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Top Forums UNIX for Dummies Questions & Answers awk to print first row with forth column and last row with fifth column in each file Post 302768657 by Don Cragun on Saturday 9th of February 2013 05:50:25 AM
Old 02-09-2013
Quote:
Originally Posted by cdfd123
file with this content

Code:
PPP11 OFS HIGH 1200 1401 + 0 KNOW
PPP22 OFS HIGH 1433 1588 - 2 KNOW

u want to print first row with fourth column and second row with fifth column; the code is below
Code:
awk 'NR==1 {print $4} && NR==2 {print $5}' file

The error is shown with syntax error; what can be done

And another question is that if there is to print first row with fourth column and last row with fifth column; in each file; how the solution with awk will be?
First, please use CODE tags (not QUOTE tags) to show contents of files.

Second, we seem to have a language barrier. I do not understand what you want. Are you asking for a script that uses awk to read two lines from a file and write just column 4 from the 1st row and column 5 from the 2nd row? If this is what you want, you can get it using something like:
Code:
awk 'NR==1 {print $4}
NR==2 {print $5}' file

Are you asking for a script that reads a file and prints the 1st line that contains 4 or more columns and the 2nd line that contains 5 or more columns?

Please show us the output you want from the sample input you provide (in CODE tags) so we more clearly understand what you're trying to do.
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PSC(1)							      General Commands Manual							    PSC(1)

NAME
psc - prepare sc files SYNOPSIS
psc [-fLkrSPv] [-s cell] [-R n] [-C n] [-n n] [-d c] DESCRIPTION
Psc is used to prepare data for input to the spreadsheet calculator sc(1). It accepts normal ascii data on standard input. Standard out- put is a sc file. With no options, psc starts the spreadsheet in cell A0. Strings are right justified. All data on a line is entered on the same row; new input lines cause the output row number to increment by one. The default delimiters are tab and space. The column for- mats are set to one larger than the number of columns required to hold the largest value in the column. OPTIONS
-f Omit column width calculations. This option is for preparing data to be merged with an existing spreadsheet. If the option is not specified, the column widths calculated for the data read by psc will override those already set in the existing spreadsheet. -L Left justify strings. -k Keep all delimiters. This option causes the output cell to change on each new delimiter encountered in the input stream. The default action is to condense multiple delimiters to one, so that the cell only changes once per input data item. -r Output the data by row first then column. For input consisting of a single column, this option will result in output of one row with multiple columns instead of a single column spreadsheet. -s cell Start the top left corner of the spreadsheet in cell. For example, -s B33 will arrange the output data so that the spreadsheet starts in column B, row 33. -R n Increment by n on each new output row. -C n Increment by n on each new output column. -n n Output n rows before advancing to the next column. This option is used when the input is arranged in a single column and the spreadsheet is to have multiple columns, each of which is to be length n. -d c Use the single character c as the delimiter between input fields. -P Plain numbers only. A field is a number only when there is no imbedded [-+eE]. -S All numbers are strings. -v Print the version of psc SEE ALSO
sc(1) AUTHOR
Robert Bond PSC 7.16 19 September 2002 PSC(1)
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