dearN's questions

I have a folder with csv files whose file names are dates, viz.: January-01-2018.csv, January-02-2018.csv, ..., April-30-2018.csv.

Using Bash preferably, I want to extract the number of lines from each csv file but doing so in order of date. i.e., I wish to extract the number of lines in January-01-2018.csv and then January-02-2018.csv ... and then April-30-2018.csv and so on.

At the moment, all I have is:

for filename in $(ls *.csv); do cat $filename | wc -l >> by_day.dat; done

But this does not take care of my operation in "ascending order of date".

Any suggestions on how I might accomplish this? I would like to do this using bash.

I have many zip files (think 100-150) in a folder. Each zip file has multiple files with different file extensions. I know how to write a bash for loop to unzip all the contents of these files.

What I want to do is this.... Use 7z (or some other) to unzip each zip file and given the contents of that zip file the same file name as the zip file.

This is what I have currently.

#!/bin/bash
for i in *.zip;
    do
        echo $i #For debugging purpose
        7z x $i &
    done

Edit 2:

#!/bin/bash


for i in *.zip;
    do
        fbname=$(basename "$i" .zip);
        fem_fileName=$(unzip -l $i | grep .fem | awk '{print $4}')
        echo $fbname
        echo $fem_fileName
        $unzip $i
        7z e $i *.fem -y
        #echo $fbname
        #echo $fem_fileName
        mv $fem_fileName $fbname
    done

The newest issue is: what if the zip file I am operating on has multiple sub-directories? How do I have 7z or other utility recursively check for "folder in folder in zip file"?

Zip_file:

|----Folder_1

|------------Folder_2

|--------------------Contents_to_extract

Contents_to_extract > change file name to > zip_file

So I create presentations using LaTeX and the Beamer class. This allows me to embed videos (.mp4, .avi, .gif) formats in my presentation. These seem to play well in full versions of acrobat reader but these videos DO NOT play in Okular.

Is there something else I should do to configure Okular? Is this a LaTeX question or a Ubuntu question? ;)

Code snippet to embed video in latex

\documentclass[bookmarks=true]{beamer}
\setbeamertemplate{footline}[page number]
\setbeamercolor{structure}{bg=yellow, fg=black}
\usepackage{times}
\usepackage[T1]{fontenc}

\usepackage{movie15}
\usepackage{fourier-orns}

\begin{document}
    \begin{frame}
    \frametitle{Slide Title Here}

    \centering
    \includemovie{6.5cm}{6.5cm}{./figures/Video.avi}

    \end{frame}
\end{document}

I am running Ubuntu 11.10. I have this error message that shows as a no-entry sign such as this.

I read the following questions on the forum:

Broken package after update: linux-headers, error brokencount >0

Dependencies not met on 12.04? duplicate

Broken package after update: linux-headers, error broken count >0

However, these point to my drive being full. I ran df -i and got the following output:

df -i
Filesystem            Inodes   IUsed   IFree IUse% Mounted on
/dev/sda1            30048256  985142 29063114    4% /
udev                 1010270     511 1009759    1% /dev
tmpfs                1012523     445 1012078    1% /run
none                 1012523       1 1012522    1% /run/lock
none                 1012523       8 1012515    1% /run/shm

The error message also suggests that I run sudo apt-get install -f. I don't know what that does and when I run it, it warns me that it is going to remve about 2 GB worth of stuff!

