How do you find the difference between two files in UNIX?

How can I find the difference between two files in Linux?

Use the diff command to compare text files. It can compare single files or the contents of directories. When the diff command is run on regular files, and when it compares text files in different directories, the diff command tells which lines must be changed in the files so that they match.

How do I find the difference between two files in terminal?

You can use diff tool in linux to compare two files. You can use –changed-group-format and –unchanged-group-format options to filter required data. Following three options can use to select the relevant group for each option: ‘%<‘ get lines from FILE1.

How do I compare two sets of files?

Click on the “Select Files or Folders” tab in the far left, to start a new comparison. Each comparison you run opens in a new tab. To start a new comparison, click on the “Select Files or Folders” tab in the far left, change the targets and click “Compare” again.

What does 2 mean in Linux?

38. File descriptor 2 represents standard error. (other special file descriptors include 0 for standard input and 1 for standard output). 2> /dev/null means to redirect standard error to /dev/null . /dev/null is a special device that discards everything that is written to it.

How do I compare two files in Windows?

On the File menu, click Compare Files. In the Select First File dialog box, locate and then click a file name for the first file in the comparison, and then click Open. In the Select Second File dialog box, locate and then click a file name for the second file in the comparison, and then click Open.

What is WinDiff tool?

WinDiff is a graphical file comparison program published by Microsoft (from 1992)., and is distributed with Microsoft Windows Support Tools, certain versions of Microsoft Visual Studio and as source-code with the Platform SDK code samples.

What is the best file comparison tool?

File and Document Comparison Tools

  • Kaleidoscope. Kaleidoscope lets you compare text documents (including source code) and images. …
  • Workshare Compare. …
  • Docu-Proof Enterprise. …
  • ExamDiff. …
  • Diff Doc. …
  • Compare Suite. …
  • WinMerge. …
  • Araxis Merge.

What is the difference between a file and a folder?

A file is the common storage unit in a computer, and all programs and data are “written” into a file and “read” from a file. A folder holds one or more files, and a folder can be empty until it is filled. … Files are always stored in folders.

How do I compare two folders in Notepad ++?

Compare with Notepad ++ Diff

Launch the Notepad++ Plug-in. Go to the Compare option. Open the two files you wish to compare. For example, you may have two people working on a similar project and you want to compare the text line by line.

What does 2 mean in bash?

2 refers to the second file descriptor of the process, i.e. stderr . > means redirection. &1 means the target of the redirection should be the same location as the first file descriptor, i.e. stdout .

What does 2 >> mean?

&1 is used to reference the value of the file descriptor 1 (stdout). Now to the point 2>&1 means “Redirect the stderr to the same place we are redirecting the stdout”

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