I often use to debug Scrapy project. However, when there are lot of items crawled, those log information will be embedded inside a lot of non-useful information. What I want is to store the screen output into a file, so that I can do search, do text editing, etc. I tried: but it doesn’t work Answer It s…
Tag: linux
Replacement for MS vsprintf_s on Linux?
I’m converting C++ code from Windows to work under Linux and I came across this function “vsprintf_s”. It is a Microsoft specific function so I would like to ask if there is a replacement in Linux? Thanks Answer Looks like vsnprintf() would be a suitable replacement according to linux.die.ne…
Git whitespace/line ending
I’m going to give you a simplified version of what happen and where I am right now. I have tried different solution but I’m not even sure where does my problem come from. I made some modification on my branch B which is a fork of the branch A of an upstream repository. Then I tried to Pull Request…
deploy wso2esb in docker container with kubernetes
can someone help with how to deploy wso2esb in docker container with kubernetes? currently im running only one node/master at local machine with ubuntu server 14.04 LTS if im running with this it instantly trigger the service inside the container but if im running with this the container just run, without tri…
How can I run command line FFMPEG and accept multiple pipes (video and audio) without blocking on the first input?
I’m trying to mux h264 and aac created with MediaCodec using FFMPEG, and also use FFMPEG’s RTMP support to send to youtube. I’ve created two pipes, and am writing from java (android) through WriteableByteChannels. I can send to one pipe just fine (accepting null audio) like this: YouTube str…
How to put an executable script on the background and wake it up after x minutes
I’m developing a timer in bash and this is what I’ve come up with so far: It works like I was expecting except that I have to wait the X minutes I passed as input to get the prompt back. Any ideas how I can execute this and have it execute it in the background so I can keep working
I have an Arduino Yun and when i use putty (SSH) to execute mkdir command it shows “can’t create directory: No such file or directory”
The web page related to this is Link I connected Yun with my laptop and use root to run the putty I’m trying to use mkdir but it shows need help on this I tried to creat a folder in the SD card named “python-packages” but it didn’t work Answer Sounds like one of those directories doesn…
Commands terminated with the same char
How can I fix the follow line: The problem is that the commands of for and -exec end with a semicolon, the for command has this statement and find statment with -exec Answer You don’t even need to use -exec echo {} since that is default action in find. You can use this for loop: There is no need to
Matlab text on Linux with Intel graphics
On my laptop with an Intel HD 5500 graphics card, if I run Matlab (locally or on a remote machine) some text in menus and inside figures is unreadable. This is what the Edit menu of an empty figure looks like: The lines that are unreadable seem randomly chosen but they’re not: in every new figure, it…
pass commands server using perl openssh
there are 2 systems, client system, in which i am passing commands to the server by doing openssh to the server and my script goes like this and in server /p/inway/bin/inway71 is a scripts: so when i login to my server and run this script in my terminal, i will be directed to some path (i have no clue what