Read and write to binary files in C?

Does anyone have an example of code that can write to a binary file. And also code that can read a binary file and output to screen. Looking at examples I can write to a file ok But when I try to read from a file it is not outputting correctly.

Yum fails with – There are no enabled repos.

ok, so my problem was that I tried to install the package with yum which is the primary tool for getting, installing, deleting, querying, and managing Red Hat Enterprise Linux RPM software packages from official Red Hat software repositories, as well as other third-party repositories. But I’m using ubuntu and The usual way to install … Read more

How do I find the MySQL my.cnf location

There is no internal MySQL command to trace this, it’s a little too abstract. The file might be in 5 (or more?) locations, and they would all be valid because they load cascading. /etc/my.cnf /etc/mysql/my.cnf $MYSQL_HOME/my.cnf [datadir]/my.cnf ~/.my.cnf Those are the default locations MySQL looks at. If it finds more than one, it will load … Read more

Post request with Wget?

Wget currently doesn’t not support “multipart/form-data” data. –post-file is not for transmitting files as form attachments, it expects data with the form: key=value&otherkey=example. It is actually possible to post other formats (json) if you send the corresponding header. –post-data and –post-file work the same way: the only difference is that –post-data allows you to specify … Read more

Can you Run Xcode in Linux?

The low-level toolchain for Xcode (the gcc compiler family, the gdb debugger, etc.) is all open source and common to Unix and Linux platforms. But the IDE–the editor, project management, indexing, navigation, build system, graphical debugger, visual data modeling, SCM system, refactoring, project snapshots, etc.–is a Mac OS X Cocoa application, and is not portable.

Command to change the default home directory of a user

Ibrahim’s comment on the other answer is the correct way to alter an existing user’s home directory. Change the user’s home directory: usermod is the command to edit an existing user.-d (abbreviation for –home) will change the user’s home directory. Change the user’s home directory + Move the contents of the user’s current directory: -m (abbreviation for –move-home) will move … Read more

Running a Python script from PHP

Tested on Ubuntu Server 10.04. I hope it helps you also on Arch Linux. In PHP use shell_exec function: Execute command via shell and return the complete output as a string. It returns the output from the executed command or NULL if an error occurred or the command produces no output. Into Python file test.py, verify this … Read more

expected identifier before string constant

You can not initialize tst_ where you declare it. This can only be done for static const primitive types. Instead you will need to have a constructor for class test1. EDIT: below, you will see a working example I did in ideone.com. Note a few changes I did. First, it is better to have the … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)