Count columns for each file in a directory
Situation: The idea here is to count the number of columns for each file in a directory. Assume that the files are named foo.YYYYMMDD and the number of columns remains consistent across the file.
> cat count_columns.zsh #! /bin/env zsh # set -x cd /path/to/dir for file in foo.* do date=`echo $file | cut -c 5-12` fields=`head -q -n 1 $file | tr "," "\n" | wc -l` printf "$date $fields\n" done
> ./count_columns.zsh > column_count.txt