diff --git a/sheets/caffeinate b/sheets/caffeinate
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+
+  caffeinate
+
+  Prevent a system from sleeping.
+
+  - Prevent mac from sleeping for 1 hour (3600 seconds):
+    caffeinate -u -t 3600
+
+  - Prevent mac from sleeping until a command completes:
+    caffeinate -s command
+
+
diff --git a/sheets/carthage b/sheets/carthage
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+
+  carthage
+
+  A dependency management tool for Cocoa applications.
+
+  - Download the latest version of all dependencies mentioned in Cartfile, and build them:
+    carthage update
+
+  - Update dependencies, but only build for iOS:
+    carthage update --platform ios
+
+  - Update dependencies, but don't build any of them:
+    carthage update --no-build
+
+  - Download and rebuild the current version of dependencies (without updating them):
+    carthage bootstrap
+
+  - Rebuild a specific dependency:
+    carthage build dependency
+
+
diff --git a/sheets/devfsadm b/sheets/devfsadm
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+++ b/sheets/devfsadm
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+Page not found. Updating cache ..
diff --git a/sheets/diskutil b/sheets/diskutil
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+
+  diskutil
+
+  Utility to manage local disks and volumes.
+
+  - List all currently available disks, partitions and mounted volumes:
+    diskutil list
+
+  - Repair the file system data structures of a volume:
+    diskutil repairVolume /dev/diskX
+
+  - Unmount a volume:
+    diskutil unmountDisk /dev/diskX
+
+  - Eject a CD/DVD (unmount first):
+    diskutil eject /dev/disk1
+
+
diff --git a/sheets/ditto b/sheets/ditto
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+
+  ditto
+
+  Copy files and folders.
+
+  - Overwrite contents of destination folder with contents of source folder:
+    ditto path/to/source path/to/destination
+
+  - Print a line to the Terminal window for every file that’s being copied:
+    ditto -V path/to/source path/to/destination
+
+  - Copy a given file or folder, while retaining the original file permissions:
+    ditto -rsrc path/to/source path/to/destination
+
+
diff --git a/sheets/drutil b/sheets/drutil
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+
+  drutil
+
+  Interact with DVD burners.
+
+  - Eject a disk from the drive:
+    drutil eject
+
+  - Burn a folder as an ISO9660 filesystem onto a DVD. Don't verify and eject when complete:
+    drutil burn -noverify -eject -iso9660
+
+
diff --git a/sheets/eject b/sheets/eject
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--- /dev/null
+++ b/sheets/eject
@@ -0,0 +1,19 @@
+# eject
+# eject removable media
+# You can also close the tray using certain options.
+
+# Eject any available device
+# CD-ROM, floppy disk, tape, or JAZ or ZIP disk
+eject
+
+# Eject a device by its name
+eject /dev/cdrom
+
+# Close the tray using eject command
+eject -t
+
+# Lock the hardware eject button
+eject -i on
+
+# Unlock the hardware eject button
+eject -i off
diff --git a/sheets/look b/sheets/look
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+++ b/sheets/look
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+
+  look
+
+  Look for lines in sorted file.
+
+  - Look for lines which begins with the given prefix:
+    look prefix file
+
+  - Look for lines ignoring case:
+    look -f prefix file
+
+
diff --git a/sheets/pmset b/sheets/pmset
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+++ b/sheets/pmset
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+
+  pmset
+
+  Configure macOS power management settings, as one might do in System Preferences > Energy Saver.
+  Commands that modify settings must begin with sudo.
+
+  - Display the current power management settings:
+    pmset -g
+
+  - Display the current power source and battery levels:
+    pmset -g batt
+
+  - Set display to never sleep when on charger power:
+    sudo pmset -c displaysleep 0
+
+  - Set display to sleep after 15 minutes when on battery power:
+    sudo pmset -b displaysleep 15
+
+  - Schedule computer to automatically wake up every weekday at 9 AM:
+    sudo pmset repeat wake MTWRF 09:00:00
+
+  - Restore to system defaults:
+    sudo pmset -a displaysleep 10 disksleep 10 sleep 30 womp 1
+
+
+See also: sudo
+
+
diff --git a/sheets/prctl b/sheets/prctl
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index 0000000..52ca9e8
--- /dev/null
+++ b/sheets/prctl
@@ -0,0 +1 @@
+Page not found. Updating cache ..
diff --git a/sheets/say b/sheets/say
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--- /dev/null
+++ b/sheets/say
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+
+  say
+
+  Converts text to speech.
+
+  - Say a phrase aloud:
+    say "I like to ride my bike."
+
+  - Read a file aloud:
+    say -f filename.txt
+
+  - Say a phrase with a custom voice and speech rate:
+    say -v voice -r words_per_minute "I'm sorry Dave, I can't let you do that."
+
+  - List the available voices:
+    say -v ?
+
+  - Create an audio file of the spoken text:
+    say -o filename.aiff "Here's to the Crazy Ones."
+
+
diff --git a/sheets/svgo b/sheets/svgo
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+++ b/sheets/svgo
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+
+  svgo
+
+  SVG Optimizer: a Nodejs-based tool for optimizing Scalable Vector Graphics files.
+  It applies a series of transformation rules (plugins), which can be toggled individually.
+
+  - Optimize a file using the default plugins (overwrites the original file):
+    svgo test.svg
+
+  - Optimize a file and save the result to another file:
+    svgo test.svg test.min.svg
+
+  - Optimize all SVG files within a folder (overwrites the original files):
+    svgo -f path/to/folder/with/svg/files
+
+  - Optimize all SVG files within a folder and save the resulting files to another folder:
+    svgo -f path/to/input/folder -o path/to/output/folder
+
+  - Optimize SVG content passed from another command, and save the result to a file:
+    cat test.svg | svgo -i - -o test.min.svg
+
+  - Optimize a file and print out the result:
+    svgo test.svg -o -
+
+  - Optimize a file making sure a given plugin is enabled:
+    svgo --enable=plugin_name
+
+  - Show available plugins:
+    svgo --show-plugins
+
+
diff --git a/sheets/wacaw b/sheets/wacaw
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+
+  wacaw
+
+  A little command-line tool for Mac OS X that allows you to capture both still pictures and video from an attached camera.
+
+  - Take a picture from webcam:
+    wacaw filename
+
+  - Record a video:
+    wacaw --video filename -D duration_in_seconds
+
+  - Take a picture with custom resolution:
+    wacaw -x width -y height filename
+
+  - Copy image just taken to clipboard:
+    wacaw --to-clipboard
+
+  - List the devices available:
+    wacaw -L
+
+