After making a full forensic copy of a harddrive using dd, I would like to keep up with changes between the original and backup harddisc, therefore I started using rsync.
Whenever, I run
sync -a -v -n --progress /media/drive1 /media/drive2
the command would start listing all files contained in drive1. However, only a couple of them has changed after I did DD.
Trying that on a single folder
sync -a -v -n --progress /media/drive1/folder /media/drive2
works fine and just displays the new files in that folder - those which are not contained in /media/drive2/folder.
However, executing the command on the level of both volumes
sync -a -v -n --progress /media/drive1 /media/drive2
does not account for the differentials, contrary to the documentation which is everywhere available, but takes all files which are already on both drives.
What is my mistake?
The way rsync treats its source and destination paths is easy to get wrong. When you use the command:
sync -a -v -n --progress /media/drive1 /media/drive2
...it tries to sync the drive1 folder into drive2; that is, it creates and populates /media/drive2/drive1. When you add "/folder" to the source path, it works as expected because then it's trying to sync with /media/drive2/folder, which is what you want.
Fortunately, the solution is easy: add "/" to the end of the source path, which tells it to sync the contents of drive1 into drive2, rather than the folder itself:
sync -a -v -n --progress /media/drive1/ /media/drive2
BTW, I'd recommend adding --dry-run to make sure it's doing what you want before running it "for real". You'll probably also have to delete /media/drive2/drive1.
Accurev CLI documentation does not mention any command to move workspace from one stream to another without the need of creating a new workspace.
Look in manual at the "accurev chws" command
Try running this command:
accurev chws -w "workspace name" -b "name of new backing stream"
Once complete, you will need to update your workspace:
accurev update
I have a Arduino Yun and want setup the server for Yun.
So what I want is to copy a folder that contain a py file and a index.html to my Yun
I used mac terminal to do this operation
the command looks like this
scp -r /Users/gudi/Desktop/LobsterHeartRate root#192.168.240.1:/mnt/sda1
and then terminal asked for the password
after I typed, it shows
scp: /mnt/sda1/LobsterHeartRate: Not a directory
I didn't type /mnt/sda1/LobsterHeartRate why it shows this error
Your code
scp -r /Users/gudi/Desktop/LobsterHeartRate root#192.168.240.1:/mnt/sda1
requires that the remote directory /mnt/sda1 exists. This looks like it is not true in your case. Check it using ssh root#192.168.240.1 ls /mnt/sda1.
scp is simple tool and it does not allow you to rename directories on the fly and the target directory must exists. You might try
scp -r /Users/gudi/Desktop/LobsterHeartRate root#192.168.240.1:/mnt/
ssh root#192.168.240.1 mv /mnt/LobsterHeartRate /mnt/sda1
or so, if it will suit your needs. But copying more files, rsync is usually more suitable. Check its manual page and give it a try next time.
As #Jens Höpken notes, your post is a bit sparse. But trying to read between the lines of your post I suspect that LobsterHeartRate is a DIRECTORY on your local system but a FILE named LobsterHeartRate in your target system. This might be happening right at the top of the directory tree, or perhaps you have directories/files of the same name further down the tree. scp -rv might help resolve any confusions here.
Beware: scp -r resolves symbolic links. If you want to preserve symlinks you need to do something else. For historic reasons I use the following, though cpio with a find front-end opens up interesting possibilities for fine-grained file selections.
( cd /Users/gudi/Desktop && tar -cf - LobsterHeartRate ) |
ssh root#192.168.240.1 'cd /mnt/sda1 && tar -xf -'
For a safe "dry run" you could change the -xf to a -tf. The && chains are required to prevent bad things from happening if any prior command fails.
Disclaimer: any debugging is left as an exercise for the student.
I can use accurev wip command to find the element changed in other workspaces.
How can I know in Accurev CLI (or GUI) that the element is modified on other streams, not workspaces?
You will need to create a script to obtain this info.
Basically you will run the command:
accurev show -p -fxg -s "Stream Name" -R streams
You will parse this list looking for "hasDefaultGroup="true"".
For each stream that matches, execute the 'accurev stat -d -s' command.
I have recently downloaded GitHub and created a repository on it. I am trying to upload an Objective C project in it. How do I go about doing this?
I didn't find the above answers sufficiently explicit, and it took me some time to figure it out for myself. The most useful page I found was:
http://www.lockergnome.com/web/2011/12/13/how-to-use-github-to-contribute-to-open-source-projects/
I'm on a Unix box, using the command line. I expect this will all work on a Mac command line. (Mac or Window GUI looks to be available at desktop.github.com but I haven't tested this, and don't know how transferable this will be to the GUI.)
Step 1: Create a Github account
Step 2: Create a new repository, typically with a README and LICENCE file created in the process.
Step 3: Install "git" software.
(Links in answers above and online help at github should suffice to do these steps, so I don't provide detailed instructions.)
Step 4: Tell git who you are:
git config --global user.name "<NAME>"
git config --global user.email "<email>"
I think the e-mail must be one of the addresses you have associated with the github account. I used the same name as I used in github, but I think (not sure) that this is not required. Optionally you can add caching of credentials, so you don't need to type in your github account name and password so often. https://help.github.com/articles/caching-your-github-password-in-git/
Create and navigate to some top level working directory:
mkdir <working>
cd <working>
Import the nearly empty repository from github:
git clone https://github.com/<user>/<repository>
This might ask for credentials (if github repository is not 'public'.)
Move to directory, and see what we've done:
cd <repository>
ls -a
git remote -v
(The 'ls' and 'git remote' commands are optional, they just show you stuff)
Copy the 10000 files and millions of lines of code that you want to put in the repository:
cp -R <path>/src .
git status -s
(assuming everything you want is under a directory named "src".) (The second command again is optional and just shows you stuff)
Add all the files you just copied to git, and optionally admire the the results:
git add src
git status -s
Commit all the changes:
git commit -m "<commit comment>"
Push the changes
git push origin master
"Origin" is an alias for your github repository which was automatically set up by the "git clone" command. "master" is the branch you are pushing to. Go look at github in your browser and you should see all the files have been added.
Optionally remove the directory you did all this in, to reclaim disk space:
cd ..
rm -r <working>
Well, there really is a lot to this. I'm assuming you have an account on http://github.com/. If not, go get one.
After that, you really can just follow their guide, its very simple and easy and the explanation is much more clear than mine: http://help.github.com/ >> http://help.github.com/mac-set-up-git/
To answer your specific question: You upload files to github through the git push command after you have added your files you needed through git add 'files' and commmited them git commit -m "my commit messsage"
You need to create a git repo locally, add your project files to that repo, commit them to the local repo, and then sync that repo to your repo on github. You can find good instructions on how to do the latter bit on github, and the former should be easy to do with the software you've downloaded.
To upload files to your repo without using the command-line, simply type this after your repository name in the browser:
https://github.com/yourname/yourrepositoryname/upload/master
and then drag and drop your files.(provided you are on github and the repository has been created beforehand)
Here are the steps (in-short), since I don't know what exactly you have done:
1. Download and install Git on your system: http://git-scm.com/downloads
2. Using the Git Bash (a command prompt for Git) or your system's native command prompt, set up a local git repository.
3. Use the same console to checkout, commit, push, etc. the files on the Git.
Hope this helps to those who come searching here.
if you're on windows:
http://windows.github.com/
otherwise:
http://git-scm.com/downloads/guis
If you want to upload a folder or a file to Github
1- Create a repository on the Github
2- make: git remote add origin "Your Link" as it is described on the Github
3- Then use git push -u origin master.
4- You have to enter your username and Password.
5- After the authentication, the transfer will start