Git commands i was unaware of !

Git basics and continued...!

Add all the deleted files using 'git add -u'. This will add all the files in git including the deleted files.

If you only want to add deleted files, try:

git ls-files --deleted | xargs  
git commit

Once you clone a project, check out the branches present using,

git branch -a or git branch -r for remote branches.

See the contents of any object using git show

Check for the space occupied by object database to



git count-objects -v
git verify-pack -v .git/objects/pack/pack-*.idx
To check if connection to host is established.
ssh -vT git@github.com

Comments

Cannot allocate memory error while computing files - Setup Swap space

ActionView::Template::Error (Cannot allocate memory - nodejs /tmp/execjs20131021-26716-fckzo3.js 2>&1 Nodejs is used to compile javascript at runtime. In RoR applications, this error comes when server is started in production mode which compiles the assets or while running rake assets:precompile . check for swap space and allocate

Understanding TOP command and purpose

$top top - 12:24:34 up 9 days, 21:58, 0 users, load average: 5.98, 5.32, 4.30 Tasks: 13 total, 1 running, 12 sleeping, 0 stopped, 0 zombie %Cpu(s): 5.5 us, 1.5 sy, 0.0 ni, 92.6 id, 0.0 wa, 0.0 hi, 0.5 si, 0.0 st KiB Mem: 12969522+total, 11112360+used, 18571628 free, 135900 buffers KiB Swap: 0 total, 0 used, 0 free. 49328208 cached Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 40 root 20 0 1466540 912540 12568 S 7.7 0.7 67:03.03 bundle 43 root 20 0 1413152 860252 11116 S 6.7 0.7 65:41.24 bundle The load averages indicate the average number of processes waiting for CPU time over the specified time periods. Shows running processes and their status. Buffer is the amount of data used while it's being written or read. The numbers are in KiB's showing the RAM available on system us - user process sy - system process process ID (PID), user, priority (PR), virtual memory usage (VIRT), resident memory usage (RES), shared memory usage (SHR), CPU usage (%...

upload images to AWS::S3 in ruby using aws sdk gem

Using gem aws-sdk for a ROR application for uploading images to s3 Uploading images to a fixed bucket with different folders for each object or application. The s3 keeps a limitation on the number of buckets creation whereas there is no limitation for content inside a bucket. This code will upload image for a user to s3 using aws-sdk gem. The bucket and the image uploaded are made public, so that the images uploaded are directly accessible. The input is takes is the image complete path where it is present, folder in which it should be uploaded and user_id for whom it should be uploaded. def save_screenshot_to_s3(image_location, folder_name,user_id) service = AWS::S3.new(:access_key_id => ACCESS_KEY_ID, :secret_access_key => SECRET_ACCESS_KEY) bucket_name = "app-images" if(service.buckets.include?(bucket_name)) bucket = service.buckets[bucket_name] else bucket = service.buckets.create(bucket_name...

Learning curve: Work and Reflection

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