sudo apt-get install -f
[sudo] password for dnaneet: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  libgdl-3-common libaccess-bridge-java python-logilab-astng freetennis-common
  libntfs10 pylint sensible-mda cdparanoia libanjuta-3-0 python-sphinx
  python-mako python-pywapi texlive python-pygments libqtscript4-network id3v2
  python-reportlab libqtscript4-gui mercurial pyflakes libboost-signals1.46.1
  assaultcube-data texlive-fonts-recommended python-uniconvertor
  libtag-extras1 libqtscript4-sql python-renderpm libgtkpod1 libid3-3.8.3c2a
  k3b-data libqtscript4-xml procmail libqjson0 python-dnspython
  libjs-underscore libaccess-bridge-java-jni tipa libcluttergesture-0.0.2-0
  indicator-status-provider-emesene amarok-utils python-svn python-docutils
  libclutter-imcontext-0.1-0 python-rope cheese-common amarok-common
  texlive-fonts-recommended-doc anjuta-common wine1.2-gecko libmx-1.0-2
  vorbis-tools python-logilab-common python-markupsafe libgtksourceview2.0-0
  gtkpod-data libenet1a libqtscript4-uitools liblastfm0 libgsl0ldbl
  python-roman libloudmouth1-0 python-jinja2 libqtscript4-core python-xmpp
  libclutter-gtk-1.0-0 libgdl-3-1 libjs-sphinxdoc python-reportlab-accel
  libgtksourceview2.0-common mercurial-common
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
  0ad 0ad-data 0ad-data-common amarok apturl banshee
  banshee-extension-soundmenu banshee-extension-ubuntuonemusicstore
  bluez-gstreamer brasero brasero-cdrkit cb2bib cheese dconf-tools emesene
  empathy evolution-data-server gimp ginn gir1.2-rb-3.0 gir1.2-totem-1.0
  gir1.2-webkit-3.0 gloobus-preview gnome-codec-install gnome-control-center
  gnome-media gnome-online-accounts gnome-power-manager gnome-session-fallback
  gnome-shell gnome-tweak-tool gnome-user-guide gnome-video-effects gnuplot
  gnuplot-x11 gstreamer0.10-alsa gstreamer0.10-ffmpeg
  gstreamer0.10-fluendo-mp3 gstreamer0.10-gconf gstreamer0.10-nice
  gstreamer0.10-plugins-bad gstreamer0.10-plugins-bad-multiverse
  gstreamer0.10-plugins-base gstreamer0.10-plugins-base-apps
  gstreamer0.10-plugins-good gstreamer0.10-plugins-ugly
  gstreamer0.10-pulseaudio gstreamer0.10-tools gstreamer0.10-x gtkpod gwibber
  indicator-datetime indicator-power inkscape k3b kde-runtime kdebase-runtime
  kdelibs5-plugins kdemultimedia-kio-plugins kile kile-l10n konsole
  kubuntu-debug-installer libbrasero-media3-1 libcanberra-gtk3-module
  libcheese-gtk20 libcheese1 libclutter-gst-1.0-0 libdmapsharing-3.0-2
  libgnome-media-profiles-3.0-0 libgoa-1.0-0 libgstfarsight0.10-0
  libgstreamer-plugins-base0.10-0 libgstreamer0.10-0 libk3b6
  libk3b6-extracodecs libkcddb4 libkdewebkit5 libokularcore1 libplasma3
  libpurple0 libqtwebkit-dev libqtwebkit4 libreoffice-base-core
  libreoffice-calc libreoffice-common libreoffice-core libreoffice-draw
  libreoffice-emailmerge libreoffice-gnome libreoffice-gtk libreoffice-help-de
  libreoffice-help-en-gb libreoffice-help-en-us libreoffice-help-fr
  libreoffice-impress libreoffice-l10n-de libreoffice-l10n-en-gb
  libreoffice-l10n-en-za libreoffice-l10n-fr libreoffice-math
  libreoffice-style-human libreoffice-writer librhythmbox-core4 libslv2-9
  libsyncdaemon-1.0-1 libtelepathy-farsight0 libtotem0 libubuntuone-1.0-1
  libubuntuone1.0-cil libwebkitgtk-1.0-0 libwebkitgtk-3.0-0 libwxgtk2.8-0
  libyelp0 metacity mythes-de mythes-de-ch mythes-en-au mythes-en-us mythes-fr
  nautilus-sendto-empathy nautilus-share netflix-desktop notify-osd okular
  oneconf openoffice.org-common phonon phonon-backend-gstreamer
  plasma-scriptengine-javascript playonlinux python-farsight python-gst0.10
  python-lxml python-papyon python-qt4 python-spyderlib
  python-ubuntuone-client python-ubuntuone-control-panel python-uno
  python-webkit python-wxgtk2.8 python-wxversion qapt-batch rhythmbox
  rhythmbox-plugin-cdrecorder rhythmbox-plugins screenlets screenlets-pack-all
  sessioninstaller shotwell software-center spyder steam:i386
  telepathy-butterfly telepathy-haze totem totem-mozilla totem-plugins
  ubuntu-docs ubuntu-sso-client ubuntuone-client ubuntuone-client-gnome
  ubuntuone-control-panel ubuntuone-control-panel-gtk ubuntuone-couch unity-2d
  update-notifier wine-browser-installer xul-ext-ubufox yelp zenity
0 upgraded, 0 newly installed, 172 to remove and 11 not upgraded.
10 not fully installed or removed.
After this operation, 2,001 MB disk space will be freed.
Do you want to continue [Y/n]?

