Shell Programming and Scripting

hi.txt
seeyou.txt

#!/bin/bash
# Usage: rename_from_file.sh newfilenames.txt hello.txt goodbye.txt
set -e
NEWFILENAMES=$1
shift
for FILENAME in "$@"; do 
    echo "$FILENAME" 
done | paste - $NEWFILENAMES | tr '\n' '\t' | xargs -rt -d"\t" -n2 mv

#!/bin/bash
# Usage: rename_from_file.sh hello.txt goodbye.txt <newfilenames.txt
paste <(for FILE in "$@"; do echo "$FILE"; done) - | tr '\n' '\t' | xargs -rt -d"\t" -n2 mv

while read from to; do
  mv "$from" "$to"
done <<HERE
  hello.txt hi.txt
  goodbye.txt seeyou.txt
HERE

paste <(for FILE in "$@"; do echo "$FILE"; done) - | \
    while IFS=$(echo -e "\t") read FROM TO; do mv "$FROM" "$TO"; done