Update cheatsheets

tldr/linux/blkid

@@ -18,4 +18,4 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Get the UUID of the filesystem on a partition:
 
-`blkid {{[-s|--match-tag]}} UUID {{[-o|--output]}} value {{/dev/sdXY}}`
+`sudo blkid {{[-s|--match-tag]}} UUID {{[-o|--output]}} value {{/dev/sdXY}}`

tldr/linux/loginctl

@@ -6,6 +6,7 @@ source: https://github.com/tldr-pages/tldr.git
 # loginctl
 
 > Manage the systemd login manager.
+> See also: `lslogins`.
 > More information: <https://www.freedesktop.org/software/systemd/man/loginctl.html>.
 
 - Print all current sessions:

tldr/linux/pdfbook2

@@ -0,0 +1,26 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pdfbook2
+
+> Create a double sided printable PDF booklet from a PDF.
+> Note: The booklet needs to be printed double-sided in landscape mode, flipped on the long edge.
+> More information: <https://github.com/jenom/pdfbook2#examples>.
+
+- Create a booklet named `file-book.pdf` with sane defaults:
+
+`pdfbook2 {{path/to/file.pdf}}`
+
+- Create a booklet with the paper size set to A4:
+
+`pdfbook2 {{[-p|--paper]}} a4paper {{path/to/file.pdf}}`
+
+- Create a booklet that has the inner margin reduced to 50 pixels (default = 150px):
+
+`pdfbook2 {{[-p|--paper]}} a4paper {{[-i|--inner-margin]}} 50 {{path/to/file.pdf}}`
+
+- Organize a large file with print signatures for binding into a larger booklet (signatures must be divisible by 4):
+
+`pdfbook2 {{[-p|--paper]}} a4paper --signature {{24}} {{path/to/file.pdf}}`

tldr/linux/qm-create

@@ -8,13 +8,17 @@ source: https://github.com/tldr-pages/tldr.git
 > Create or restore a virtual machine on QEMU/KVM Virtual Machine Manager.
 > More information: <https://pve.proxmox.com/pve-docs/qm.1.html>.
 
-- Create a virtual machine:
+- Create a virtual machine with access to 512MiB of memory and 1 CPU core:
 
 `qm {{[cr|create]}} {{100}}`
 
 - Automatically start the machine after creation:
 
-`qm {{[cr|create]}} {{100}} --start 1`
+`qm {{[cr|create]}} {{100}} --start`
+
+- Give the virtual machine a name:
+
+`qm {{[cr|create]}} {{100}} --name {{vm_name}}`
 
 - Specify the type of operating system on the machine:
 
@@ -28,6 +32,10 @@ source: https://github.com/tldr-pages/tldr.git
 
 `qm {{[cr|create]}} {{100}} --hookscript {{path/to/script.pl}}`
 
+- Specify the install media:
+
+`qm {{[cr|create]}} {{100}} --cdrom {{local:iso/install-media.iso}}`
+
 - Create a VM that bridges itself to the host network:
 
 `qm {{[cr|create]}} {{100}} --net{{0}} virtio,bridge=vmbr{{0}}`