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Postgresql: password authentication failed for user “postgres”
I have installed PostgreSQL 8.4, Postgres client and Pgadmin 3. Authentication failed for user "postgres" for both console client and Pgadmin. I have typed user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times withou...
How do I get the 'clear' command in Cygwin?
I installed Cygwin, choosing a fairly minimal set of packages.
10 Answers
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How do you manage your gists on GitHub? [closed]
...rch my gist by tags via user:myusername #tag.
For offline usage, I cloned all my gists. And use find and grep to search them. I also search them with gonzui (open source code search engine).
I've written a shell script: gister.sh. I use it to
post gists. It will clone the repo to local and imp...
Making git auto-commit
I'd like to use git to record all the changes to a file.
18 Answers
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Submitting a form by pressing enter without a submit button
...want to get into JavaScript if possible since I want everything to work on all browsers (the only JS way I know is with events).
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How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
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This calls is_dir twice for each recursed directory. If the argument is a symlink, it also follows it instead of deleting the symlink, which might or might not be what you want. In any case, it's not what rm -rf does.
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How to install a specific JDK on Mac OS X?
I want to install a specific JDK (the latest for example). For this, I went to the JDK download homepage: http://java.sun.com/javase/downloads/index.jsp .
I looked for a Mac version, but I'm a bit surprised to only see downloadable versions for Linux, Windows and Solaris ...
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Unix command to find lines common in two files
... @ferdy (Repeating my comment from your answer, as yours is essentially a repeated answer posted as a comment) grep does some weird things you might not expect. Specifically, everything in 1.txt will be interpreted as a regular expression and not a plain string. Also, any blank line in 1.txt...
Force R not to use exponential notation (e.g. e+10)?
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This is a bit of a grey area. You need to recall that R will always invoke a print method, and these print methods listen to some options. Including 'scipen' -- a penalty for scientific display. From help(options):
‘scipen’: integer. A penalty to be applied wh...
List of tables, db schema, dump etc using the Python sqlite3 API
...te("SELECT name FROM sqlite_master WHERE type='table';")
print(cursor.fetchall())
Watch out for my other answer. There is a much faster way using pandas.
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