Script to add all the partitions to the fstab.

2010-06-24 5 min read Bash Fedora

I wrote a simple script today to get all the partitions on all the disks and then create <a class="zem_slink freebase/en/fstab" title="Fstab" rel="wikipedia" href="http://en.wikipedia.org/wiki/Fstab">fstab entry with them. The script also gets the <a class="zem_slink freebase/en/universally_unique_identifier" title="Universally Unique Identifier" rel="wikipedia" href="http://en.wikipedia.org/wiki/Universally_Unique_Identifier">UUID and uses the same to make the entry 🙂

  <td>
    <div class="bash codecolorer">
      <span class="co0">#!/bin/bash -</span><br /> <span class="co0">#===============================================================================</span><br /> <span class="co0">#</span><br /> <span class="co0"># &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;FILE: &nbsp;mount_add_all.sh</span><br /> <span class="co0">#</span><br /> <span class="co0"># &nbsp; &nbsp; &nbsp; &nbsp; USAGE: &nbsp;./mount_add_all.sh</span><br /> <span class="co0">#</span><br /> <span class="co0"># &nbsp; DESCRIPTION: &nbsp;Find all the <a class="zem_slink freebase/en/disk_partitioning" title="Disk partitioning" rel="wikipedia" href="http://en.wikipedia.org/wiki/Disk_partitioning">disk partitions</a> and all those that are not present</span><br /> <span class="co0"># &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; in the fstab.</span><br /> <span class="co0">#</span><br /> <span class="co0"># &nbsp; &nbsp; &nbsp; OPTIONS: &nbsp;---</span><br /> <span class="co0"># &nbsp;REQUIREMENTS: &nbsp;---</span><br /> <span class="co0"># &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;BUGS: &nbsp;---</span><br /> <span class="co0"># &nbsp; &nbsp; &nbsp; &nbsp; NOTES: &nbsp;---</span><br /> <span class="co0"># &nbsp; &nbsp; &nbsp; &nbsp;AUTHOR: &nbsp;<a class="zem_slink" title="Digital Inspiration" rel="homepage" href="http://amit-agarwal.co.in">Amit Agarwal</a> (AKA), amit.agarwal@amit-agarwal.co.in</span><br /> <span class="co0"># &nbsp; &nbsp; &nbsp; COMPANY: &nbsp;Individual</span><br /> <span class="co0"># &nbsp; &nbsp; &nbsp; VERSION: &nbsp;1.0</span><br /> <span class="co0"># &nbsp; &nbsp; &nbsp; CREATED: &nbsp;06/19/2010 10:44:34 PM IST</span><br /> <span class="co0"># &nbsp; &nbsp; &nbsp;REVISION: &nbsp;0.1</span><br /> <span class="co0">#===============================================================================</span><br /> <span class="re2">file</span>=<span class="st0">"/tmp/fstab"</span><br /> <span class="re2">disk_types</span>=<span class="br0">&#40;</span>hd sd<span class="br0">&#41;</span><br /> <span class="re2">count</span>=<span class="co1">${#disk_types}</span><br /> <br /> find_disks <span class="br0">&#40;</span><span class="br0">&#41;</span><br /> <span class="br0">&#123;</span><br /> <span class="kw3">echo</span> <span class="co1">${#disk_types}</span> <span class="re1">$count</span><br /> <span class="kw1">for</span> i <span class="kw1">in</span> $<span class="br0">&#40;</span><span class="kw2">seq</span> <span class="nu0">1</span> <span class="re1">$count</span><span class="br0">&#41;</span><br /> <span class="kw1">do</span><br /> <span class="br0">&#40;</span><span class="br0">&#40;</span> <span