UNIX for Dummies Questions & Answers

#! /bin/bash

usage() {
  printf "Usage: $0 source_dir dest_dir files.csv ...\n"
  exit 1
}

(($# < 3)) && usage

[ -d "$1" -a -d "$2" ] || usage

src="$1" dest="$2" dt=$(date +%d%m%Y)
shift 2

for f; do
  [ -f "$src/$f" ] || { printf "$src/$f is not a regular file\n"; continue;}
  mv -f "$src/$f" "$dest/${f%.csv}_$dt.csv" 2>/dev/null ||
    { printf "Cannot move $src/$f to $dest/${f%.csv}_$dt.csv\n"; continue;}
done

./script_name source_dir dest_dir filenames.csv ...

#! /bin/bash

usage() {
  printf "Usage: $0 source_dir dest_dir \"pattern\"\n"
  exit 1
}

(($# < 3)) && usage

[ -d "$1" -a -d "$2" ] || usage
src="$1" dest="$2" pattern="$3" dt=$(date +%d%m%Y)

for f in "$src"/$pattern; do
  [ -f "$f" ] || { printf "$f is not a regular file\n"; continue;}
  t="${f##*/}"
  e="${f##*.}"
  mv -f "$f" "$dest/${t%.*}_$dt.csv.$e" 2>/dev/null ||
    { printf "Cannot move $f to $dest/${t%.*}_$dt.$e\n"; continue;}
done

./script_name source_dir dest_dir "*.csv"