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Top Forums Shell Programming and Scripting Extract file records based on some field conditions Post 302475769 by mehimadri on Monday 29th of November 2010 11:44:56 PM
Old 11-30-2010
Extract file records based on some field conditions

Hello Friends,

I have a file(InputFile.csv) with the following columns(the columns are pipe-delimited):
ColA|ColB|ColC|ColD|ColE|ColF

Now for this file, I have to get those records which fulfil the following condition:
If "ColB" is NOT NULL and "ColD" has values one of the following ('A','B','C') the show the records

If the aforementioned condition is satisfied then I need to have those records only in a separate file.

Please help me in this! Thanks in Advance!!

with warm regards
 

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CUT(1)							      General Commands Manual							    CUT(1)

NAME
cut - select out columns of a file SYNOPSIS
cut [ -b | -c] list [file...] cut -f list [-d delim] [ -s] OPTIONS
-b Cut specified bytes -c Select out specific characters -d Change the column delimiter to delim -f Select out specific fields that are separated by the -i Runs of delimiters count as one -s Suppres lines with no delimiter characters, when used EXAMPLES
cut -f 2 file # Extract field 2 cut -c 1-2,5 file # Extract character columns 1, 2, and 5 cut -c 1-5,7- file # Extract all columns except 6 DESCRIPTION
[file...]" delimiter character ( see delim)" with the -f option. Lines with no delimiters are passwd through untouched" Cut extracts one or more fields or columns from a file and writes them on standard output. If the -f flag is used, the fields are sepa- rated by a delimiter character, normally a tab, but can be changed using the -d flag. If the -c flag is used, specific columns can be specified. The list can be comma or BLANK separated. The -f and -c flags are mutually exclusive. Note: The POSIX1003.2 standard requires the option -b to cut out specific bytes in a file. It is intended for systems with multi byte characters (e.g. kanji), since MINIX uses only one byte characters, this option is equivalent to -c. For the same reason, the option -n has no effect and is not listed in this man- ual page. SEE ALSO
sed(1), awk(9). CUT(1)
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