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Symbols not found during linking

I have a problem with a shared library (Linux) and a program that links against this library but does not find the symbols – although they are there. That’s what I have: A shared library “libetest.so” that is located in /usr/lib. When I do an it gives (beside some others) this output: …

MySQL “Error Code: 1118. Row size too large (> 8126)”

I have two installs of MySQL. One is on my local Linux laptop and the other is on our Development Linux server. Both installs are the same version (mysql Ver 14.14 Distrib 5.6.23). When I run a create statement for a table on my local install it completes successfully. When I try to run that same create on th…

Linux Socket Bad File Descriptor

I couldn’t find a duplicate, so I decided to post. We’re getting into Sockets (beginner-level) now, and was given the code below to make the client send a simple message to the server by using send() and recv(). However, everything I have tried doesn’t seem to get rid of the error: Bad File Descriptor a…

concatenate ordered files using cat on Linux

I have files from 1 to n, which look like the following: Each file contains only one line. Now I want to concatenate them in the order from 1 to n. I tried cat sim.o500.* > out.dat. Sadly this does not work if e.g. n is larger than 9, because this concatenates then sim.o500.1 followed by sim.o500.10and not…

change date/time using python in linux

I tried using date command to change the system time in debian linux: os.system(“echo passwd | “sudo date -s “Thu Aug 9 21:31:26 UTC 2012”) and I set the python file permission to 777 and also chown as root. But it does not work and says date: cannot set date: Operation not permitted. …

What is a better way to read each line in a file in linux?

Hi all, I want to read each line in a file and then make a whole url to do some thing. The above scripts worked, but what is a better way to read file line by line? Thanks. Answer This is a nice example of the useless use of cat, simply use IO redirection: The use of -r in read