tovbinm

python -m SimpleHTTPServer

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echo <scheduler> > /sys/block/$disk/queue/scheduler
(http://stackoverflow.com/questions/1009577/selecting-a-linux-i-o-scheduler)

tovbinm

On Ubuntu:
1.sudo apt-get install lzop liblzo2-dev
2.download and build: https://github.com/kevinweil/hadoop-lzo
3.copy the resulted jar to: <yourhadoop>/lib/,  typically: /usr/lib/hadoop/lib/
4.download: http://code.google.com/a/apache-extras.org/p/hadoop-gpl-compression/
5.cp ./hadoop-gpl-compression-0.1.0/lib/native/Linux-<your_acrh_type>/*.* /usr/lib/hadoop/lib/native/Linux-<your_acrh_type>/
6.Add the following properties to core-site.xml:
   <property>
    	<name>io.compression.codecs</name>
<value>org.apache.hadoop.io.compress.GzipCodec,org.apache.hadoop.io.compress.DefaultCodec,com.hadoop.compression.lzo.LzoCodec,com.hadoop.compression.lzo.LzopCodec,org.apache.hadoop.io.compress.BZip2Codec</value>

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sed 's/'`echo -e "\01"`'/,/g' input_file.txt > output_file.csv

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On source: 
dd if=/dev/sda  | gzip  -cf | nc <destination-system-ip> <port>

On destination: 
nc -l -p <port> | gzip –dfc | dd of=/dev/sda



(http://conshell.net/wiki/index.php/Linux_P2V)

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Ubuntu:
sudo apt-get install wondershaper
sudo wondershaper eth0 [down rate in kilobits] [up rate in kilobits]

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1.
Paste it to the bash:
git config --global alias.lg "log --graph --pretty=format:'%C(auto)%h -%d %s %Cgreen(%cr) %C(bold blue)%an <%ae>%Creset' --abbrev-commit"

2.
Then in any git repo type: git lg

3.
Enjoy

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$ diff -u riakclient.proto.piqi riakclient.proto.piqi.edited 
--- riakclient.proto.piqi       2012-02-08 20:55:35.000000000 -0600
+++ riakclient.proto.piqi.edited        2012-02-08 20:55:25.000000000 -0600
@@ -299,6 +299,7 @@
     ]
     .field [
         .name done
+        .ocaml-name "ocaml_done"
         .type bool
         .optional

tovbinm

# Nginx - logrotate & upload to S3
0 0 * * * /usr/sbin/logrotate /etc/logrotate.d/nginx 
15 0 * * * s3cmd put /var/log/nginx/access.log-`date +"\%Y\%m\%d"`.gz s3://$LOGS_BUCKET_NAME/nginx-access/`date +"dt=\%Y\%m\%d"`/`hostname -s`.access.log-`date +"\%Y\%m\%d"`.gz

tovbinm

parse_git_branch () {
 git symbolic-ref HEAD 2> /dev/null | sed 's#refs/heads/\(.*\)# \1#'
}
parse_svn_branch() {
 parse_svn_url | sed -e 's#^'"$(parse_svn_repository_root)"'##g' |
awk '{print " (svn::"$1")" }'
}
parse_svn_url() {
 svn info 2>/dev/null | sed -ne 's#^URL: ##p'
}