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Joshua Paling
March 15, 2018
Programming
0
80
Unix Commands
Explains how to understand complex unix commands. Covers pipes, stdin, stdout, stderr, xargs, etc.
Joshua Paling
March 15, 2018
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Transcript
JOSS @joshuapaling
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
✂ --
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | <THAT ARE JS / JSX> | <NOT
IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ <FORMAT THEM WITH PRETTIER> ; <STAGE THEM FOR THIS COMMIT>'
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
None
010100010101111001010 101001010010101010100 101001010111101010100
None
The quick brown fox jumped over the lazy dog.
Software dev and “Hello Hungry, I’m Dad” enthusiast. resume.txt
alert(“you have know idea what you’re getting in to”) helloWorld.js
None
None
/dev/null /dev/random /dev/zero
None
None
None
/dev/null /dev/random /dev/zero
The quick brown fox jumped over the lazy dog. /dev/null
/dev/random /dev/zero
1. Small, composable ⚒ 2. = Stream of
STDIN STDOUT STDERR
STANDARD INPUT STANDARD OUTPUT STANDARD ERROR
STANDARD INPUT STANDARD OUTPUT STANDARD ERROR
1. Small, composable ⚒ 2. = Stream of 3. 3
streams: IN, OUT, ERR
STANDARD INPUT STANDARD OUTPUT STANDARD ERROR
STANDARD INPUT STANDARD OUTPUT STANDARD ERROR /dev/null
STANDARD INPUT STANDARD OUTPUT STANDARD ERROR
STANDARD INPUT STANDARD OUTPUT STANDARD ERROR
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> anywhere.txt
>> anywhere.txt
2> anywhere.txt
2>> anywhere.txt
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> anywhere.txt < anywhere.txt
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None
None
1. Small, composable ⚒ 2. = Stream of 3. 3
streams: IN, OUT, ERR 4. ↔ with <, >, 2>
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
None
None
|
| ls -1 grep ‘res’
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1. Small, composable ⚒ 2. = Stream of 3. 3
streams: IN, OUT, ERR 4. ↔ with <, >, 2> 5. | | |
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
None
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subl stdin XgKkGs.txt
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None
1. Small, composable ⚒ 2. = Stream of 3. 3
streams: IN, OUT, ERR 4. ↔ with <, >, 2> 5. | | | 6. xargs: STDIN to ARGUMENTS
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
None
None
None
None
README.md client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | grep -E '.*\\.(js|jsx)$' | grep -v ^public/
| xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | grep -E '.*\\.(js|jsx)$' | grep -v ^public/
| xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | grep -E '.*\\.(js|jsx)$' | grep -v ^public/
| xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | <THAT ARE JS / JSX> | grep
-v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
README.md client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js
README.md client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js
client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js
<STAGED FILES> | <THAT ARE JS / JSX> | grep
-v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | <THAT ARE JS / JSX> | grep
-v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js
client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js
client/src/components/nav/Nav.jsx client/src/reducers/consideration.js public/index.js
client/src/components/nav/Nav.jsx client/src/reducers/consideration.js
<STAGED FILES> | <THAT ARE JS / JSX> | <NOT
IN PUBLIC DIR> | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | <THAT ARE JS / JSX> | <NOT
IN PUBLIC DIR> | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
client/src/components/nav/Nav.jsx client/src/reducers/consideration.js
<STAGED FILES> | <THAT ARE JS / JSX> | <NOT
IN PUBLIC DIR> | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | <THAT ARE JS / JSX> | <NOT
IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | <THAT ARE JS / JSX> | <NOT
IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | <THAT ARE JS / JSX> | <NOT
IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | <THAT ARE JS / JSX> | <NOT
IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %’
<STAGED FILES> | <THAT ARE JS / JSX> | <NOT
IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ <FORMAT THEM WITH PRETTIER> ; <STAGE THEM FOR THIS COMMIT>'
1. Small, composable ⚒ 2. = Stream of 3. 3
streams: IN, OUT, ERR 4. ↔ with <, >, 2> 5. | | | 6. xargs: STDIN to ARGUMENTS
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 %'
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c 'prettier --single- quote --trailing-comma es5 --write %; git add %'
git diff --staged --diff- filter=dx --name-only HEAD | grep -E
'.*\\.(js|jsx)$' | grep -v ^public/ | xargs -I % sh -c ‘ prettier --single-quote -- trailing-comma es5 --write %; git add %'
<STAGED FILES> | <THAT ARE JS / JSX> | <NOT
IN PUBLIC DIR> | <AND FOR THOSE FILES AS %…> ‘ <FORMAT THEM WITH PRETTIER> ; <STAGE THEM FOR THIS COMMIT>'
✂ --