sync:tldr:e830a

sync: Flush all pending write operations on a single file to disk.

sync

$ sync ${filename}

try on your machine

The command "sync ${filename}" is likely used to synchronize the contents of a file specified by the variable "filename" with a storage medium. Here is an explanation of the components:

"sync" is a command typically used on Unix-based systems to ensure that file systems are in a consistent and stable state. It is often employed before turning off or disconnecting a storage device to prevent data loss or corruption. Running "sync" ensures that modified data in cache is saved to disk.
"${filename}" is a placeholder for a variable that should be substituted with an actual file name. The command will work with the file specified by the value assigned to the variable.

Overall, the command "sync ${filename}" instructs the system to synchronize the data of a specific file with the underlying storage media to avoid data loss or file corruption.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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