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Full Discussion: Retrieve many entries using awk
Top Forums Shell Programming and Scripting Retrieve many entries using awk Post 302737945 by Priyanka Chopra on Friday 30th of November 2012 05:17:13 AM
Old 11-30-2012
Retrieve many entries using awk
Hi all

I have a problem similar to someone else while getting output using awk and retrieving certain entries.

From the attached sample file of big file I have to retreive following headings in columns from each drug card as there are many drug cards..

# Drug_Target_.*_Gene_Name

# Brand_Name

# Generic_Name

# Drug_Type

# Indication

#Mechanism_ Of_ Action


Using below code, my output is a bit random and wired even though some part are correct as mehanism keep on repeating agian and again

some time starts with the next line rather than being fit in columns

Brand name keep going wrong sometime!!

I am trying to retreive

Code:
awk 'k>0 {if (a[k] && k==2) {print a[1]":"a[2]":"a[3]":"a[4]":"a[5]":"a]6]; a[1]=a[2]=a[3]=a[4]=a[5]=a[6]"";} a[k]=a[k]?a[k]","$0:$0; k=0;} /^# / {k=1;} /^# Generic/ {k=1;} /^# Brand_Name/ {k=2;}  /^# Drug_Type/ {k=3;} /^# Indication/ {k=5;} /^# Mechanism_ Of_ Action / {k=6;} END {if (a[1]) print a[1]":"a[2]":"a[3]":"a[4]":"a[5]":"a[6];}' drugbank.txt >drugbanknew.txt

Can anybody check my code in his/her system and let me know wrong things ?High thanks
Input file.txt (15.8 KB) 
 

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LEARN ABOUT FREEBSD

colrm

COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME

     colrm -- remove columns from a file

SYNOPSIS

     colrm [start [stop]]

DESCRIPTION

     The colrm utility removes selected columns from the lines of a file.  A column is defined as a single character in a line.  Input is read
     from the standard input.  Output is written to the standard output.

     If only the start column is specified, columns numbered less than the start column will be written.  If both start and stop columns are spec-
     ified, columns numbered less than the start column or greater than the stop column will be written.  Column numbering starts with one, not
     zero.

     Tab characters increment the column count to the next multiple of eight.  Backspace characters decrement the column count by one.

ENVIRONMENT

     The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).

EXIT STATUS

     The colrm utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     awk(1), column(1), cut(1), paste(1)

HISTORY

     The colrm command appeared in 3.0BSD.

BSD
								  August 4, 2004							       BSD
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