List the number of files in sftp

listfiles.sh

echo "ls *.csv" | sftp -q <username>@<hostname>:<directory> | grep -v '^stfp>' | wc -l
// E.g. echo "ls *.csv" | sftp -q [email protected]:/nfiIndustries | grep -v '^stfp>' | wc -l

Renamefiles.sh

#!/bin/bash
username=
hostname=
currentdir=
filename=
(
  echo cd $currentdir
  for file in `(sed -n -e '1,2p' $filename)`
  do
    echo rename $file /nfiIndustries/Historical_candidate_`echo $file|cut -d'_' -f2-`
  done
)|sftp $username@$hostname