mjhjmtu

Need help in mass renaming files that prepending their parent directory name to them without using rename command.

e.g.

/tmp/2017-09-22/cyber.gz
/tmp/2017-09-23/cyber.gz
/tmp/2017-09-24/cyber.tar

Also renamed files has to be copy in /tmp/archive without impacting above original files.

Looks like below

/tmp/archive/2017-09-22_cyber.gz
/tmp/archive/2017-09-23_cyber.gz
/tmp/archive/2017-09-24_cyber.tar

If not using rename here is how you can do with Shell (Bash, ksh, ksh93, mksh, zsh) Pattern substitution expansion.

find * -path "archive" -prune -o -type f -exec 
 bash -c 'echo "$1" "archive/$1///_"' find_bash '' ;

• -path "archive" -prune is excluding archive directory itself.




• $1///_ is replacing Slash / with Underscore _. The 1 is point to the find_bash first parameter which is file path passing by .

(Replace echo with cp to copy or mv to move the files)

Directory structure:

.
├── 2017-09-22
│   └── cyber.gz
├── 2017-09-23
│   └── cyber.gz
├── 2017-09-24
│   └── cyber.tar
└── archive

After executing the command:

.
├── 2017-09-22
│   └── cyber.gz
├── 2017-09-23
│   └── cyber.gz
├── 2017-09-24
│   └── cyber.tar
└── archive
 ├── 2017-09-22_cyber.gz
 ├── 2017-09-23_cyber.gz
 └── 2017-09-24_cyber.tar

Using a short shell script:

#!/bin/sh

archive='/tmp/archive'

mkdir -p "$archive"

for name in /tmp/????-??-??/*; do
 dirdate=$name%/* # dirdate=$(dirname "$name")
 dirdate=$dirdate##*/ # dirdate=$(basename "$dirdate")

 newname="$archive/$dirdate_$name##*/"

 if [ ! -e "$newname" ]; then
 echo cp "$name" "$newname"
 fi
done

This picks out dirdate as the basename of the directories that have dates as their names, and creates a new name for each file inside using this.

If the new name does not exist inside the archive directory, the file is copied there.

Remove echo from the above script to actually perform the copying.

For the given example, the script will perform the following operations:

cp /tmp/2017-09-22/cyber.gz /tmp/archive/2017-09-22_cyber.gz
cp /tmp/2017-09-23/cyber.gz /tmp/archive/2017-09-23_cyber.gz
cp /tmp/2017-09-24/cyber.tar /tmp/archive/2017-09-24_cyber.tar