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Full Discussion: Finding all files based on pattern
Top Forums Shell Programming and Scripting Finding all files based on pattern Post 302929267 by Lakshman_Gupta on Friday 19th of December 2014 05:59:11 AM
Old 12-19-2014
Thanks Don !!!

For your questions here is response

Are you performing case sensitive matches? Yes

Can the pattern match any text, or does the pattern have to match entire "words"? If you're limiting it to words, what defines a word boundary? YES it can match any pattern like it can either insurance_no or a.insurance_no= or <>insurance_no or b.insurance_no or ,insurance_no,

Will your patterns ever contain any characters that are special in a BRE or ERE? NO

Will your patterns ever contain any characters that are special in a filename matching pattern? NO

Will your patterns ever contain any whitespace characters? (If so, does the pattern need to be matched if the pattern extends across line boundaries?) NO whitespace

Do you just need to process all of the regular files in a single directory? Or do you need to process all of the regular files in a file hierarchy rooted in a directory? /file hierarchy rooted in a directory

Do you just want the names of files that contain the (uncommented) pattern for which you're searching? Or, do you want the filename and the lines that contain the pattern? If you want the lines containing the pattern; do you want entire lines or can it just be lines with the comments discarded? Looking out for the name of files which are containing the matched pattern(Uncommented one)


Ravi,
I am analyzing your solution by giving more testcases thanks for your time

I just changed the content of test_2.txt as below and its name should be returned now but its not returning.

Code:
-- insurance_no is unique no.

select *,insurance_no from
table t1,t2
where t1.name=t2.name
and t.asset>2000 --and insurance_no <> "2521"

/* based on insuranace_no cutomer full
details can be find out*/

Meanwhile i was trying below

Code:
find . -name "*.*" |xargs  -n1 -I {} sh -c 'a=`grep insurance_no {}|grep -v ".*--.*insurance_no.*"|grep -v ".*/\*.*insurance_no.*\*/"`;if [ -z "$a" ] ;then echo "1">/dev/null ; else echo {} ;fi'

but its reaching xargs limits(error below) for file name which are smaller its working fine..

Code:
xargs: Maximum argument size with insertion via {}'s exceeded

Last edited by Lakshman_Gupta; 12-19-2014 at 07:14 AM.. Reason: to add more details
 

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LEARN ABOUT SUNOS

fmlgrep

fmlgrep(1F)							   FMLI Commands						       fmlgrep(1F)

NAME

       fmlgrep - search a file for a pattern

SYNOPSIS

       fmlgrep [-b] [-c] [-i] [-l] [-n] [-s] [-v] limited_regular_expression [filename...]

DESCRIPTION

       fmlgrep	searches  filename for a pattern and prints all lines that contain that pattern. fmlgrep uses limited regular expressions (expres-
       sions that have string values that use a subset of the possible alphanumeric and special characters) like those described on the  regexp(5)
       manual page to match the patterns. It uses a compact non-deterministic algorithm.

       Be careful when using  FMLI special characters (for instance, $, `, ', ") in limited_regular_expression. It is safest to enclose the entire
       limited_regular_expression in single quotes ' ... '.

       If filename is not specified, fmlgrep assumes standard input. Normally, each line matched is copied to standard output. The  file  name	is
       printed before each line matched if there is more than one input file.

OPTIONS

       The following options are supported:

       -b	Precede  each line by the block number on which it was found. This can be useful in locating block numbers by context (first block
		is 0).

       -c	Print only a count of the lines that contain the pattern.

       -i	Ignore upper/lower case distinction during comparisons.

       -l	Print only the names of files with matching lines, separated by new-lines. Does not repeat the names of files when the pattern	is
		found more than once.

       -n	Precede each line by its line number in the file (first line is 1).

       -s	Suppress error messages about nonexistent or unreadable files.

       -v	Print all lines except those that contain the pattern.

EXIT STATUS

       The following exit values are returned:

       0	if the pattern is found (that is, TRUE)

       1	if the pattern is not found (that is, FALSE)

       2	if an invalid expression was used or filename is inaccessible

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       egrep(1), fgrep(1), fmlcut(1F), grep(1), attributes(5), regexp(5)

NOTES

       Lines are limited to  BUFSIZ characters; longer lines are truncated. BUFSIZ is defined in /usr/include/stdio.h.

       If there is a line with embedded nulls, fmlgrep will only match up to the first null; if it matches, it will print the entire line.

SunOS 5.10							    28 Mar 1995 						       fmlgrep(1F)
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