Formatting code shortcuts in Eclipse
Formatting code shortcuts in Eclipse.
Shortcut: Ctrl + Shift + F
No need to select the code.
Formatting code shortcuts in Eclipse.
Shortcut: Ctrl + Shift + F
No need to select the code.
I upload files using the aws cli http://www.systutorials.com/239665/uploading-large-files-amazon-s3-aws-cli/ . But how to get the metadata of an object in AWS S3? You can use the s3api‘s head-object command to get the metadata of an object. Taking one example: $ aws s3api head-object –bucket test-hkust –key dir2/fileupload/fb0c6353-a90c-4522-9355-7cd16cf756ff.file.txt It will print results like { “AcceptRanges”: “bytes”, “ContentType”:…
For your first push with git, you may get following errors when you use github or bitbucket. $ git push No refs in common and none specified; doing nothing. Perhaps you should specify a branch such as ‘master’. fatal: The remote end hung up unexpectedly Everything up-to-date Just run following command to set your remote…
We may drop the file system caches on Linux to free up memory for applications. Kernels 2.6.16 and newer provide a mechanism via the /proc/ to make the kernel drop the page cache and/or inode and dentry caches on command. We can use this mechanism to free up the memory. However, this is a non-destructive…
How to set up Firefox Sync? The online Firefox help provides a very good tutorial on setting up Firefox sync across computers and other devides: http://support.mozilla.org/en-US/kb/how-do-i-set-up-firefox-sync Read more: Firefox: how to sync bookmarks saved on iOS devices to Firefox on PC? Is Firefox Sync safe, that is, could someone else read my password saved in…
How to convert PDF to text with format kept on Linux? Many of the formatting in PDF will not be available in text. But better keep the text’s relative positions as the same. For example, the table columns should be kept. The pdftotext tool can convert PDF to text pretty well: pdftotext – Portable Document…
In this post, we will discuss Resource Acquisition Is Initialization (RAII), a programming idiom in C++ that helps manage resources such as memory, file handles, and network connections. By leveraging constructors, destructors, and scope-bound resource management, RAII enables the creation of more reliable and maintainable C++ code. RAII can not only achieve mostly what a…