How To Linux Ubuntu - Level 2

Tools and commands on files
standards
Knowing the nature of a file : file
Read or concatenate : cat
Provide statistical information on a file : wc
Extract areas or fields : cut
Cut a file : split or csplit
Compare files : diff , cmp
Sort utility : fate.
File search and associated action : find, locate .
Archiving with tar
Other less standard
Apply a diff file created by diff: patch
Find a string in a binary file : strings
Utilities associated with sorting : uniq , comm
Tools compression / decompression
compress, pack , gzip , bzip2 , ...

Reminders bash
A master before any
What is the exact role of bash ?
Attention to shared tools and bash characters (* , $, [ ... ] , ... )
Operating Principles bash
Decoding a command line: $ , *, ', " ,' , etc. ....
Redirection and pipes (<, << , >, >> , | )
The launch command ( alias, function, internal control , PATH)
The blooper bash ( common mistakes )

Automate treatments with shellscripts
Contexts using standard
Startup scripts on Linux.
The installation scripts .
Everything can be monitored ( connection, file system , files, ... )
General principle of a shellscript
Launching a script (&, shebang , source)
User variables and standards. Passing arguments .
Focus ( 2> , script , t , debugging , ... )
Postponement ( crontab )
programming
Conditional statements (if, for, while, ... )
Supplements (functions, return code, case, ... )

Publication of data
Formats and Conversions
Awareness of differences formats ( ascii, mime , ... ) .
How to solve the problems of accents ?
Show the contents of any file in various formats: od
Utility processing : tr
Tools often concerned ( dos2unix , uuencode , uudecode , ... )
Formatting a Document with Tex and Latex
How to generate a PDF document or web interlinked ( latex2pdf , latex2html ) ?
The nroff and troff formats ( such as the man pages )
Translate text to HTML with sed
Layout
Read large files : more or less
Concatenation "vertical" : paste
Limit rows to a maximum width : fold
Utility formatting : pr
Remove sequences superimposed on the standard flow : col

Grep, ed , sed, and regular expressions
Expressions régulièresLes different characters ^, $ , . , *, [, ...
Extended regular expressions .
Extract lines with grep
Simple and complex
Extraction lines " malformed "
Extensions grep ( egrep , fgrep )
Editing data with the syntax sedPhilosophie
The basic salaries ( see , delete, replace , insert )
Advanced manipulation with sed
Identify patterns in strings in line 1 , 2, ...
Compound commands and multi-
Search for alternatives
other treatments
Inserting commands ed in a script ( here document)
Manipulating Strings with expr ( complex patterns ) .

The awk language
Introducing awk
Limits grep and sed . Contributions of awk .
Schedule a matrix of patterns and associated actions.
Variables, records and fields ($ 1, $ 2, $ NR , $ NR , ... )
Reasons ( simple regular expressions) .
Awk is a language ( if, for, ... )
Essential functions of awk
The display inspired by C (print , printf ) .
Treatments chains.
advanced appearance
Associative arrays .
Functions.
interactive scripts
Example analysis of log files

How To Linux Ubuntu - Level 2

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