diff

问题 I have three directories. I would like to compare directory1 with directory2, then take those changes/new files and copy them over to directory3. Is there an easy way to do this, maybe by using linux diff and cp commands? I'm open to ideas. Thanks! Andrew 回答1: I believe this is what you want from your description. for file in dir2/*; do file_in_dir1=dir1/$(basename ${file}) if [ ! -e ${file_in_dir1} ]; then # If the file in dir2 does not exist in dir1, copy cp ${file} dir3 elif ! diff ${file}

问题 I was wondering, how do I return files added/modified/deleted for a commit in such a format: <modifier> file <modifier> path/to/a/file <modifier> path/to/another/file In git I do this: "git show --pretty="format:" --name-status commitish" and get: D file A path/to/a/file M path/to/another/file For mercurial I can't figure out how to do it with templates. I have a style file: changeset = "{file_mods}{file_adds}{file_dels}" file_add = "A {file_add}\n" file_mod = "M {file_mod}\n" file_del = "D

问题 I downloaded TKDiff from http://tkdiff.sourceforge.net I would like to use it from the terminal like i'm using the regular diff. something like: tkdiff file1.txt file2.txt can anybody help me with that? thanks! 回答1: Use the homebrew version. First install brew (http://brew.sh), then brew install tkdiff then it should just work 来源： https://stackoverflow.com/questions/16318592/how-to-run-tkdiff-from-the-terminal-on-mac-os

问题 When I use 'svn diff' from the command line, it prints out the lines that have changed but also the 3 unchanged lines before and after for context. I much prefer seeing only the changed lines with no context. I haven't been able to determine any command line options that will let me make it behave this way. Standard 'diff' and 'cvs diff' do what I want by default. Surely 'svn diff' can do this but I'm missing something. Anyone know how? 回答1: After looking into the useful link given above by

问题 I am working on doing a diff between tables in postgresql, it takes a long time, as each table is ~13GB... My current query is: SELECT * FROM tableA EXCEPT SELECT * FROM tableB; and SELECT * FROM tableB EXCEPT SELECT * FROM tableA; When I do a diff on the two (unindexed) tables it takes 1:40 hours (1 hour and 40 minutes) In order to get both the new and removed rows I need to run the query twice, bringing the total time to 3:30 hours. I ran the Postgresql EXPLAIN query on it to see what it

问题 I have a file with name foo.txt . This file contains some text. I want to achieve following functionality: I launch program write something to the file (for example add one row: new string in foo.txt ) I want to get ONLY NEW content of this file. Can you clarify the best solution of this problem? Also I want resolve related issues: in case if I modify foo.txt I want to see diff. The closest tool which I found in Java is WatchService but if I understood right this tool can only detect type of

问题 I have a specific problem; I have data in the following format: # USER_ID SUBMISSION_DATE CONTRACT_REF 1 1 20/6 1:00 W001 2 1 20/6 2:00 W002 3 1 20/6 3:30 W003 4 4 20/6 4:00 W004 5 5 20/6 5:00 W005 6 5 20/6 6:00 W006 7 7 20/6 7:00 W007 8 7 20/6 8:00 W008 9 7 20/6 9:00 W009 10 7 20/6 10:00 W0010 Now I need to somehow calculate the time difference between the different submissions (uniquely identifiable). In other words: I have a table of submissions , in this table, there are all submissions

问题 I don't know if git has concept of revision. I'd like to diff current working copy with older version of it(not neccesarily a last commit) Would be great if it could be done inside emacs. 回答1: I've no idea about doing this inside emacs, but: git diff rev1..rev2 will do what you want for the whole repository. You can then add to that: git diff rev1>..rev2 path path can be an absolute path to a file, or a path to a directory, so you can diff subtrees. If you're looking to diff the working copy

问题 Updated Consider file abc, identical in both commits A and B begin 123 456 789 klm end In A, we refactor first line 123 => AAA and pick B on top of the result. Git tells that all lines in the file have changed . Its diff will operate normally however, if we modify B by updating any single line. Git will notice that only this one line of text has changed in this case, reporting a single-line conflict if it was the first line also. Here is the code to reproduce mkdir full-shit ; cd full-shit

问题 I'm currently writing a diff-algorithm to detect inserts, deletes, updates and moves between two revisions of a tree whereas each node has a unique ID which doesn't change through the revisions. I'm going to traverse each tree in preorder and generate diffs between two nodes on the fly and move the cursors accordingly (for instance after a deleted node is encountered only the cursor on the old revision is moved forward and vice versa for inserted nodes). Now my problem is that I have to