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Full Discussion: Extract value from delimited file base on white list
Top Forums Shell Programming and Scripting Extract value from delimited file base on white list Post 302441577 by milo7 on Sunday 1st of August 2010 10:03:23 AM
Old 08-01-2010
Extract value from delimited file base on white list
I would like to use a variable to store the IDs that I would like to extract.

I would like to extract a list of values of the IDs from a delimited string. Using bash here.

file format would be
Code:
id1=we1;id2=er2;id3=rt3;id4=yu4

The number of fields and records is not fixed. There could be just one id stored, or it could go on and on. Each record is separated by a new line and Each record starts with some random redundant text that I am not interested in..
Code:
~redundant text not interested in ~
id1=1;id2=2;id3=4;
.................;id80=8

~redundant text not interested in ~
id1=1; ................;id9=11

I am trying out the code below
Code:
list="id1,id2" #extract only id1 and id2, can be changed. each id is delimited by ','

#loop the list and extract the values of the id out
for i in $list
...
#store the value (eg 1 for id1) so that I can do a comparison 
#

if the id is less than/equal 10 i would like to print the value
if the id value is more than 10.. i would like to print the id name out as well. eg (id9=11)

How do I approach this problem? Thank you.
 

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LEARN ABOUT DEBIAN

xview_xgettext

xgettext(1)						      General Commands Manual						       xgettext(1)

NAME

       xgettext - conditionally extract strings from C programs

SYNOPSIS

       xgettext -d [ cmnopvhP ] [ -odirectory-prefix ] [ -xexclude-list ] [ filename ...  ]
       xgettext [ -amopvhP ] [ -xexclude-list ] [ filename ...	]

DESCRIPTION

       xgettext is used to automate the creation of portable message files.  A portable message file contains copies of "C" strings that are found
       in "C" source code in filename.	When the -d option is specified, xgettext places the extracted strings	in  the  file  name.po.   name	is
       either  the  domain specified in a dgettext call, or messages.po for strings extracted from gettext and textdomain calls. If the -d flag is
       not specified, xgettext places all the strings in messages.po.  The portable message file can be used as input to  the  msgfmt(1)  utility,
       which will produce a binary form of the message file than can be used at application run-time.

OPTIONS

       -a	 Extract ALL strings, not just those found in gettext, dgettext, and textdomain calls.

       -cflag	 Comments beginning with flag filename on the first line of the comment are added to file filename as # delimited comments.

       -d	 Produce  duplicates.  Does  not  sort output when writing the portable message file and will not overwrite existing output files.
		 Places output from each domain specified in a dgettext call into a separate file named for the domain, ie.  name.po

       -cflag	 Comments beginning with flag filename on the first line of the comment are added to file filename as # delimited comments.

       -mstring  Causes xgettext to fill in the msgstr line of the portable message files it produces.	 xgettext  uses  the  corresponding  msgid
		 string extracted from the "C" file, appending string.	Useful for debugging purposes.

       -n	 Add  # delimited line number comments to output file indicating the line number in the source file where each extracted string is
		 encountered.

       -ofilename
		 rename the default output file from messages.po to filename.

       -ppathname
		 Specify the directory where the output files will be placed.  This option overrides the current working directory.

       -xfilename
		 Specify a file that contains a list of strings that are not be extracted from the input files.  Each string to be  excluded  must
		 appear on a line by itself in the file filename.

       -P	 include strings in pre-processor statements.

       -v	 Verbose mode.

       -h	 Print a help message on standard output.

FILES

       messages.po   is always created, but may be empty.

SEE ALSO

       msgfmt(1), xstr(1), gettext, dgettext, textdomain(3).

								    14 Sep 1990 						       xgettext(1)
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