Unicode and C

It is a common practice in C to use arrays of char as strings. The 0 is used as end marker. The whole thing was created like that in the 1970s and at that time it was kind of cool to get away with one less language feature and to express it in terms of […]

Share Button

LF and CR LF in git and svn

Typically we observe that line endings of text file turn out to be „linefeed“ (LF or „\n“ or 0x0a or Ctrl-J) on Linux and Unix-like systems (including MacOSX), while they are „carriage return and linefeed“ (CR LF or „\r\n“ or 0x0d 0x0a or Ctrl-M Ctrl-J) on MS-Windows. See the little obstacles of interoperability. This can […]

Share Button

The little obstacles of interoperability

Deutsch A lot of things in today’s IT landscape have been unified and interoperability is much better than 20 years ago. Some examples: Networking: Today networking is TCP/IP. Even the physical cables with RJ45/Ethernet and the wireless networks have been standardized and all kinds of devices can use the same networks. In the old days […]

Share Button

Shell Scripts

Shell scripts can be useful for writing small stuff like combining a few commands to pipes or doing a bit of „back ticking“. Even simple loops and if-conditions are possible. And if we want, it is almost a full programming language. A bit hard to tame, maybe, but quite a lot of stuff is possible. […]

Share Button

tmp-directories

On all computers we have some concept of a tmp-directory. Typically it is /tmp on Linux- and Unix-systems and something like C:/TEMP plus some subdirectory in each users home directory on MS-Windows. In terms of software development this tends to be some dark area. Programs like to create some files there, store some stuff there […]

Share Button

MS-Windows-Encodings with CMD: Bug or Feature?

Deutsch Whoever is working with MS-Windows, should know these black windows with CMD running in them, even though they are not really popular. The Unix and Linux guys hate them, because they are really primitive compared to their shells. Windows guys like to work graphically. Or they prefer powershell or bash with cygwin. Linux and […]

Share Button