So, you have files you need to manage on servers. Maybe you’re a developer. Maybe you’re a system administrator. Maybe you’re a contractor or freelancer. But you need to connect to a thing, and upload, download, or tweak the files on that thing.

That’s what Transmit is for.

Transmit’s big strength is its clean interface — our famous “dual-pane” view is way faster than the Finder. But Transmit also has tons of very nice features like File Sync, which can mirror remote and local (or, now, local and local!) files in one click.

When you run sudo su, any files you create will be owned by root, but it is not possible by default to directly log in as root with ssh or scp. It is also not possible to use sudo with scp, so the files are not usable. Fix this by claiming ownership over your files: Assuming your user name was dimitri, you could use this command.

Mar 02, 2020 We can append to a file with sudo: cat myfile.txt sudo tee -a existingfile.txt /dev/null. It is a good idea to redirect tee output to /dev/null when appending text. In other words, use /dev/null when you don’t want tee command to write to the standard output such as screen. 1)How to give sudo access for particular directory like the user who is having sudo can modify / delete / create new files / sub-directory with in given directory. 2)How to give modify (edit) permission through sudo for particular file. 3)How to give sudo access for star and stop the service.

Transmit also takes great care to let you organize your Servers for fast access. And with Panic Sync, you can sync them to all of your computers. Never type a server address again.

Now, long ago we’d call Transmit an “FTP client”, but today, with Transmit 5, we connect to lots of different server types and cloud services. For example, Amazon S3 dramatically changed the way files are served on the internet, and Transmit is a great way to manage your Amazon S3 buckets.

Mac Transmit App Use Sudo To Access File Windows 10

Put simply: Transmit lets you quickly and easily manage files on the internet.

Terminal

Hey

This little trick I came across while I wondered why my hard disk was being used when no apps were actively running. Its a basic Terminal command that shows you which files are being accessed and by which program. Its very useful and customisable, and interesting to watch to see how you Mac uses the files stored on your hard disk. You can use it when a file is in use or an app is accessing your disk. The resulting output is great for determining if you have a rogue app accessing files it shouldn’t or if an app is heavy on file access, something which can slow your Mac down.

The Terminal Command

The Terminal command we are going to use is opensnoop. Although there are plenty of different commands out there that can probably do the same thing, this is one that is built into your Mac and is pretty easy to use. To access it open Terminal found in Applications > Utilities and type the following:

sudo opensnoop

You have to use sudo since the command will access system files which need administrator privileges.

Opensnoop showing in red the user (UID), the app accessing the file in green and the file location in blue.

When you run the command the text will probably wizz by. You can always stop the command my pressing Control + C

Customising The Command

The command on its own is interesting, but outputs too much information all at once to be meaningful. We need to customise it using the built in in options. The first is to add a date, this makes working out the access time later easier. This is accomplished using the command:

sudo opensnoop -v

We can narrow down the search to an app by using the following command:

opensnoop -n Finder

Either type in the app name as it appears within opensnoop or the PID, which can be found using Activity Monitor.

If you want to see when a file gets accessed and by the program responsible you can write the following:

sudo opensnoop -f /path/to/file

Mac Transmit App Use Sudo To Access File Online

You can always drag and drop the file into the Terminal window instead of typing /path/to/file.

If you want to save the output you can always use the following command

sudo opensnoop > /saved/file/path/text.txt

This will create a new file and write the output to the file. When you close Terminal it will complete the file. If you want to add to the end of a file, because you have used the text file before, use double arrows (>>)

User Identifier / UID

One of the features of opensnoop is the UID or Unique Identifier. It defines which person whether it be yourself or user built into your Mac such as admin, is using a file. For example if I open a file and opensnoop captures it (which it does) it will list a UID or 501. This basically tells me that I have open the file. However you will soon notice that other UID’s are using files, these are responsible for your background tasks.

To find a UID and associate it with a physical user we have two options you can use. In Terminal type the following:

Mac transmit app use sudo to access file online

id

This will give you a short list correlating UID’s to names. In this list the user 501, is reported as James.

If a UID doesn’t appear in this list, you can use a more expansive system list. In Terminal again type the following:

open /etc/passwd

TextEdit will open a file with lots of UID’s. Do not change anything in this file. You will however notice a name and a number associated with it. For example in the image above there is a UID of 89. In my passwd file this is linked to spotlight. I then know that spotlight was accessing a file to do what ever it has to do. You can do this will all of the users that appear. When you have finished with the passwd file, close TextEdit.

Its worth noteing at this point that FD stands for File Descriptor. You can read up on it at Wikipedia.

Conclusion

This command isn’t that complicated but pretty powerful. If you want to find more customisable options you can use the man page accessible by typing in the following:

man opensnoop

Mac Transmit App Use Sudo To Access Files

If have used this command to see which files an app access and which files are locked by programs. Useful if you want to restart or clear the trash and Finder says a file is in use.

If you have any tips in using this Terminal command, please leave a comment below.

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