cschol - Developer IT

grep on Windows XP vs. Windows 7

- by cschol

I am using grep from Gnuwin32 on Windows. On Windows XP, the following grep -e "foo" NUL results in the following output grep: NUL: invalid argument On Windows 7, the same arguments result in no output at all. Why is the output different between Windows XP and Windows 7?

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7zip: Add files to new folder in archive via command line?

- by cschol

I am using 7zip for compressing a bunch of files. The files are in a directory structure, like this: MyDir\File1 MyDir\File2 MyDir\File3 MyDir\MoreFiles\File4 MyDir\MoreFiles\File5 I want to create a 7z file with the following structure via command line: ZippedDir\File1 ZippedDir\File2 ZippedDir\File3 ZippedDir\MoreFiles\File4 ZippedDir\MoreFiles\File5 Basically, I want to zip the content of MyDir\ into a new folder called ZippedDir\. I know I could copy the content into a directory called ZippedDir\ and then zip this new directory. However, I was wondering if there was a way to avoid this extra copy step and directly zip the content, if possible, via command line.

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makefile: execute one target from another target plus additional commands

- by cschol

I have a makefile with something like the following targets: install: do a whole bunch of stuff to build and install dist: install cp README.txt $(INSTALL_DIR) zip $(INSTALL_DIR) I am trying to not repeat the commands from target install and make dist execute install first before executing its own commands. Calling make dist does indeed execute all commands from target install but then just stops and it does not execute its own commands, e.g. the cp. Am I missing something?

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Accessing StackExchange API from Emacs

- by cschol

I am trying to access the StackExchange API from Emacs' elisp: (require 'url) (require 'json) (defvar url-http-end-of-headers) (defun read-json () (interactive) (with-current-buffer (url-retrieve-synchronously "http://api.stackoverflow.com/0.8/users/2386") (goto-char url-http-end-of-headers) (json-read))) M-x read-json results in the following error: JSON readtable error. Am I missing anything?

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Check if Rhythmbox is running via Python

- by cschol

I am trying to extract information from Rhythmbox via dbus, but I only want to do so, if Rhythmbox is running. Is there a way to check if Rhythmbox is running via Python without starting it if it is not running? Whenever I invoke the dbus code like this: bus = dbus.Bus() obj = bus.get_object("org.gnome.Rhythmbox", "/org/gnome/Rhythmbox/Shell") iface = dbus.Interface(obj, "org.gnome.Rhythmbox.Shell) and Rhythmbox is not running, it then starts it. Can I check via dbus if Rhythmbox is running without actually starting it? Or is there any other way, other than parsing the list of currently running processes, to do so?

Developer IT