wiki/docker-images/tetricz_-_mordhau-server.md
+++ b/wiki/docker-images/tetricz_-_mordhau-server.md
@@ -49,9 +49,8 @@ Set the following ports with the -p tag.
 
 ## start.sh
 
-```shell
+```sh
 #!/bin/sh
-
 docker pull tetricz/mordhau-server
 docker run --name=mordhau \
  --restart=unless-stopped \
@@ -77,9 +76,8 @@ docker run --name=mordhau \
 
 ## stop.sh
 
-```shell
+```sh
 #/bin/sh
-
 docker stop mordhau
 docker rm mordhau
 ```
diff --git a/wiki/docker-images/tomsquest_-_docker-radicale.md b/wiki/docker-images/tomsquest_-_docker-radicale.md
index ca767ce..cba4b09 100644
--- a/wiki/docker-images/tomsquest_-_docker-radicale.md
+++ b/wiki/docker-images/tomsquest_-_docker-radicale.md
@@ -41,7 +41,7 @@ There are some special variables to set.
 
 ## rebuild.sh
 
-```shell
+```sh
 #/bin/sh
 docker stop radicale
 docker rm radicale
diff --git a/wiki/docker-images/traefik.md b/wiki/docker-images/traefik.md
index dd88841..ec78eb1 100644
--- a/wiki/docker-images/traefik.md
+++ b/wiki/docker-images/traefik.md
@@ -60,7 +60,7 @@ The last line is to add authentication.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker pull traefik:v2.4
diff --git a/wiki/docker-images/vectorim_-_riot-web.md b/wiki/docker-images/vectorim_-_riot-web.md
index 4f940ff..63c1853 100644
--- a/wiki/docker-images/vectorim_-_riot-web.md
+++ b/wiki/docker-images/vectorim_-_riot-web.md
@@ -28,7 +28,7 @@ Set the following ports in the `ports:` section.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker pull vectorim/riot-web:latest
diff --git a/wiki/docker-images/ventz_-_bind.md b/wiki/docker-images/ventz_-_bind.md
index 41d1c71..6a4f933 100644
--- a/wiki/docker-images/ventz_-_bind.md
+++ b/wiki/docker-images/ventz_-_bind.md
@@ -37,7 +37,7 @@ There are some special variables to set.
 
 ## Rebuild
 
-```shell
+```sh
 #!/bin/sh
 docker stop bind
 docker rm bind
diff --git a/wiki/docker-images/wallabag_-_wallabag.md b/wiki/docker-images/wallabag_-_wallabag.md
index 79df5b4..20f3480 100644
--- a/wiki/docker-images/wallabag_-_wallabag.md
+++ b/wiki/docker-images/wallabag_-_wallabag.md
@@ -51,7 +51,7 @@ Set the following ports in the `ports:` section.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker pull wallabag/wallabag:latest
diff --git a/wiki/docker-images/xy2z_-_pinedocs.md b/wiki/docker-images/xy2z_-_pinedocs.md
index 990821e..6a05f67 100644
--- a/wiki/docker-images/xy2z_-_pinedocs.md
+++ b/wiki/docker-images/xy2z_-_pinedocs.md
@@ -26,7 +26,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop pinedocs
 docker rm pinedocs
diff --git a/wiki/docker-images/yourls.md b/wiki/docker-images/yourls.md
index 7485d01..f6fef08 100644
--- a/wiki/docker-images/yourls.md
+++ b/wiki/docker-images/yourls.md
@@ -40,7 +40,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker-compose down
 docker-compose up -d
diff --git a/wiki/docker-images/zedeus_-_nitter.md b/wiki/docker-images/zedeus_-_nitter.md
index d771297..a9b2216 100755
--- a/wiki/docker-images/zedeus_-_nitter.md
+++ b/wiki/docker-images/zedeus_-_nitter.md
@@ -28,7 +28,7 @@ Set the following ports with the -p tag.
 
 ## rebuild.sh
 
-```shell
+```sh
 #!/bin/sh
 docker stop nitter
 docker rm nitter
diff --git a/wiki/docker.md b/wiki/docker.md
index 702521c..67f31a6 100644
--- a/wiki/docker.md
+++ b/wiki/docker.md
@@ -11,7 +11,7 @@ Due to easy handling and reproducable environments it is a useful tool.
 Another possibility is to try the official convenience script.
 To get and execute it run the following in your terminal.
 
-```shell
+```sh
 curl -fsSL https://get.docker.com -o get-docker.sh
 sudo sh get-docker.sh
 ```
diff --git a/wiki/linux/date.md b/wiki/linux/date.md
index ac26360..37acc55 100644
--- a/wiki/linux/date.md
+++ b/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
 ```
diff --git a/wiki/linux/ffmpeg.md b/wiki/linux/ffmpeg.md
index 8c2c8fe..b950d52 100644
--- a/wiki/linux/ffmpeg.md
+++ b/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
 ```
 
diff --git a/wiki/linux/hwclock.md b/wiki/linux/hwclock.md
index a561420..8cdfde2 100644
--- a/wiki/linux/hwclock.md
+++ b/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
 ```
diff --git a/wiki/linux/ip.md b/wiki/linux/ip.md
index 7dc37c3..331175c 100644
--- a/wiki/linux/ip.md
+++ b/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
 ```
diff --git a/wiki/linux/lvm.md b/wiki/linux/lvm.md
index 305a382..baf7c48 100644
--- a/wiki/linux/lvm.md
+++ b/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>
 ```
diff --git a/wiki/linux/proxmox.md b/wiki/linux/proxmox.md
index 7d38bc2..4be429d 100644
--- a/wiki/linux/proxmox.md
+++ b/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
 ```
 
diff --git a/wiki/linux/ssh.md b/wiki/linux/ssh.md
index 44d7ef6..83affb0 100644
--- a/wiki/linux/ssh.md
+++ b/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
 ```