CODEWITHSUNDEEP
bashshell
Bijan
Bijan

Reputation: 8602

Shell Script: Copy Multiple Files and add Timestamp

I have a folder that contains a few .db files and I am trying to create a shell script that copies every *.db file but adds the current date to the file

For example, the folder contains A.db, B.db, C.db. I want it to copy A.db to /Backups/A_2016_07_21.db and so on.

I know I can do cp -a A.db /Backups/A.db but I am looking for a more automated way to do it for every *.db file and also add the current date

Upvotes: 2

Views: 3183

Answers (2)

Michael Ojeda
Michael Ojeda

Reputation: 1

You can use a one line for loop.

for file in $( ls /dir/*.db ); do cp $file /Backups/$( echo $file | cut -d. -f1 )_$( date +%Y_%m_%d ).$( echo $file | cut -d. -f2 ); done

Break down: for file in $( ls /dir/*.db ) - makes a list of all .db files

cp $file - copies the files (pretty self-explanatory)

/Backups/$( echo $file | cut -d. -f1 ) - extracts the first part of the filename. e.g. A.db -> A

$( date +%Y%m_%d ) - prints the date, with an underscore in front.

.$( echo $file | cut -d. -f2 ) - and finally extracts the last part of the filename with a prefix of "."

Upvotes: 0

heemayl
heemayl

Reputation: 42017

Iterate over the files using a for construct and cp files to the destination with getting desired file names using bash parameter expansion and date:

for f in *.db; do cp -a "$f" /Backups/""${f%.db}"_$(date '+%Y_%m_%d').db"; done

Upvotes: 4

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