A developer must always back up a file before making any changes. This prevents data loss. A backup is a copy of the original file.
By Pawan Nayar · from the LLOS AI Learning record
A developer must always back up a file before making any changes.
This prevents data loss. A backup is a copy of the original file.
A developer should make a copy of a file before editing it for the first time in a work session. This copy should include the date. For example, 'filename.backup-YYYYMMDD.ext'. The developer must check disk space before creating a backup. If there is less than 500MB of free space, the developer should be careful. A full disk can cause files to be lost or damaged. When using a new script, the developer must read its code carefully. The developer needs to understand how the script saves changes. Some scripts might overwrite the original file without warning. Test modes are not always safe. Many scripts still overwrite files even when in a test mode. The developer must read the script's code to confirm its behavior. Always test changes on a small scale first. The developer should run the script on a few items. Then, the developer must check the output file to ensure no data was lost. After confirming safety, the developer can run the script on more items.
A developer needs to update a large code file. The developer forgets to make a backup. During the edit, the computer crashes. The original file is corrupted, and all recent changes are lost because there was no backup.
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Before a developer makes the first edit in any work session, a backup copy of the file must be made. The backup file name should include the date.
A developer should use a backup system with three types of backups. The 'day' backup refreshes daily.
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A developer must always back up a file before making any changes. This prevents data loss. A backup is a copy of the original file.