Added by Lyndon Mark Olaguera over 2 years ago
Dear CDO experts,
I am creating lead lag files using bash and cdo.
Here's my script:
#!/bin/bash
file='test.txt'
i=1
while IFS= read -r line; do
echo $line
cdo sellevel,85000 -seldate,$line ../hgt/nc/hgt_jra55_jjas_daily_1979-2020.nc hgt_850hPa_$line.nc
i=$((i+1))
done < $file
The input (test.txt) containts dates such as:
1980-07-01
I would like to get some lag and lead dates, for example, 20 days before or 10 days after 1980-07-01.
How can I subtract "days" from the "seldate" command.
Is there a work around solution for this?
I'll appreciate any help.
Lyndz