hadoop - How to pass Columns itself as parameter in PIG scripts -


in pig script want pass column position parameter, please let me know how can achieve that

a = load '$path' using pigstorage(''); b = group $countcolpos; c = foreach b generate group,count(a); d =  order c $0; store d  '$tempcountdir';

here how can pass value $countcolpos, using -p option comma

this works me:

$ pig -p \$0 script.pig

you need escape dollar sign shell doesn't treat environmental variable.


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