class="re2">j</span>=i-<span class="nu0">1</span> <span class="br0">&#41;</span><span class="br0">&#41;</span><br /> <span class="kw3">echo</span> <span class="re1">$i</span> <span class="re1">$j</span><br /> <span class="kw3">echo</span> <span class="re1">$j</span> <span class="co1">${disk_types[0]}</span> <span class="co1">${disk_types[1]}</span><br /> disk_array<span class="br0">&#91;</span><span class="re1">$j</span><span class="br0">&#93;</span>=$<span class="br0">&#40;</span><span class="kw2">ls</span> <span class="sy0"><</span>a <span class="re2">class</span>=<span class="st0">"zem_slink freebase/en/device_file_system"</span> <span class="re2">title</span>=<span class="st0">"Device file"</span> <span class="re2">rel</span>=<span class="st0">"wikipedia"</span> <span class="re2">href</span>=<span class="st0">"http://en.wikipedia.org/wiki/Device_file"</span><span class="sy0">>/</span>dev<span class="sy0"></</span>a<span class="sy0">>/</span><span class="co1">${disk_types[$j]}</span><span class="br0">&#91;</span>a-z<span class="br0">&#93;</span><span class="br0">&#41;</span><br /> <span class="kw3">echo</span> <span class="co1">${disk_array[$j]}</span><br /> <span class="kw1">done</span><br /> <span class="br0">&#125;</span> &nbsp; &nbsp;<span class="co0"># ---------- &nbsp;end of function find_disks &nbsp;----------</span><br /> <br /> find_partitions <span class="br0">&#40;</span><span class="br0">&#41;</span><br /> <span class="br0">&#123;</span><br /> <span class="kw3">echo</span> <span class="st0">"In find_partitions"</span><br /> <span class="re2">l</span>=<span class="nu0"></span><br /> <span class="re2">count</span>=<span class="co1">${#disk_types}</span><br /> <span class="kw1">for</span> i <span class="kw1">in</span> $<span class="br0">&#40;</span><span class="kw2">seq</span> <span class="nu0">1</span> <span class="re1">$count</span><span class="br0">&#41;</span><br /> <span class="kw1">do</span><br /> <span class="br0">&#40;</span><span class="br0">&#40;</span><span class="re2">j</span>=i-<span class="nu0">1</span><span class="br0">&#41;</span><span class="br0">&#41;</span><br /> <span class="kw1">for</span> k <span class="kw1">in</span> <span class="co1">${disk_array[$i]}</span><br /> <span class="kw1">do</span><br /> <span class="kw3">echo</span> <span class="re1">$k</span><br /> <span class="sy0"><!</span>--loginview start--<span class="sy0">></span>disk_partitions<span class="br0">&#91;</span><span class="re1">$l</span><span class="br0">&#93;</span>=<span class="sy0">`</span><span class="kw2">fdisk</span> <span class="re5">-l</span> <span class="re1">$k</span> <span class="sy0">|<</span>a <span class="re2">class</span>=<span class="st0">"zem_slink freebase/en/grep"</span> <span class="re2">title</span>=<span class="st0">"Grep"</span> <span class="re2">rel</span>=<span class="st0">"wikipedia"</span> <span class="re2">href</span>=<span class="st0">"http://en.wikipedia.org/wiki/Grep"</span><span class="sy0">></span><span class="kw2">grep</span><span class="sy0"></</span>a<span class="sy0">></span> <span class="st0">"^/dev"</span> <span class="sy0">|</span><span class="kw2">grep</span> <span class="re5">-v</span> <span class="st0">"Extended$"</span><span class="sy0">|</span><span class="kw2">cut</span> <span class="re5">-d</span><span class="st0">" "</span> -f1<span class="sy0">`</span><br /> <span class="kw3">echo</span> <span class="co1">${disk_partitions[$l]}</span> <span class="re1">$l</span><span class="sy0"><!