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Number of processors/cores in command line
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The most simplest tool comes with glibc and is called getconf:
$ getconf _NPROCESSORS_ONLN
4
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Wireshark localhost traffic capture [closed]
I wrote a simple server app in C which runs on localhost. How to capture localhost traffic using Wireshark?
9 Answers
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How to set environment variables in Jenkins?
...step and set "Properties File Path" to propsfile.
Note: This plugin is (mostly) not compatible with the Pipeline plugin.
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How to use sed to replace only the first occurrence in a file?
...the 0 with a 1, so: sed '1,/RE/s//to_that/' file
– mhost
Oct 5 '14 at 1:24
13
Could somebody plea...
Random number from a range in a Bash Script
...it on Ubuntu systems in the last couple years but not the current RHEL/CentOS.
– Cascabel
Mar 31 '10 at 20:37
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How should I print types like off_t and size_t?
...es use of it. Nevertheless, it's standardized (by the C99 standard). For those intmax_t and int8_t of stdint.h and so on, there are macros you can use, like another answer said:
printf("value: %" PRId32, some_int32_t);
printf("value: %" PRIu16, some_uint16_t);
They are listed in the manpage of in...
What is path of JDK on Mac ? [duplicate]
...u'll see that you can use this command to reliably start a Java program on OS X (java_home --exec ...), with the ability to explicitly specify the desired Java version and architecture, or even request the user to install it if missing.
A more pedestrian approach, but one which will help you trace ...
iPhone and OpenCV
I know that OpenCV was ported to Mac OS X , however I did not find any info about a port to the iPhone.
13 Answers
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Hadoop “Unable to load native-hadoop library for your platform” warning
I'm currently configuring hadoop on a server running CentOs . When I run start-dfs.sh or stop-dfs.sh , I get the following error:
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How do you beta test an iphone app?
...uch better solution than anything else out there.
– Josh Brown
Feb 2 '11 at 6:16
This one is about 10x prettier than "...