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Linux Commandline Stuff

=uuencode=
==make random text file==
*put this in <code>make_random.sh</code>:
<pre>head -c 100000 < /dev/random | uuencode -m - | tail -n 100000 > out.txt</pre>
*see http://old.roberttwomey.com/uuencode/index.php

==encode image as text==
*turning image to text: <pre>cat urs\ fischer\ 3.jpg | uuencode -m -o ursfischer.txt usfischer.jpg</pre>
==decode text as image==
*extract image: <pre>uudecode ursfischer_alt.txt </pre>

= du to list size of subdirectories = 
* list size of subdirectories in human readable format: <code>du -skh*</code>
* to sort by size: <code>du -skh * | sort</code>

= add remote git repository =

adding dxarts git repository
<code>
  505  git clone git@code.dxarts.washington.edu:gitosis-admin.git
  506  ls
  507  cd gitosis-admin/
  508  ls
  509  ll
  510  vi gitosis.conf 
  511  git status
  512  git add -u
  513  git status
  514  git commit
  515  git commit
  516  git status
  517  git push

</code>

*create empty local repository
<pre>
cd my_project
git init
git add *
git commit -m "My initial commit message"
git remote add origin git@example.com:my_project.git
git push -u origin master
</pre>

*adding remote repository and pushing to it:
<code>
  664  git status
  665  git remote add origin git@code.dxarts.washington.edu:oftwomey.git
  666  git status
  667  git push origin master
  668  git
  669  ls
  670  git push
</code>

= remove page numbers in place with perl =

<code> perl -pi -e "s/p+\s+\d+(-\d*)*\.|p+\d+(-\d*)*\.//g" reading.txt </code>

= Rsync = 
==rsync personae data to minibeast==
*from Persona directory on local: <code>rtwomeys-work-object-2:Personae rtwomey$ rsync -avz --stats --progress . 192.168.1.31:/Volumes/Cistern/Personae/</code>
==rsync to transfer files to server ==
*local current directory to home/pictures directory: 
<code>rsync -avz --stats --progress Pictures roberttwomey.com:~/pictures/</code>
*local directory to current directory: 
<code>rsync -avz --stats --progress /Volumes/BOOTCAMP/Users/rtwomey/Documents/ .</code>
*local directory to server backup: 
<code>rsync -h -e ssh -avz --stats --progress ./Movies/* b393466@hanjin.dreamhost.com:~/Movies/</code>

<code>rsync -e ssh -avz --stats --progress ./Documents USER@SERVER.dreamhost.com:~/</code>
*server backup to local directory: 
<code>rsync -e ssh -avz --stats --progress USER@SERVER.dreamhost.com:~/Documents .</code>
*grab documents from online backup:
<code>rsync -n -h -e ssh -avz --stats --progress b393466@hanjin.dreamhost.com:~/Documents/dxarts473_s11/ Documents/</code>
=== rsync push.sh ===
with optional delete
<pre>
#!/bin/bash

echo name of script is $0
echo first argument is $1

if [ $# -lt 1 ]
then
        echo "usage: $0 [DIRECTORY]"
        echo "  or"
        echo "       $0 -n [DIRECTORY]"
        echo "  or "
        echo "       $0 -n --delete [DIRECTORY]"
        exit
fi


if [ $1 = "-n" ]
then
        if [ $2 = "--delete" ]
        then
                cmd="rsync -n --delete -h -e ssh -avz --stats --progress $3 b393466@hanjin.dreamhost.com:~/$3"
        else
                cmd="rsync -n -h -e ssh -avz --stats --progress $2 b393466@hanjin.dreamhost.com:~/$2"
        fi
elif [ $1 = "--delete" ]
then
        cmd="rsync --delete -h -e ssh -avz --stats --progress $2 b393466@hanjin.dreamhost.com:~/$2"
else
        cmd="rsync -h -e ssh -avz --stats --progress $1 b393466@hanjin.dreamhost.com:~/$1"
fi

echo $cmd
$cmd
</pre>

=== rsync pull.sh ===

<pre>
#!/bin/bash

echo name of script is $0
echo first argument is $1

if [ $# -lt 1 ]
then
	echo "usage: $0 [DIRECTORY]"
	echo "  or"
	echo "       $0 -n [DIRECTORY]"
        echo "  or "
        echo "       $0 -n --delete [DIRECTORY]"
	exit
fi

if [ $1 = "-n" ]
then
        if [ $2 = "--delete" ]
        then
                cmd="rsync -n --delete -h -e ssh -avz --stats --progress b393466@hanjin.dreamhost.com:~/$3 $3"
        else
                cmd="rsync -n -h -e ssh -avz --stats --progress b393466@hanjin.dreamhost.com:~/$2 $2"
        fi
elif [ $1 = "--delete" ]
then
        cmd="rsync --delete -h -e ssh -avz --stats --progress b393466@hanjin.dreamhost.com:~/$2 $2"
else
        cmd="rsync -h -e ssh -avz --stats --progress b393466@hanjin.dreamhost.com:~/$1 $1"
fi

echo $cmd
$cmd
</pre>

= finding things with grep = 
== finding files recursively with ls and grep ==
* find this filename in a recursive search and show previous 30 lines of result:
<pre>ls -laR . | grep -b30 "scale_signal.o" </pre>

== finding text within files recursively with grep ==
<pre>grep -Hrn 'HTS_Pauses' meghan_festival/</pre>

= forwarding localhost mysql to a remote machine =
* do this to connect to 192.168.0.39 for instance:
<code>ssh -f -L 3306:localhost:3306 rtwomey@192.168.0.39 sleep 10</code>
*tunnelMySql.sh:
<code>

ssh -fNg -L 3306:localhost:3306 rtwomey@192.168.1.191
</code>
= grabbing a website with wget =
*grab a website recursively
<code> wget -r --level=1 http://www.ppc.sas.upenn.edu/ppquestionnaires.htm </code>

= Open Files from Command Line (OS X) =
*<pre>open -e solipsist\ dialog\ 20120610\ storefront.txt </pre>

=use sed to search and replace a file in place=
<pre>sed -i .bak 's/na_play/play/g' bin/prompt_them </pre>
=gphoto2=
*http://photolifetoys.blogspot.com/2012/08/control-your-camera-with-gphoto2-via.html