</span>--loginview end--<span class="sy0">></span><br /> <span class="br0">&#40;</span><span class="br0">&#40;</span>l++<span class="br0">&#41;</span><span class="br0">&#41;</span><br /> <span class="kw1">done</span><br /> <span class="kw1">done</span><br /> <span class="br0">&#125;</span> &nbsp; &nbsp;<span class="co0"># ---------- &nbsp;end of function find_partitions &nbsp;----------</span><br /> <br /> add_fat <span class="br0">&#40;</span><span class="br0">&#41;</span><br /> <span class="br0">&#123;</span><br /> <span class="kw3">echo</span> <span class="st0">"# Added with script for <span class="es2">$label</span> and <span class="es2">$k</span>"</span> <span class="sy0">>></span> <span class="re1">$file</span><br /> <span class="kw3">echo</span> <span class="st0">"<span class="es2">$uuid</span> /mnt/<span class="es2">$label</span> vfat&nbsp; nosuid,nodev,uhelper=udisks,uid=500,gid=500,shortname=mixed,dmask=0077&nbsp; 0 0"</span> &nbsp;<span class="sy0">>></span> <span class="re1">$file</span><br /> <span class="br0">&#125;</span> &nbsp; &nbsp;<span class="co0"># ---------- &nbsp;end of function add_fat &nbsp;----------</span><br /> <br /> add_<span class="sy0"><</span>a <span class="re2">class</span>=<span class="st0">"zem_slink freebase/en/ext3"</span> <span class="re2">title</span>=<span class="st0">"Ext3"</span> <span class="re2">rel</span>=<span class="st0">"wikipedia"</span> <span class="re2">href</span>=<span class="st0">"http://en.wikipedia.org/wiki/Ext3"</span><span class="sy0">></span>ext3<span class="sy0"></</span>a<span class="sy0">></span> <span class="br0">&#40;</span><span class="br0">&#41;</span><br /> <span class="br0">&#123;</span><br /> <span class="kw3">echo</span> <span class="st0">"# Added with script for <span class="es2">$label</span> and <span class="es2">$k</span>"</span> <span class="sy0">>></span> <span class="re1">$file</span><br /> <span class="kw3">echo</span> <span class="st0">"<span class="es2">$uuid</span> /mnt/<span class="es2">$label</span> ext3     defaults     0 0"</span> <span class="sy0">>></span> <span class="re1">$file</span><br /> <br /> <span class="br0">&#125;</span> &nbsp; &nbsp;<span class="co0"># ---------- &nbsp;end of function add_ext3 &nbsp;----------</span><br /> <br /> find_UUID <span class="br0">&#40;</span><span class="br0">&#41;</span><br /> <span class="br0">&#123;</span><br /> <span class="kw3">echo</span> <span class="st0">"In find_UUID with <span class="es2">$l</span>"</span><br /> <span class="br0">&#40;</span><span class="br0">&#40;</span>l--<span class="br0">&#41;</span><span class="br0">&#41;</span><br /> <span class="kw1">for</span> i <span class="kw1">in</span> $<span class="br0">&#40;</span><span class="kw2">seq</span> <span class="nu0"></span> <span class="re1">$l</span><span class="br0">&#41;</span><br /> <span class="kw1">do</span><br /> <span class="kw3">echo</span> <span class="co1">${disk_partitions[$i]}</span><br /> <span class="kw1">for</span> k <span class="kw1">in</span> <span class="co1">${disk_partitions[$i]}</span><br /> <span class="kw1">do</span><br /> <span class="kw3">echo</span> <span class="re1">$k</span><br /> <span class="sy0"><!