Update cheatsheets

tldr/linux/dump.exfat

@@ -0,0 +1,13 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# dump.exfat
+
+> Show on-disk information of an exFAT filesystem.
+> More information: <https://manned.org/dump.exfat>.
+
+- Print on-disk information for a given filesystem:
+
+`dump.exfat {{/dev/sdXY}}`

tldr/linux/systemd-analyze

@@ -9,6 +9,10 @@ source: https://github.com/tldr-pages/tldr.git
 > Show timing details about the boot process of units (services, mount points, devices, sockets).
 > More information: <https://www.freedesktop.org/software/systemd/man/systemd-analyze.html>.
 
+- Print the last system startup time:
+
+`systemd-analyze`
+
 - List all running units, ordered by the time they took to initialize:
 
 `systemd-analyze blame`

tldr/linux/tune.exfat

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# tune.exfat
+
+> Adjust tunable filesystem parameters on an exFAT filesystem.
+> More information: <https://manned.org/tune.exfat>.
+
+- Print the volume label of a filesystem:
+
+`tune.exfat {{-l|--print-label}} {{/dev/sdXY}}`
+
+- Set the volume label of a filesystem:
+
+`tune.exfat {{-L|--set-label}} {{new_label}} {{/dev/sdXY}}`
+
+- Print the volume GUID of a filesystem:
+
+`tune.exfat {{-u|--print-guid}} {{/dev/sdXY}}`
+
+- Set the volume GUID of a filesystem:
+
+`tune.exfat {{-U|--set-guid}} {{new_guid}} {{/dev/sdXY}}`
+
+- Print the volume serial of a filesystem:
+
+`tune.exfat {{-i|--print-serial}} {{/dev/sdXY}}`
+
+- Set the volume serial of a filesystem:
+
+`tune.exfat {{-I|--set-serial}} {{new_serial}} {{/dev/sdXY}}`