Backup all files in directory

dow

The command below can be used to backup all files in a directory
IFS=$'\n';for file in *; do cp ${file}{,.bak}; done
Quick explanation:
1. Set IFS - This allows for files with spaces in their name.
2. Use all files (*) - Change this to only backup certain files.
3. Use expansion to copy each file from 'filename' to 'filename.bak'

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