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Full Discussion: sed & awk
Top Forums Shell Programming and Scripting sed & awk Post 302233733 by Franklin52 on Monday 8th of September 2008 09:44:25 AM
Old 09-08-2008
It depends on what you want to do with Unix/Linux but first off, try to master the system utilities: ls, cat, cmp, grep, etc. and learn to use an editor like vi(m). Then, master the shell, you can do a great deal of useful work with just the shell and the utilities.

Once you've learned how to write useful scripts in the shell, try to master utilities like sed and awk.
After that you can think about a program language and that depends on what you want to do.

Regards
 

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LEARN ABOUT CENTOS

xmlstarlet

XMLSTARLET(1)                                                    xmlstarlet Manual                                                   XMLSTARLET(1)

NAME

       xmlstarlet - command line XML/XSLT toolkit

SYNOPSIS

       xmlstarlet [<options>] [<command>] [<cmd-options>]

INTRODUCTION

       XMLStarlet is a set of command line utilities (tools) which can be used to transform, query, validate, and edit XML documents and files us-
       ing simple set of shell commands in similar way it is done for plain text files using UNIX grep, sed, awk, diff, patch, join, etc commands.
       This  set of command line utilities can be used by those who deal with many XML documents on UNIX shell command prompt as well as for auto-
       mated XML processing with shell scripts.

OPTIONS

       --version
              Display the version of xmlstarlet.

       --help Display help.

COMMANDS

       Type: xmlstarlet <command> --help <ENTER> for command help

       Available commands include:

       ed (or edit)
              Edit/update XML document(s).

       sel (or select)
              Select data or query XML document(s) (XPATH, etc).

       tr (or transform)
              Transform XML documents(s) using XSLT.

       val (or validate)
              Validate XML document(s) (well-formed/DTD/XSD/RelaxNG).

       fo (or format)
              Format XML document(s).

       el (or elements)
              Display element structure of XML document.

       c14n (or canonic)
              XML canonicalization.

       ls (or list)
              List directory as XML.

       esc (or escape)
              Escape special XML characters.

       unesc (or unescape)
              Unescape special XML characters.

       pyx (or xmln)
              Convert XML into PYX format (based on ESIS - ISO 8879).

       p2x (or depyx)
              Convert PYX into XML.

REFERENCES

       XMLStarlet is a command line  toolkit  to  query/edit/check/transform  XML  documents  (for  more  information  see  http://xmlstar.source-
       forge.net/).

AUTHOR

       Mikhail Grushinskiy.

                                                                                                                                     XMLSTARLET(1)
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