user:jvandrig:start
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| user:jvandrig:start [2017/08/26 00:14] – created jvandrig | user:jvandrig:start [2017/09/10 19:17] (current) – jvandrig | ||
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| - | =====Classes 1 and 2===== | + | =====Notes===== |
| ==Unix Philosophy== | ==Unix Philosophy== | ||
| 1) Do one thing and do that one thing extremely well | 1) Do one thing and do that one thing extremely well | ||
| + | |||
| 2) Small is beautiful | 2) Small is beautiful | ||
| + | |||
| 3) Everything is a file. | 3) Everything is a file. | ||
| - 3 Types of Files | - 3 Types of Files | ||
| Line 8: | Line 10: | ||
| - Directory files: in Unix these are seen with ls -l as a: d | - Directory files: in Unix these are seen with ls -l as a: d | ||
| - Special files/ | - Special files/ | ||
| + | ==Permissions== | ||
| ls -l -/ | ls -l -/ | ||
| First dash: type of file. See above. | First dash: type of file. See above. | ||
| Line 21: | Line 23: | ||
| - 1 x execute | - 1 x execute | ||
| - 0 - nothing | - 0 - nothing | ||
| + | ==Commands we learned so far== | ||
| + | - [Command] [Name] [What it does] | ||
| + | - man: Manual: Gives an index of a command. Format: man [command] [options] | ||
| + | - ls: list: Gives a list of all non-hidden items in the current directory. Format: ls [options] | ||
| + | - cd: change directory: changes the current directory. Format: cd [directories in current directory/ | ||
| + | - mv: move: (not sure what it does, man mv showed that it changes cursor location) | ||
| + | - cp: copy: copy files over from one location to another. Format: cp [source] [destination] | ||
| + | - mkdir: make directory: creates directories. Format: mkdir [name of new directory] (can make it in specific directories, | ||
| + | - echo: echo: overwrite files with written text/prints whatever you say after it. Format: echo [> (overwrite)/>> | ||
| + | - cat: cat: reads targeted file. Format: cat [filename] | ||
| + | - unzip: unzip: unzips .zip | ||
| + | - gzip: gz unzip: removes .gz from compressed files. | ||
| + | - tar: tar: extracts tar files, used like this : tar -xf (add a z to that if gz is still there, j if it's a bz2) filename | ||
| + | - tr: translate: changes characters in a file from One char into another Format: tr " | ||
| + | |||
user/jvandrig/start.1503706479.txt.gz · Last modified: 2017/08/26 00:14 by jvandrig
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