What happens with simultaneous scp and mv?

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What happens when I scp large file from computer A to computer B, then move mv that file to a different location on the same partition of computer B before the scp is complete?

I assume just the location is updated in the directory entry? So my file will not be corrupted in any way by doing so?

filesystems scp mv

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Morgoth

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What happens when I scp large file from computer A to computer B, then move mv that file to a different location on the same partition of computer B before the scp is complete?

I assume just the location is updated in the directory entry? So my file will not be corrupted in any way by doing so?

filesystems scp mv

share|improve this question

edited 3 hours ago

asked 4 hours ago

Morgoth

1067

add a comment | 

up vote
1
down vote

favorite

1

up vote
1
down vote

favorite

1

1

What happens when I scp large file from computer A to computer B, then move mv that file to a different location on the same partition of computer B before the scp is complete?

I assume just the location is updated in the directory entry? So my file will not be corrupted in any way by doing so?

filesystems scp mv

share|improve this question

edited 3 hours ago

asked 4 hours ago

Morgoth

1067

What happens when I scp large file from computer A to computer B, then move mv that file to a different location on the same partition of computer B before the scp is complete?

I assume just the location is updated in the directory entry? So my file will not be corrupted in any way by doing so?

filesystems scp mv

filesystems scp mv

share|improve this question

edited 3 hours ago

asked 4 hours ago

Morgoth

1067

share|improve this question

edited 3 hours ago

asked 4 hours ago

Morgoth

1067

share|improve this question

share|improve this question

edited 3 hours ago

edited 3 hours ago

edited 3 hours ago

asked 4 hours ago

Morgoth

1067

asked 4 hours ago

Morgoth

1067

asked 4 hours ago

Morgoth

1067

1067

add a comment | 

add a comment | 

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Yes, assuming the target where the file is moved to is on same file system moving the file will only update directory entries. Moving a file won't alter the file descriptor which scp uses to access the file on B ^[note].

On different filesystems mv has to copy the file first, and then unlink the file at old location. The only situation you could see corruption is if you move to different filesystem before transfer is complete (scp has not received everything/flushed write buffers before mv). Then it is possible mv might copy the file only partially.

^{[note]: if scp tranfer was interrupted, obviously it could not be resumed using the original path if the file was moved.}

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edited 4 hours ago

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sebasth

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1 Answer
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Yes, assuming the target where the file is moved to is on same file system moving the file will only update directory entries. Moving a file won't alter the file descriptor which scp uses to access the file on B ^[note].

On different filesystems mv has to copy the file first, and then unlink the file at old location. The only situation you could see corruption is if you move to different filesystem before transfer is complete (scp has not received everything/flushed write buffers before mv). Then it is possible mv might copy the file only partially.

^{[note]: if scp tranfer was interrupted, obviously it could not be resumed using the original path if the file was moved.}

share|improve this answer

edited 4 hours ago

answered 4 hours ago

sebasth

6,28821643

add a comment | 

up vote
5
down vote

Yes, assuming the target where the file is moved to is on same file system moving the file will only update directory entries. Moving a file won't alter the file descriptor which scp uses to access the file on B ^[note].

On different filesystems mv has to copy the file first, and then unlink the file at old location. The only situation you could see corruption is if you move to different filesystem before transfer is complete (scp has not received everything/flushed write buffers before mv). Then it is possible mv might copy the file only partially.

^{[note]: if scp tranfer was interrupted, obviously it could not be resumed using the original path if the file was moved.}

share|improve this answer

edited 4 hours ago

answered 4 hours ago

sebasth

6,28821643

add a comment | 

up vote
5
down vote

up vote
5
down vote

Yes, assuming the target where the file is moved to is on same file system moving the file will only update directory entries. Moving a file won't alter the file descriptor which scp uses to access the file on B ^[note].

On different filesystems mv has to copy the file first, and then unlink the file at old location. The only situation you could see corruption is if you move to different filesystem before transfer is complete (scp has not received everything/flushed write buffers before mv). Then it is possible mv might copy the file only partially.

^{[note]: if scp tranfer was interrupted, obviously it could not be resumed using the original path if the file was moved.}

share|improve this answer

edited 4 hours ago

answered 4 hours ago

sebasth

6,28821643

Yes, assuming the target where the file is moved to is on same file system moving the file will only update directory entries. Moving a file won't alter the file descriptor which scp uses to access the file on B ^[note].

On different filesystems mv has to copy the file first, and then unlink the file at old location. The only situation you could see corruption is if you move to different filesystem before transfer is complete (scp has not received everything/flushed write buffers before mv). Then it is possible mv might copy the file only partially.

^{[note]: if scp tranfer was interrupted, obviously it could not be resumed using the original path if the file was moved.}

share|improve this answer

edited 4 hours ago

answered 4 hours ago

sebasth

6,28821643

share|improve this answer

share|improve this answer

edited 4 hours ago

edited 4 hours ago

edited 4 hours ago

answered 4 hours ago

sebasth

6,28821643

answered 4 hours ago

sebasth

6,28821643

answered 4 hours ago

sebasth

6,28821643

6,28821643

add a comment | 

add a comment | 

 

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