Super User
Super User

Questions tagged [comparison]

File comparison is the process of comparing the contents of files, finding their common contents and their differences, usually using an automated tool

File comparison is commonly used when merging source files, but is also used for generating differences between (and merging) binary data.

295 questions
117
votes
2 answers

What limits Windows 7 x64 machines to <=192GB RAM?

I know motherboards, BIOS, etc may set upper limits on how much RAM we can install or use on individual machines. However, what defines the maximum RAM for Windows 7 x64? Is that a fundamental architectural limitation of the OS? Different Windows…
Lucas Fortini
  • 1,013
69
votes
13 answers

Linux: Compare Directory Structure Without Comparing Files

What is the best and simplest way to compare two directory structures without actually comparing the data in files? This works fine: diff -qr dir1 dir2_ But it's really slow because it's comparing files too. Is there a switch for diff or another…
Jonah
  • 955
64
votes
2 answers

Comparing two strings in Excel?

I need to compare two strings in excel and determine if they are equal, the strings are in adjacent cells. For example, given: apple apple water water pear carrot apple water dog dog pear carrot Apple apple the formula on the…
Flethuseo
  • 999
63
votes
3 answers

Compare two video files to find out which has best quality

Suppose I have same video material encoded in two (or more) files. I'd like to run some utility on them which groundly pointed out which file is "best" in quality. "Groundly" means that I'd like to get report which compares different aspects (e.g.…
pfalcon
  • 1,022
59
votes
4 answers

vimdiff: Jump to next difference inside line?

vimdiff is very handy for comparing files. However, I often use it on files with long lines and relatively few differences inside the lines. vimdiff will correctly highlight differences inside a line (whole line pink, differing characters red). In…
sleske
  • 23,525
51
votes
8 answers

Is it possible to open a SQLite database from within Microsoft SQL Server Management Studio?

Is there a way to open a .db file (SQLite database file) from within Microsoft SQL Server Management Studio? Right now we have a process that will grab the data from a Microsoft SQL Server database and put it into a SQLite database file that will be…
Brian T Hannan
  • 1,131
40
votes
4 answers

Can software differentiate between a laptop and a desktop?

A license for CPU-intensive software like Pix4D says it can be installed on two devices - but with a condition. Reading the finer print, it seems that one device can be a full-processing workstation/desktop whereas the other must be a mobile…
Islay
  • 501
29
votes
6 answers

Which e-reader for O'Reilly books?

Most of my programming books are from O'Reilly. Several of them need to be updated, and I'm thinking of going for an e-reader this time. O'Reilly sell their e-books as a multi-format bundle (PDF, EPUB and Mobipocket (Kindle)). Has anyone done a…
Tim Pietzcker
  • 2,730
28
votes
1 answer

Kaleidoscope for git difftool

I tried using kaleidoscope for git difftool to compare two branches. So I installed ksdiff and setted it like follow in my .gitconfig [diff] tool = kaleidoscope [difftool "kaleidoscope"] cmd = ksdiff --changeset $(cd $(dirname "$LOCAL")…
svassr
  • 1,501
24
votes
4 answers

How to compare file timestamps in bash?

How do I compare the timestamp of two files? I tried this but it doesn't work: file1time=`stat -c %Y fil1.txt` file2time=`stat -c %Y file2.txt` if[$file1time -gt $file2time]; then doSomething fi I printed both the time stamps, in order and it…
newcoderintown
  • 349
  • 1
  • 2
  • 4
19
votes
6 answers

How to validate a DVD against an ISO

I have an ISO file and a DVD burned from that ISO file. Is there a way I can validate that the DVD contains the same as the ISO file and that nothing is wrong with the DVD? I have the tools available on the System Rescue CD.
Svish
  • 41,258
19
votes
6 answers

Subversion: How to compare differences between incoming changes?

I would like to see the changes that my co-workers have made before I accept the incoming changes. So I start by getting the status svn st -u ...which tells me that I've got an incoming change * 9803 incomingChanges.html M 9803 …
Andrew
  • 15,494
18
votes
2 answers

Is there any way to find similar files (not duplicates)?

My final goal is refactoring code written by my coworkers. So, is there a way to find files differing in only few words? (Edit: this is for a Mac, but others might like non-Mac answers too.)
tig
  • 4,803
15
votes
1 answer

What are the small details Windows and Linux users will trip on when using OSX for the first time?

Like any other Apple product, OS X prides itself on the little details. When, earlier last week, I used my professor's Mac briefly to give a quick project presentation (mine decided to do a chkdsk at the wrong time, heh), I got the distinct feeling…
badp
  • 3,797
14
votes
5 answers

What are the feature differences between Windows 7 Enterprise and Ultimate?

Are there any feature differences between Windows 7 Ultimate and Windows 7 Enterprise, or is the only difference licensing? Microsoft's Compare editions page doesn't list Enterprise, but their Windows 7 Enterprise features page seems to list the…
Jay Hofacker
  • 786
1
2 3
…
19 20