cat testemails | awk 'BEGIN{FS=OFS="|"} {printf("%s ",$1); print `print $1|shasum -a 256` }'

cat shasum256.sh
#!/bin/sh
shasum256()
{
 x=`print $1|shasum -a 256|awk '{print $1}'`
return x
}

cat shasum.sh
#!/bin/sh
cat TestEmail.dat | awk 'BEGIN{FS=OFS="|"} {printf("%s ",$1); system(". shasum256.sh;shasum256 " $2)}' > TestEmailHash.dat