mirror of https://github.com/cheat/cheat.git
Merge pull request #51 from fuzzgun/master
Added sheets for emacs and gpg
This commit is contained in:
Chris Lane
commit
d3de6c71c0
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# Basic usage
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Indent Select text then press TAB
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Cut CTRL-w
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Copy ALT-w
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Paste CTRL-y
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Search/Find CTRL-s
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Replace ALT-% (ALT-SHIFT-5)
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Save CTRL-x CTRL-s
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Load/Open CTRL-x CTRL-f
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Undo CTRL-x u
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Highlight all text CTRL-x h
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Directory listing CTRL-x d
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Cancel a command ESC ESC ESC
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Font size bigger CTRL-x CTRL-+
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Font size smaller CTRL-x CTRL--
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# Buffers
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Split screen vertically CTRL-x 2
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Split screen vertically with 5 row height CTRL-u 5 CTRL-x 2
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Split screen horizontally CTRL-x 3
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Split screen horizontally with 24 column width CTRL-u 24 CTRL-x 3
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Revert to single screen CTRL-x 1
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Hide the current screen CTRL-x 0
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Kill the current screen CTRL-x k
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Move to the next buffer CTRL-x O
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Select a buffer CTRL-x b
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Run command in the scratch buffer CTRL-x CTRL-e
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# Other stuff
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Open a shell ALT-x eshell
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Goto a line number ALT-x goto-line
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Word wrap ALT-x toggle-word-wrap
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Spell checking ALT-x flyspell-mode
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Line numbers ALT-x linum-mode
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Toggle line wrap ALT-x visual-line-mode
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Compile some code ALT-x compile
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List packages ALT-x package-list-packages
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# Sudoing within eshell
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By default when using the sudo command within eshell you'll just
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get "permission denied" messages. To overcome that type:
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alias sudo '*sudo $*'
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# Line numbers
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To add line numbers and enable moving to a line with CTRL-l:
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(global-set-key "\C-l" 'goto-line)
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(add-hook 'find-file-hook (lambda () (linum-mode 1)))
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# Org-mode
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To begin org-mode ALT-x org-mode
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Table column separator Vertical/pipe character
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Reorganize table TAB
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Section heading *
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Open/collapse section TAB
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Open/collapse All CTRL-TAB
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Export in other file formats (eg HTML,PDF) CTRL-c CTRL-e
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To make org-mode automatically wrap lines:
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(add-hook 'org-mode-hook
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'(lambda ()
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(visual-line-mode 1)))
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@ -0,0 +1,173 @@
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# Create a key
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gpg --gen-key
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# Show keys
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To list a summary of all keys
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gpg --list-keys
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To show your public key
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gpg --armor --export
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To show the fingerprint for a key
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gpg --fingerprint KEY_ID
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# Search for keys
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gpg --search-keys 'user@emailaddress.com'
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# To Encrypt a File
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gpg --encrypt --recipient 'user@emailaddress.com' example.txt
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# To Decrypt a File
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gpg --output example.txt --decrypt example.txt.gpg
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# Export keys
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gpg --output ~/public_key.txt --armor --export KEY_ID
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gpg --output ~/private_key.txt --armor --export-secret-key KEY_ID
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Where KEY_ID is the 8 character GPG key ID.
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Store these files to a safe location, such as a USB drive, then
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remove the private key file.
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shred -zu ~/private_key.txt
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# Import keys
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Retrieve the key files which you previously exported.
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gpg --import ~/public_key.txt
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gpg --allow-secret-key-import --import ~/private_key.txt
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Then delete the private key file.
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shred -zu ~/private_key.txt
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# Revoke a key
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Create a revocation certificate.
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gpg --output ~/revoke.asc --gen-revoke KEY_ID
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Where KEY_ID is the 8 character GPG key ID.
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After creating the certificate import it.
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gpg --import ~/revoke.asc
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Then ensure that key servers know about the revokation.
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gpg --send-keys KEY_ID
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# Signing and Verifying files
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If you're uploading files to launchpad you may also want to include
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a GPG signature file.
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gpg -ba filename
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or if you need to specify a particular key:
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gpg --default-key <key ID> -ba filename
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This then produces a file with a .asc extension which can be uploaded.
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If you need to set the default key more permanently then edit the
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file ~/.gnupg/gpg.conf and set the default-key parameter.
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To verify a downloaded file using its signature file.
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gpg --verify filename.asc
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# Signing Public Keys
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Import the public key or retrieve it from a server.
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gpg --keyserver <keyserver> --recv-keys <Key_ID>
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Check its fingerprint against any previously stated value.
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gpg --fingerprint <Key_ID>
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Sign the key.
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gpg --sign-key <Key_ID>
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Upload the signed key to a server.
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gpg --keyserver <keyserver> --send-key <Key_ID>
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# Change the email address associated with a GPG key
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gpg --edit-key <key ID>
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adduid
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Enter the new name and email address. You can then list the addresses with:
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list
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If you want to delete a previous email address first select it:
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uid <list number>
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Then delete it with:
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deluid
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To finish type:
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save
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Publish the key to a server:
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gpg --send-keys <key ID>
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# Creating Subkeys
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Subkeys can be useful if you don't wish to have your main GPG key
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installed on multiple machines. In this way you can keep your
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master key safe and have subkeys with expiry periods or which may be
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separately revoked installed on various machines. This avoids
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generating entirely separate keys and so breaking any web of trust
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which has been established.
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gpg --edit-key <key ID>
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At the prompt type:
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addkey
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Choose RSA (sign only), 4096 bits and select an expiry period.
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Entropy will be gathered.
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At the prompt type:
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save
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You can also repeat the procedure, but selecting RSA (encrypt only).
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To remove the master key, leaving only the subkey/s in place:
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gpg --export-secret-subkeys <subkey ID> > subkeys
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gpg --export <key ID> > pubkeys
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gpg --delete-secret-key <key ID>
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Import the keys back.
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gpg --import pubkeys subkeys
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Verify the import.
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gpg -K
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Should show sec# instead of just sec.
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