Shell overwrite file

I am using Cygwin and vi editor. I open the script and I need to update the contents of a file that exists in several hundred folders. I'm on a mac. Unable to overwrite but can delete file. This command fails with the following error: The file access permissions do not allow the specified action. Overwrite a running shell script.

Hello all, This might be a dumb question I have a shell script that is currently in running state. It has big sql's in it and will run for few days.

What happens if I change the shell now? Eg: a. Restrict file overwrite through FTP. How can I restrict a user from overwriting a file once he has uploaded it through FTP. He can view the file but can't delete or overwrite it.

Thanks Imran Aziz Khan Hi all, I am trying to overwrite some lines of a very big file. I know the number of the line but I don't know how to point the cursor on its beginning.

RedHat Commands. AzCopy is a command-line utility that you can use to copy blobs or files to or from a storage account.

Find out more about how to Get started with AzCopy. The example below copies the bannerphoto. Both containers exist within the same storage account. The result verifies the success of the copy operation.

You can use the -Force parameter to overwrite an existing blob with the same name at the destination. This operation effectively replaces the destination blob. It also removes any uncommitted blocks and overwrites the destination blob's metadata.

The source blob for a copy operation may be a block blob, an append blob, a page blob, or a snapshot. If the destination blob already exists, it must be of the same blob type as the source blob. An existing destination blob will be overwritten.

The destination blob can't be modified while a copy operation is in progress. A destination blob can only have one outstanding copy operation. In other words, a blob can't be the destination for multiple pending copy operations.

When you copy a blob within the same storage account, it's a synchronous operation. When you copy across accounts it's an asynchronous operation. The entire source blob or file is always copied.

Copying a range of bytes or set of blocks is not supported. When a blob is copied, it's system properties are copied to the destination blob with the same values.

A snapshot is a read-only version of a blob that's taken at a point in time. A snapshot of a blob is identical to its base blob, except that the blob URI has a DateTime value appended to the blob URI to indicate the time at which the snapshot was taken. The only distinction between the base blob and the snapshot is the appended DateTime value. Any leases associated with the base blob do not affect the snapshot.

You cannot acquire a lease on a snapshot. Read more about Blob snapshots. The following sample code retrieves a blob from a storage container and creates a snapshot of it. When you change a blob's tier, you move the blob and all of its data to the target tier. SetAccessTier method. This can be used to change the tier between Hot , Cool , and Archive.

Changing tiers from Cool or Hot to Archive take place almost immediately. After a blob is moved to the Archive tier, it's considered to be offline and can't be read or modified.

Before you can read or modify an archived blob's data, you'll need to rehydrate it to an online tier. Read more about Blob rehydration from the Archive tier. The following sample code sets the tier to Hot for all blobs within the archive container. Blob index tags makes data management and discovery easier. Blob index tags are user-defined key-value index attributes that you can apply to your blobs.

Once configured, you can categorize and find objects within an individual container or across all containers. Blob resources can be dynamically categorized by updating their index tags without requiring a change in container organization. This offers a flexible way to cope with changing data requirements. You can use both metadata and index tags simultaneously. Collectives on Stack Overflow.

Learn more. How do I overwrite a file using PowerShell? Ask Question. Asked 1 year, 5 months ago. Active 1 year, 5 months ago.

Viewed 3k times. When asking a question about a specific command you should be sure to include the result — especially any error messages — of running that command. However, I can already see you're missing the -Force parameter. Add a comment. Some environments disallow with something like -bash: TheAccount.

See answer by BrDaHa. It works on Ubuntu Semi-related question to this, but what's the best way to pick up all these little nuances about bash?

I never knew about this answer but it's hugely helpful. I'm finding it hard to figure out a middle ground between "just absorb the bash reference manual cover to cover" and "googling every problem on Stackoverflow.

This answer doesn't directly answer the question. As Jake noted, BrDaHa answer answers it. TuBui not sure why it's not working for you. What shell and version are you using? Griddo my shell is bash version 4. My noclobber is set On. TuBui Apparently I wasn't testing correctly. It's not working for me either Show 2 more comments.