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Shell Programming and Scripting
use awk to read randomly located columns in an excel file
Post 302223427 by mdap on Sunday 10th of August 2008 05:52:55 AM
08-10-2008
Thanks much aigles!!! its now working fine..
Would you mind to explain the meaning of the block of code below, if it is ok with? (",)..
NR==1 {
for (i=1; i<=NF; i++)
col_fields[$i] = i; }
{
out = "";
for (i=1; i<=cols_count; i++) {
col_hdr = cols[i];
out = (i>1 ? out OFS : "") (col_fields[col_hdr] ? $(col_fields[col_hdr]) : "?" );
}
print out;
}
THANK YOU Master!...
Would you mind to explain the meaning of the block of code below, if it is ok with? (",)..
NR==1 {
for (i=1; i<=NF; i++)
col_fields[$i] = i; }
{
out = "";
for (i=1; i<=cols_count; i++) {
col_hdr = cols[i];
out = (i>1 ? out OFS : "") (col_fields[col_hdr] ? $(col_fields[col_hdr]) : "?" );
}
print out;
}
THANK YOU Master!...
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LEARN ABOUT MOJAVE
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