UnixTools01

Files, Directories, Working Directory

• ls
• pwd
• cd
• ls -l
• Die Verzeichnisse . und ..

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Path Names

• a/b/c relativer Path
• /a/b/c absoluter Path
• usage of <TAB> when entering file names in bash

• ~/..
• /tmp/../etc/../../bin/../usr
• /usr/bin/././..

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Basic Shell Commands

• cat
• touch
• rm
• mkdir
• rmdir
• mv

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Using Wildcards to identify files

• echo Hello World
• echo *

• ls *
• ls *.*
• ls a*
• ls *a
• ls *a*

• rm /tmp/a*
• ls /tmp/[a-c]*
• ls /*/bin/a*

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Editor - Erstellen und Bearbeiten von Text-Dateie n

• nano
• alternatives: vi, vim, nedit, emacs

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more basic tools

• more
• wc
• grep
• tail
• head
• find
• Expert Tipp: grep muster $(find / -name patern -print)

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Getting help

• grep --help

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Redirection - part 1

redirecting output of a programm to another file

• ls /bin/a* > file.txt
• ls > /dev/null

append output to a file

• ls /bin/b* >> file.txt

let a programm take its input from a file (redirecting input)

• more < file.txt
• wc < file.txt

let the output of programm be used as input of another program

• ls -lisa /bin | more
• ls -lisa /bin | wc

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Argumente mit Sonderzeichen

• touch "Good Morning"
• touch '$*()#!'

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Redirection - part 2

• ls * 2> /dev/null
• ls 2>&1 | more
• << END

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Alias

• alias ll='ls -lisa'
• .bashrc (erstes Kennenlernen)

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Spraxche ändern

 export LANG=en_US
 export LANGUAGE=en_US

 export LANG=ru-RU
 export LANGUAGE=ru-RU

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