Update cheatsheets

tldr/ffmpeg

@@ -26,7 +26,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Trim a video from a given start time mm:ss to an end time mm2:ss2 (omit the -to flag to trim till the end):
 
-`ffmpeg -ss {{mm:ss}} -to {{mm2:ss2}} -i {{path/to/input_video.mp4}} -codec copy {{path/to/output_video.mp4}}`
+`ffmpeg -i {{path/to/input_video.mp4}} -ss {{mm:ss}} -to {{mm2:ss2}} -codec copy {{path/to/output_video.mp4}}`
 
 - Convert AVI video to MP4. AAC Audio @ 128kbit, h264 Video @ CRF 23:
 

tldr/linux/bcachefs

@@ -6,7 +6,8 @@ source: https://github.com/tldr-pages/tldr.git
 # bcachefs
 
 > Manage `bcachefs` filesystems/devices.
-> More information: <https://bcachefs.org/bcachefs-principles-of-operation.pdf>.
+> Some subcommands such as `device` have their own usage documentation.
+> More information: <https://bcachefs-docs.readthedocs.io/en/latest/index.html>.
 
 - Format a partition with `bcachefs`:
 

tldr/linux/bcachefs-device

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# bcachefs device
+
+> Manage devices within a running `bcachefs` filesystem.
+> More information: <https://bcachefs-docs.readthedocs.io/en/latest/mgmt-devicemanagement.html>.
+
+- Format and add a new device to an existing filesystem.:
+
+`sudo bcachefs device add --label={{group}}.{{name}} {{path/to/mountpoint}} {{path/to/device}}`
+
+- Migrate data off a device to prepare for removal:
+
+`bcachefs device evacuate {{path/to/device}}`
+
+- Permanently remove a device from a filesystem:
+
+`bcachefs device remove {{path/to/device}}`

tldr/linux/ceph

@@ -6,7 +6,7 @@ source: https://github.com/tldr-pages/tldr.git
 # ceph
 
 > A unified storage system.
-> More information: <https://ceph.io>.
+> More information: <https://ceph.io/en>.
 
 - Check cluster health status:
 

tldr/linux/firewall-cmd

@@ -6,15 +6,12 @@ source: https://github.com/tldr-pages/tldr.git
 # firewall-cmd
 
 > The firewalld command-line client.
+> View and adapt the runtime or permanent firewall configuration state.
 > More information: <https://firewalld.org/documentation/man-pages/firewall-cmd>.
 
-- View the available firewall zones:
+- View all available firewall zones and rules in their runtime configuration state:
 
-`firewall-cmd --get-active-zones`
-
-- View the rules which are currently applied:
-
-`firewall-cmd --list-all`
+`firewall-cmd --list-all-zones`
 
 - Permanently move the interface into the block zone, effectively blocking all communication:
 
@@ -28,10 +25,18 @@ source: https://github.com/tldr-pages/tldr.git
 
 `firewall-cmd --permanent --zone={{public}} --remove-service={{http}}`
 
-- Permanently open two arbitrary ports in the specified zone:
+- Permanently forward a port for incoming packets in the specified zone (like port 443 to 8443 when entering the `public` zone):
 
-`firewall-cmd --permanent --zone={{public}} --add-port={{25565/tcp}} --add-port={{19132/udp}}`
+`firewall-cmd --permanent --zone={{public}} --add-rich-rule='rule family="{{ipv4|ipv6}}" forward-port port="{{443}}" protocol="{{udp|tcp}}" to-port="{{8443}}"'`
 
-- Reload firewalld to force rule changes to take effect:
+- Reload firewalld to lose any runtime changes and force the permanent configuration to take effect immediately:
 
 `firewall-cmd --reload`
+
+- Save the runtime configuration state to the permanent configuration:
+
+`firewall-cmd --runtime-to-permanent`
+
+- Enable panic mode in case of Emergency. All traffic is dropped, any active connection will be terminated:
+
+`firewall-cmd --panic-on`

tldr/linux/xfs_repair

@@ -0,0 +1,13 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# xfs_repair
+
+> Repair an XFS filesystem.
+> More information: <https://manned.org/xfs_repair>.
+
+- Repair a partition:
+
+`sudo xfs_repair {{path/to/partition}}`

tldr/lsd

@@ -17,26 +17,26 @@ source: https://github.com/tldr-pages/tldr.git
 
 `lsd -a`
 
-- List all files and directories with trailing `/` added to directory names:
+- List files and directories with trailing `/` added to directory names:
 
 `lsd -F`
 
-- List all files and directories in long format (permissions, ownership, size, and modification date):
+- List all files and directories in long format (permissions, ownership, size in human-readable format, and modification date):
 
-`lsd -la`
+`lsd -lha`
 
-- List all files and directories in long format with size displayed using human-readable units (KiB, MiB, GiB):
-
-`lsd -lh`
-
-- List all files and directories in long format, sorted by size (descending):
+- List files and directories in long format, sorted by size (descending):
 
 `lsd -lS`
 
-- List all files and directories in long format, sorted by modification date (oldest first):
+- List files and directories in long format, sorted by modification date (oldest first):
 
 `lsd -ltr`
 
 - Only list directories:
 
 `lsd -d {{*/}}`
+
+- Recursively list all directories in a tree format:
+
+`lsd --tree -d`

tldr/pulumi-about

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pulumi about
+
+> Print information about the Pulumi environment.
+> More information: <https://www.pulumi.com/docs/iac/cli/commands/pulumi_about/>.
+
+- Print information about the Pulumi environment:
+
+`pulumi about`
+
+- Print information about the Pulumi environment in JSON format:
+
+`pulumi about --json`
+
+- Print information about the Pulumi environment of a specific stack:
+
+`pulumi about --stack {{stack_name}}`
+
+- Display help:
+
+`pulumi about --help`

tldr/pulumi-preview

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pulumi preview
+
+> Show a preview of updates to a stack's resources.
+> More information: <https://www.pulumi.com/docs/iac/cli/commands/pulumi_preview/>.
+
+- Show a preview of updates to a stack's resources:
+
+`pulumi preview`
+
+- Show a preview of updates to a stack's resources in JSON format:
+
+`pulumi preview --json`
+
+- Preview updates as a rich diff showing overall changes:
+
+`pulumi preview --diff`
+
+- Display help:
+
+`pulumi preview --help`