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sync command in Linux with Examples

  • Last Updated : 18 Jan, 2022

sync command in Linux is used to synchronize cached writes to persistent storage. If one or more files are specified, sync only them, or their containing file systems. 


sync [OPTION] [FILE]...

Note: Nothing is being shown in the screenshots just because sync command makes the cache in the background. 

Example: It will be going to sync all cached file data that belongs to the current user. 


  • sync -d: This option sync only file data, no unneeded metadata. 


sync -d /home/algoscale/Desktop/aricleslist.txt /home/algoscale/Desktop/advance.html

  • sync -f: This option will sync the file systems which contains the files. 


sync -f /home/algoscale/Desktop/aricleslist.txt

  • sync –help: This option display the help text and exit. 
sync --help

  • sync –version: This option will output version information and exit. 
sync --version

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