how to recover folder data which is permanently deleted in ubuntu -

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i have project in apps folder , deleted permanently. how can recover command line,apps folder contains folders project_1, project_2 etc. , project_1 folder contains files.

depends on how long ago was. if now, shut down system , take disk image. foremost usual tool file recovery, partition intact might try things extundelete. if deleted few days ago, it's gone.


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