Well, if you are a professional who has to keep referring to RFC, then you know how good it would be to have the RFC downloaded and kept in your computer. But then unless you can search it and use and editor with it, its of not much use. So, here is something that you can do :
Continue readingI was working on some scripts and the changes that I was making in the scripts was very dynamic, which I did want to keep backing up in the version control system. But for the peace of my mind, I wanted to keep a copy of the scripts, whenever it was in working state.
Since I had multiple files, so it would make more sense to have a script that could copy all the files in the current directory to “old” directory without over-writing the existing files. So, I wrote a script that would postfix the files with a number. With this approach, finally what I had was the following:
Continue readingHere is one of the scripts that I found on the net while searching for something … Note the URL for the script in the Description.
#!/bin/bash - #=============================================================================== # # FILE: linux_hw.sh # # USAGE: ./linux_hw.sh # # DESCRIPTION: http://www.howtogeek.com/howto/solaris/get-the-processor-type-on-solaris/ # # OPTIONS: --- # REQUIREMENTS: --- # BUGS: --- # NOTES: --- # AUTHOR: Amit Agarwal (aka), amit.agarwal@roamware.com # COMPANY: Roamware India Pvt Ltd # CREATED: 09/13/2011 03:57:34 PM IST # Last modified: Sun Oct 30, 2011 04:59PM # REVISION: --- #=============================================================================== function linux_hw_CPU { typeset num=0 typeset name="" typeset cores="" name="$( cat /proc/cpuinfo | awk -F: ' /vendor_id/ { vendor=$2 } /model name/ { model=$2 } /cpu MHz/ { if( model ~ "Hz" ) {speed=""} else { speed=$2? MHz" }; print vendor, model, speed; } ' | tail -1 )" num=$(if [ -r /proc/vmware/cpuinfo ]; then awk '/pcpu/ { print NF-1 }' /proc/vmware/cpuinfo; else cat /proc/cpuinfo | grep processor| wc -l; fi) # ESX: mas info sobre logical/cores/packages if [ -r /proc/vmware/sched/ncpus ] then cores=$( echo $( cat /proc/vmware/sched/ncpus ) ) fi echo $num $( echo "$name ($cores)" | enclose ) } function enclose { tr -s " " | sed -e "s/^/\"/; s/$/\"/; s/\"\ /\"/; s/\ \"/\"/" } function linux_hw_CPU { typeset num=0 typeset name="" typeset cores="" name="$( cat /proc/cpuinfo | awk -F: ' /vendor_id/ { vendor=$2 } /model name/ { model=$2 } /cpu MHz/ { if( model ~ "Hz" ) {speed=""} else { speed=$2" MHz" }; print vendor, model, speed; } ' | tail -1 )" num=$( if [ -r /proc/vmware/cpuinfo ] then awk '/pcpu/ { print NF-1 }' /proc/vmware/cpuinfo else cat /proc/cpuinfo | grep processor| wc -l fi ) if grep -q "physical id" /proc/cpuinfo || grep "siblings" /proc/cpuinfo then chip_count=$( grep "physical id" /proc/cpuinfo | sort -u | wc -l ) chip_core=$( grep "siblings" /proc/cpuinfo | tail -1 | cut -d: -f2 ) cores="($chip_count chips x $chip_core cores)" fi # Blades HP con if [ -x /sbin/hpasmcli ] then chip_name=$( /sbin/hpasmcli -s "SHOW SERVER" | grep "Name" | head -1 | cut -d: -f2 ) chip_speed=$( /sbin/hpasmcli -s "SHOW SERVER" | grep "Speed" | head -1 | cut -d: -f2 ) chip_core=$( /sbin/hpasmcli -s "SHOW SERVER" | grep "Core" | head -1 | cut -d: -f2 ) fi # ESX: mas info sobre logical/cores/packages if [ -r /proc/vmware/sched/ncpus ] then cores="($( echo $( cat /proc/vmware/sched/ncpus ) ))" fi # Linux Itanium IA64 if grep -q -i itanium /proc/cpuinfo then name="$( grep "vendor" /proc/cpuinfo | cut -d: -f2- | tail -1 ) $( grep "arch " /proc/cpuinfo | cut -d: -f2- | tail -1 ) $( grep "family" /proc/cpuinfo | cut -d: -f2- | tail -1 ) $( grep "cpu MHz" /proc/cpuinfo | cut -d: -f2- | cut -d. -f1 | tail -1 ) Mhz" chip_count=$( grep "physical id" /proc/cpuinfo | sort -u | wc -l ) chip_core=$( grep "siblings" /proc/cpuinfo | tail -1 | cut -d: -f2 ) cores="($chip_count chips x $chip_core cores)" fi echo $num $( echo "$name $cores" | enclose ) } linux_hw_CPU
First lets install quadkonsole:
yum install quadkonsole
Now, to launch the quadkonsole, just type quadkonsole in the run box (appears with Alt+F2).
You will by default see 4 console windows in single window but you can change that with command line options like so:
quadkonsole --rows 4 --columns 4
This will initiate windows with 16 consoles. How cool is that.
If you are working on recent versions of the *nix OS like Fedora or Ubuntu then you would know about the commad ssh-copy-id. But if you land up using one of the older versions like Solaris or something where the command is not present, then probably you need a simpler solution to this. One of the simplest solution is with a lot of assumtions, simply copy the id_rsa file to remote server and hope it works. And here is a script to do just that:
Continue reading
Some time back, I was trying to find out all the codecs that are installed for my mplayer. These could be the ones that came with mplayer or the ones that I downloaded from the site and installed in the various directories.
I could not find a direct way to do this, until I found this:
mplayer -ac help -vc help
And here is the output of the command:
Continue reading
Here is something that I found on the commandlinefu
cp /work/host/phone/ui/main.cpp !#$:s/host/target
Ah well…its very interesting and very useful.
Some explanation:
!# – means the current command (similar to !! being the last command)
$ – represents the last parameter
:s – is used for substitution.
