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Shell Programming and Scripting
XML Copy & replace problem
Post 302205501 by xenixuser on Sunday 15th of June 2008 12:37:00 PM
06-15-2008
Robotronic,
If I could bother you a bit more?
I pretty much understand what is going on, but there are a few areas that are still a bit murky.
If I am reading it right, the script breaks down as:
The -F '"' sets the field separator to a quote mark
The entire script is enclosed in a single quote or is it a back tick??
The NR==1 does ??
The OFS=FS; sets the Output Field separator equal to the Field separator or a quote mark.
The split(FILENAME, x, ".") sets the variable x with the first two character of the filename, using the . as field separator.
The prefix=toupper(x[1]) "c_"; sets the variable prefix to the contents of the variable x which has been converted to upper case and adds the "C_".
The /<sub_unit / { finds the lines to be modified???
$6=prefix $4; sets field 6 to the contents of the variable prefix and the contents of field number 4.
print sends it to output. Does it overwrite the existing xml or should it write to a temporary file and then move the temp to overwrite the original??
Again, thanks a million, I really appreciate the assistance.
If I could bother you a bit more?
I pretty much understand what is going on, but there are a few areas that are still a bit murky.
If I am reading it right, the script breaks down as:
The -F '"' sets the field separator to a quote mark
The entire script is enclosed in a single quote or is it a back tick??
The NR==1 does ??
The OFS=FS; sets the Output Field separator equal to the Field separator or a quote mark.
The split(FILENAME, x, ".") sets the variable x with the first two character of the filename, using the . as field separator.
The prefix=toupper(x[1]) "c_"; sets the variable prefix to the contents of the variable x which has been converted to upper case and adds the "C_".
The /<sub_unit / { finds the lines to be modified???
$6=prefix $4; sets field 6 to the contents of the variable prefix and the contents of field number 4.
print sends it to output. Does it overwrite the existing xml or should it write to a temporary file and then move the temp to overwrite the original??
Again, thanks a million, I really appreciate the assistance.
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LEARN ABOUT DEBIAN
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)