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Unix Commands

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Avatar for Joshua Paling Joshua Paling
March 15, 2018
Programming
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Unix Commands

Explains how to understand complex unix commands. Covers pipes, stdin, stdout, stderr, xargs, etc.

Avatar for Joshua Paling

Joshua Paling

March 15, 2018
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Transcript

  1. JOSS @joshuapaling

  2. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'

  3. ✂ --

  4. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'

  5. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'

  6. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  7. <STAGED FILES> | <THAT ARE JS / JSX> | <NOT

    IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ <FORMAT THEM WITH PRETTIER> ; <STAGE THEM FOR THIS COMMIT>'

  8. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'

  9. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
  10. None

  11. 010100010101111001010 101001010010101010100 101001010111101010100

  12. None

  13. The quick brown fox jumped over the lazy dog.

  14. Software dev and “Hello Hungry, I’m Dad” enthusiast. resume.txt

  15. alert(“you have know idea what you’re getting in to”) helloWorld.js

  16. None
  17. None

  18. /dev/null /dev/random /dev/zero

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  22. /dev/null /dev/random /dev/zero

  23. The quick brown fox jumped over the lazy dog. /dev/null

    /dev/random /dev/zero

  24. 1. Small, composable ⚒ 2. = Stream of

  25. STDIN STDOUT STDERR

  26. STANDARD INPUT STANDARD OUTPUT STANDARD ERROR

  27. STANDARD INPUT STANDARD OUTPUT STANDARD ERROR

  28. 1. Small, composable ⚒ 2. = Stream of 3. 3

    streams: IN, OUT, ERR

  29. STANDARD INPUT STANDARD OUTPUT STANDARD ERROR

  30. STANDARD INPUT STANDARD OUTPUT STANDARD ERROR /dev/null

  31. STANDARD INPUT STANDARD OUTPUT STANDARD ERROR

  32. STANDARD INPUT STANDARD OUTPUT STANDARD ERROR

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  52. > anywhere.txt

  53. >> anywhere.txt

  54. 2> anywhere.txt

  55. 2>> anywhere.txt

  56. None
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  74. > anywhere.txt < anywhere.txt

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  92. 1. Small, composable ⚒ 2. = Stream of 3. 3

    streams: IN, OUT, ERR 4. ↔ with <, >, 2>

  93. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
  94. None
  95. None

  96. |

  97. | ls -1 grep ‘res’

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  120. 1. Small, composable ⚒ 2. = Stream of 3. 3

    streams: IN, OUT, ERR 4. ↔ with <, >, 2> 5. | | |

  121. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
  122. None
  123. None
  124. None
  125. None

  126. subl stdin XgKkGs.txt

  127. None
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  157. 1. Small, composable ⚒ 2. = Stream of 3. 3

    streams: IN, OUT, ERR 4. ↔ with <, >, 2> 5. | | | 6. xargs: STDIN to ARGUMENTS

  158. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'

  159. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'

  160. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  161. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  162. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
  163. None
  164. None
  165. None
  166. None

  167. README.md client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js

  168. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  169. <STAGED FILES> | grep -E '.*\\.(js|jsx)$' | grep -v ^public/

    | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  170. <STAGED FILES> | grep -E '.*\\.(js|jsx)$' | grep -v ^public/

    | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  171. <STAGED FILES> | grep -E '.*\\.(js|jsx)$' | grep -v ^public/

    | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  172. <STAGED FILES> | <THAT ARE JS / JSX> | grep

    -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  173. README.md client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js

  174. README.md client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js

  175. client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js

  176. <STAGED FILES> | <THAT ARE JS / JSX> | grep

    -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  177. <STAGED FILES> | <THAT ARE JS / JSX> | grep

    -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  178. client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js

  179. client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js

  180. client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js

  181. client/src/components/nav/Nav.jsx client/src/reducers/consideration.js

  182. <STAGED FILES> | <THAT ARE JS / JSX> | <NOT

    IN PUBLIC DIR> | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  183. <STAGED FILES> | <THAT ARE JS / JSX> | <NOT

    IN PUBLIC DIR> | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  184. client/src/components/nav/Nav.jsx client/src/reducers/consideration.js

  185. <STAGED FILES> | <THAT ARE JS / JSX> | <NOT

    IN PUBLIC DIR> | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  186. <STAGED FILES> | <THAT ARE JS / JSX> | <NOT

    IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  187. <STAGED FILES> | <THAT ARE JS / JSX> | <NOT

    IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  188. <STAGED FILES> | <THAT ARE JS / JSX> | <NOT

    IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  189. <STAGED FILES> | <THAT ARE JS / JSX> | <NOT

    IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %’

  190. <STAGED FILES> | <THAT ARE JS / JSX> | <NOT

    IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ <FORMAT THEM WITH PRETTIER> ; <STAGE THEM FOR THIS COMMIT>'

  191. 1. Small, composable ⚒ 2. = Stream of 3. 3

    streams: IN, OUT, ERR 4. ↔ with <, >, 2> 5. | | | 6. xargs: STDIN to ARGUMENTS

  192. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'

  193. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'

  194. git diff --staged --diff- filter=dx --name-only HEAD | grep -E

    '.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'

  195. <STAGED FILES> | <THAT ARE JS / JSX> | <NOT

    IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ <FORMAT THEM WITH PRETTIER> ; <STAGE THEM FOR THIS COMMIT>'

  196. ✂ --