mirror of https://github.com/cheat/cheat.git
updated emacs, ffmpeg. branched org-mode. added slack.
This commit is contained in:
Klaatu
parent
eff042d50b
commit
0a54b2a2ff
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@ -0,0 +1,3 @@
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# Extract contents of a .deb file
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$ ar vx foo.deb # -> data.tar.gz
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$ tar xf data.tar.gz
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@ -3,7 +3,7 @@
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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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Paste ("yank") 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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@ -11,7 +11,7 @@
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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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Cancel a command CTRL-g
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Font size bigger CTRL-x CTRL-+
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Font size smaller CTRL-x CTRL--
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@ -30,7 +30,7 @@
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# Other stuff
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Open a shell ALT-x eshell
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Open a shell ALT-x shell
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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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@ -39,32 +39,9 @@
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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 $*'
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# Line numbers
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To add line numbers and enable moving to a line with CTRL-l:
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(global-set-key "\C-l" 'goto-line)
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(add-hook 'find-file-hook (lambda () (linum-mode 1)))
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# Org-mode
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To begin org-mode ALT-x org-mode
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Table column separator Vertical/pipe character
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Reorganize table TAB
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Section heading *
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Open/collapse section TAB
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Open/collapse All CTRL-TAB
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Export in other file formats (eg HTML,PDF) CTRL-c CTRL-e
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To make org-mode automatically wrap lines:
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(add-hook 'org-mode-hook
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'(lambda ()
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(visual-line-mode 1)))
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@ -2,7 +2,14 @@
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ffmpeg -i path/to/file.ext
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# Convert all m4a files to mp3
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for f in *.m4a; do ffmpeg -i "$f" -acodec libmp3lame -ab 320k "${f%.m4a}.mp3"; done
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for f in *.m4a; do ffmpeg -i "$f" -acodec libmp3lame -vn -b:a 320k "${f%.m4a}.mp3"; done
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# Convert video
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# -g : GOP, for searchability
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ffmpeg -i input.ext -vcodec vp9 -acodec libopus -b:v 21000k -b:a 320k -g 150 -threads 4 output.ext
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# Convert image sequence to video
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ffmpeg -r 18 -pattern_type glob -i '*.png' -b:v 21000k -s hd1080 -vcodec vp9 -an -pix_fmt yuv420p -deinterlace output.ext
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# Listen to 10 seconds of audio from a video file
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#
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@ -10,3 +17,4 @@ for f in *.m4a; do ffmpeg -i "$f" -acodec libmp3lame -ab 320k "${f%.m4a}.mp3"; d
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# -t : seconds to cut
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# -autoexit : closes ffplay as soon as the audio finishes
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ffmpeg -ss 00:34:24.85 -t 10 -i path/to/file.mp4 -f mp3 pipe:play | ffplay -i pipe:play -autoexit
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@ -0,0 +1,46 @@
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Begin org-mode ALT-x org-mode
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Save CTRL-x CTRL-s
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Export in other file formats (eg HTML,PDF) CTRL-c CTRL-e
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# Outline
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Section heading *
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New headline ALT-return
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Move headline up or down ALT-up_arrow/down_arrow
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Adjust indent depth of headline ALT-left_arrow/right_arrow
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Open/collapse section TAB
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Open/collapse All CTRL-TAB
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# To-Do Lists
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Mark list item as TODO ** TODO
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Cycle through workflow SHIFT-left_arrow/right_arrow
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Show only outstanding TODO items CTRL-c CTRL-v
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# Tables
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Table column separator Vertical/pipe character
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Reorganize table TAB
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Move column ALT-left_arrow/right_arrow
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Move row ALT-up_arrow/down_arrow
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# Styles
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*bold*
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/italic/
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_underlined_
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=code=
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~verbatim~
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+strike-through+
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# Heading
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Header -*- mode: org -*-
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# .emacs
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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 +1,27 @@
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# Create a Slackware package from a structured directory and sub-tree
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$ cd /path/to/pkg/dir
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$ su - c 'makepkg --linkadd y --chown n $foo-1.0.3-x86_64-1_tag.tgz'
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# Install a Slackware package
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installpkg foo-1.0.3-x86_64-1.tgz
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# Install a Slackware package to non-standard location
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ROOT=/path/to/dir installpkg foo-1.0.4-noarch-1.tgz
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# Create backup of files that will be overwritten when installing
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tar czvf /tmp/backup.tar.gz $(installpkg --warn foo-1.0.4-noarch-1.tgz)
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# Upgrade a Slackware package including files only in new version
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upgradepkg --install-new foo-1.0.6-noarch-1.tgz
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# Upgrade a Slackware package even if version is the same
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upgradepkg --reinstall foo-1.0.4-noarch-1.tgz
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# Remove a Slackware package
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removepkg foo-0.2.8-x86_64-1
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# Remove a Slackware package, retaining a backup (uninstalled) copy
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removepkg -copy foo-0.2.8-x86_64-1 # -> /var/log/setup/tmp/preserved_packages/foo...
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@ -0,0 +1,5 @@
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# List contents of RPM
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rpm2cpio foo.rpm | cpio -vt
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# Extract contents of RPM
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rpm2cpio foo.rpm | cpio -vid
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@ -0,0 +1,32 @@
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# Sync to newest SlackBuild.org tree
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sport r
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# Search (fuzzy) SlackBuild tree for packages foo and BaR
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sport s foo bar
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# Operate from alternate build tree
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SBOPATH=/path/to/tree sport s foo
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# View info and README of BaR (not fuzzy)
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sport c foo BaR
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# Build a package
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sport i --build-only foo
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# Build and install package foo and BaR
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sport i foo BaR
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# Build and install package from current directory
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sport i .
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# Upgrade instead of install
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INSTALLER=upgradepkg sport i foo
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# Build dependency list for baz
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echo "foo BaR" >> /tmp/baz.list
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# Install list of packages from file
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sport i $(< /tmp/baz.list)
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# Check if package is installed
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sport k foo
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# Trash foo and bar
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trash foo bar
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# Trash "foo bar"
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trash foo\ bar
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# List files in trash
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trash -v --list
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# Restore foo from trash
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trash --restore foo
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# Empty trash
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trash --empty
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