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UNIX for Dummies Questions & Answers
append column and row header to a file in awk script.
Post 302683107 by zaxxon on Tuesday 7th of August 2012 08:05:08 AM
08-07-2012
No secret. If you count the number and the arguments that are following, separated by a comma, you see that the 1st part containing the numbers is defining the layout, and the 2nd part is just filling the data in the "fields".
The minus says it is left aligned, the 3 says the column is 3 characters wide, and the value supplied should be taken as a s which stands for "string".
And so on...
I have just checked how broad the columns of the heading and your input file is and have defined them for the header as well as for every line that will go through awk.
printf works like this in shell, C, awk, ..., very handy for printing formatted
The minus says it is left aligned, the 3 says the column is 3 characters wide, and the value supplied should be taken as a s which stands for "string".
And so on...
I have just checked how broad the columns of the heading and your input file is and have defined them for the header as well as for every line that will go through awk.
printf works like this in shell, C, awk, ..., very handy for printing formatted
Last edited by zaxxon; 08-07-2012 at 09:22 AM.. Reason: spelling
This User Gave Thanks to zaxxon For This Post:
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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