</span>--loginview start--<span class="sy0">></span><span class="re2">temp</span>=$<span class="br0">&#40;</span>blkid <span class="re1">$k</span><span class="br0">&#41;</span><br /> <span class="re2">label</span>=$<span class="br0">&#40;</span><span class="kw3">echo</span> <span class="re1">$temp</span><span class="sy0">|</span><span class="kw2">grep</span> <span class="st0">"LABEL="</span><span class="sy0">|</span><span class="kw2">sed</span> <span class="co3">\'</span>s<span class="sy0">/</span>.<span class="sy0">*</span><span class="re2">LABEL</span>=<span class="st0">"//\'|sed \'s/"</span>.<span class="sy0">*//</span><span class="co3">\'</span><span class="br0">&#41;</span><br /> <span class="re2">uuid</span>=$<span class="br0">&#40;</span><span class="kw3">echo</span> <span class="re1">$temp</span><span class="sy0">|</span><span class="kw2">grep</span> <span class="st0">"UUID="</span><span class="sy0">|</span><span class="kw2">sed</span> <span class="co3">\'</span>s<span class="sy0">/</span>.<span class="sy0">*</span><span class="re2">UUID</span>=<span class="st0">"//\'|sed \'s/"</span>.<span class="sy0">*//</span><span class="co3">\'</span><span class="br0">&#41;</span><br /> <span class="re2">atype</span>=$<span class="br0">&#40;</span><span class="kw3">echo</span> <span class="re1">$temp</span><span class="sy0">|</span><span class="kw2">grep</span> <span class="st0">"TYPE="</span><span class="sy0">|</span><span class="kw2">sed</span> <span class="co3">\'</span>s<span class="sy0">/</span>.<span class="sy0">*</span><span class="re2">TYPE</span>=<span class="st0">"//\'|sed \'s/"</span>.<span class="sy0">*//</span><span class="co3">\'</span><span class="br0">&#41;</span><span class="sy0"><!</span>--loginview end--<span class="sy0">></span><br /> <span class="kw1">if</span> <span class="br0">&#91;</span> <span class="re1">$atype</span> = <span class="st0">"vfat"</span> <span class="br0">&#93;</span><br /> <span class="kw1">then</span><br /> add_fat <span class="re1">$label</span> <span class="re1">$uuid</span> <span class="re1">$k</span><br /> <span class="kw1">fi</span><br /> <span class="kw1">if</span> <span class="br0">&#91;</span> <span class="re1">$atype</span> = <span class="st0">"ext3"</span> <span class="br0">&#93;</span><br /> <span class="kw1">then</span><br /> add_ext3 <span class="re1">$label</span> <span class="re1">$uuid</span> <span class="re1">$k</span><br /> <span class="kw1">fi</span><br /> <span class="kw3">echo</span> <span class="re1">$label</span> <span class="re1">$uuid</span> <span class="re1">$atype</span><br /> <span class="kw1">done</span><br /> <span class="kw1">done</span><br /> <span class="br0">&#125;</span> &nbsp; &nbsp;<span class="co0"># ---------- &nbsp;end of function find_UUID &nbsp;----------</span><br /> <br /> find_disks<br /> find_partitions<br /> find_UUID
    </div>
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Fedora 11 – Mount options for vfat and other volumes for automount. (amit-agarwal.co.in)
ESX4 cannot create datastore (edugeek.net)
Creating a Partition on an External Hard Drive (brighthub.com)
Partition Assistant v2.1 (lockergnome.com)

