I have an executable for both Linux and Windows with three dlls/shared libraries, and I’m using boost.log for logging. I wish to have a separate, file log for each module. My approach was to create a severity_channel_logger_mt for each module, constructed in a singleton for each module with the channel …
Tag: linux
SED not working [unterminated `s’ command]
i am trying to replace content of file using sed by following commands but it is giving Answer You’re missing a separator (which is ~ in your case). It looks like you are trying to put it on the end of $searchString, which is strange. I don’t know why you’re doing that. The reason it doesn&#…
linux: how grep work
I am using grep for some time,but there is some question when I use grep. when I use ‘grep’ to search some string on nginx error log,I try two ways: one: for this,there is nothing find two: for this, there can find lines that contain 404 in error.log in my example, ‘404.*’ is the patte…
Application running as root, creating logs that should be readable by anyone
I have this problem and would like to see the best practices in the industry. I am writing a software that uses an open source logging library. One of the features of this library is the ability to create rotating log files. For example, if the max log size is 2GB, then when limit is reached, a new file is
Read line output in a shell script
I want to run a program (when executed it produces logdata) out of a shell script and write the output into a text file. I failed to do so :/ $prog is the executed prog -> socat /dev/ttyUSB0,b9600 STDOUT $log/$FILE is just path to a .txt file I had a Perl script to do this: I tried to do this
error installing ruby 1.9.3 on linux server
Hey I’m just to update ruby on a linux server I ssh into. I know there a lot of threads on this but most are for installing on mac osx (which i dont have an issue with). This is the error log thats outputted: this is the content of the make.log per a commenter’s request: Answer I think your issue
Is shared standard C library first initialized by kernel?
I’m trying to understand the operation of linker and loader, and memory addresses(physical or virtual) regarding how a program is actually compiled and executed. I encountered two pieces of information and formed my own version of comprehension. 1st information: W.5.1 SHARED OBJECTS In a typical system,…
why doesn’t watch work when piping the output of fortune into cowsay
cowsay is a silly linux tool for displaying a cow saying given text in the terminal. fortune is a silly linux too for displaying a “random” quote in the terminal. Both of these commands can be repeatedly ran in the terminal using watch e.g. Additionally these two commands can be combined so the co…
linux – How do I capture all of my compiler’s output to a file as well as need to display output
The below program redirects all my output to log file. I need to display all the output along with log file. How can this be achieved? Answer You could use tee:
How to start a VM though Vagrant
I have never used Vagrant before. Now, Im investigating to use it for my project. Here is my problem so need some help from every one. Currently , I have a CentOS guest that has been installed via Virtual Machine in MAC host. Im going to install Vagrant into MACbook then I want to use Vagrant command line for…