$\"Enhanced$

Filename completion in Linux with mixed case and ignored case.

2010-06-23 1 min read Bash Linux

This is one of my favourites, alwahs keep it handy. Linux is case sensitive by nature but you will always find filenames jumbled up in the case. So what is the solution:

bind ”set completion-ignore-case on”

Just execute the above in your bash command and file/dir name will behave like Windows. Remember that this is per session setting and thus the names do not get changed internally, it only changes the way to access it (specifically completion only). So if you want this behaviour in all your sessions put this in the appropriate profile file.

cdargs – bash cd command with bookmarks and browser.

2010-06-22 0 min read Bash Learning Linux

$\"Screenshot$: Image via Wikipedia

cdargs is a <a class="zem_slink freebase/en/bash" title="Bash" rel="homepage" href="http://tiswww.case.edu/php/chet/bash/bashtop.html">bash shell cd with bookmarks and browser. Quite useful if you are developer or someone who use’s the bash shell very frequently

Name       : cdargs

Arch : i686 Version : 1.35 Release : 5.fc12 Size : 114 k Repo : installed From repo : fedora Summary : The shell cd with bookmarks and browser URL : http://www.skamphausen.de/software/cdargs/ License : <a class="zem_slink freebase/en/gnu_general_public_license" title="GNU General Public License" rel="wikipedia" href="http://en.wikipedia.org/wiki/GNU_General_Public_License">GPLv2</a>+ Description: Enables the user to quickly change <a class="zem_slink freebase/en/working_directory" title="Working directory" rel="wikipedia" href="http://en.wikipedia.org/wiki/Working_directory">working directory</a> by navigating cd arguments : and expanding the shell built-in cd with bookmarks and browser.

concatenate compressed and uncompressed logs

2010-06-21 1 min read Bash Linux

<span style="font-size: x-large;"><a href="http://feedproxy.google.com/~r/Command-line-fu/~3/iwFUyltYgjM/concatenate-compressed-and-uncompressed-logs">concatenate compressed and uncompressed logs

$ find /var/log/apache2 -name 'access.loggz' -exec <a class="zem_slink freebase/en/gzip" title="Gzip" rel="homepage" href="http://www.gzip.org/">zcat {} ; -or -name 'access.log' -exec cat {} ; This command allows you to stream your log files, including gziped files, into one stream which can be piped to <a class="zem_slink freebase/en/awk" title="AWK" rel="homepage" href="http://cm.bell-labs.com/cm/cs/awkbook/index.html">awk or some other command for analysis.

Note: if your version of ’find’ supports it, use:

Linux command to repeat a string n times

2010-06-17 1 min read Bash

There are more than one situation where you wished that there was a simple way to print a character n number of times. At least I face that quite often, especially when you want to print a menu. I found this post today which has pretty good solution and also the way how it works :
<a href="http://superuser.com/questions/86340/linux-command-to-repeat-a-string-n-times">http://superuser.com/questions/86340/linux-command-to-repeat-a-string-n-times

Linux Version Of Unreal IRC Servers Contained Trojans Since 2009 (techie-buzz.com)
Does Linux need to be defrag\’d? (ghacks.net)
000-856 Exam Pdf Demo (slideshare.net)
The power of find command in Linux – advanced. (amit-agarwal.co.in)
GNU/Linux: The Name Game (omgubuntu.co.uk)

$\"Enhanced$

Change pidgin status from the command line

2010-06-16 1 min read Bash Fedora Linux

$ purple-remote "setstatus?status=away&message=AFK" Thanks for the comment oshazard, i wasn’t aware of purple-remote existence.

<a href="http://www.commandlinefu.com/commands/view/4554/change-pidgin-status">View this command to comment, vote or add to favourites
<a href="http://feeds2.feedburner.com/commands/by/unixApe">View all commands by <a href="http://feeds2.feedburner.com/commands/by/unixApe">unixApe

by David Winterbottom (<a href="http://codeinthehole.com">codeinthehole.com)

URL: <a href="http://feedproxy.google.com/~r/Command-line-fu/~3/Ky02xAVnP7w/change-pidgin-status">http://feedproxy.google.com/~r/Command-line-fu/~3/Ky02xAVnP7w/change-pidgin-status

List of commands you use most often

2010-06-16 1 min read Bash Learning

<span style="font-size: x-large;"><a href="http://feedproxy.google.com/~r/Command-line-fu/~3/6MxHiSiINdo/list-of-commands-you-use-most-often">List of commands you use most often

$ history | <a class="zem_slink freebase/en/awk" title="AWK" rel="homepage" href="http://cm.bell-labs.com/cm/cs/awkbook/index.html">awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head > /tmp/cmds | gnuplot -persist <(echo 'plot "/tmp/cmds" using 1:xticlabels(2) with boxes') Plot your most used commands with gnuplot.

<a href="http://www.commandlinefu.com/commands/view/5845/list-of-commands-you-use-most-often">View this command to comment, vote or add to favourites
<a href="http://feeds2.feedburner.com/commands/by/sthrs">View all commands by <a href="http://feeds2.feedburner.com/commands/by/sthrs">sthrs

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