So what should I do about this?

Edit: List of recent packages installed

2013-02-05 07:47:12 status installed man-db 2.6.0.2-2
2013-02-05 07:47:13 status installed bamfdaemon 0.2.104-0ubuntu1.1
2013-02-05 07:47:14 status installed desktop-file-utils 0.18-0ubuntu9
2013-02-05 07:47:14 status installed gnome-menus 3.2.0-0ubuntu2
2013-02-05 07:47:25 status installed hicolor-icon-theme 0.12-1ubuntu1
2013-02-05 07:47:26 status installed menu 2.1.45ubuntu1
2013-02-05 07:47:28 status installed initramfs-tools 0.99ubuntu8
2013-02-05 07:51:28 status installed google-chrome-stable 24.0.1312.68-r180326
2013-02-05 07:51:28 status installed ubuntu-docs 11.10.6
2013-02-05 07:51:28 status installed inkscape 0.48.2-0ubuntu1.1
2013-02-05 07:51:29 status installed libavutil-extra-51 4:0.7.6ubuntu0.11.10.3+medibuntu1
2013-02-05 07:51:29 status installed libavcodec-extra-53 4:0.7.6ubuntu0.11.10.3+medibuntu1
2013-02-05 07:51:29 status installed whois 5.0.11ubuntu3
2013-02-05 07:51:30 status installed mendeleydesktop 1.8-stable
2013-02-05 07:51:30 status installed chromium-codecs-ffmpeg 24.0.1312.56-0ubuntu0.11.10.1
2013-02-05 07:51:30 status installed chromium-browser 24.0.1312.56-0ubuntu0.11.10.1
2013-02-05 07:51:31 status installed chromium-browser-l10n 24.0.1312.56-0ubuntu0.11.10.1
2013-02-05 07:51:41 status installed menu 2.1.45ubuntu1
2013-02-05 07:51:42 status installed libc-bin 2.13-20ubuntu5.3
2013-02-05 07:51:42 status installed initramfs-tools 0.99ubuntu8
2013-02-09 12:46:24 startup archives install
2013-02-09 12:50:39 startup archives install
2013-02-09 12:50:47 install steam:i386 <none> 1.0.0.25
2013-02-09 12:50:49 status installed bamfdaemon 0.2.104-0ubuntu1.1
2013-02-09 12:50:50 status installed desktop-file-utils 0.18-0ubuntu9
2013-02-09 12:50:50 status installed gnome-menus 3.2.0-0ubuntu2
2013-02-09 12:51:04 status installed hicolor-icon-theme 0.12-1ubuntu1
2013-02-09 12:51:05 status installed man-db 2.6.0.2-2

Output from sudo apt-get install

Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 steam:i386 : Depends: xterm:i386 but it is not installed or
                       gnome-terminal:i386 but it is not installed
              Depends: zenity:i386 but it is not installed
E: Unmet dependencies. Try using -f

I got rid of unity in my Ubuntu 11.10 on a dell mini following the steps as in this post. I had ensured that I installed gnome-panel before I did this and removed unity from within gnome-panel.

When I rebooted, all I have now is the blank scree with some text where my computer is running tests:

It is stuck now at * Checking battery status... [OK ]

Did I do something horribly wrong? As this is a netbook, I don't have a dvd tray to try and rescue ubuntu.

If this is something horribly wrong, what do you suggest I do? I have access to usb ports and can try a fresh install of say openbox or something via usb if that is possible.

Edit:

I don't have network access from the grun/root option. So I can't update my nvidia driver as in here

I just installed openbox via sudo apt-get install openbox. It already has obconf, btw.

I noticed that when I logged into my openbox session instead of the one I usually use (gnome-panel and NOT Ubuntu 2D or one of the high overhead environments) and checked via htop, I found that a similar amount of RAM was being occupied (~600 MB or so) with openbox or gnome-panel.

What gives? Openbox looks lighter but it certainly isn't any different. Obviously the same daemons etc would run in both environments as they share the same folders.

Is gnome-panel as good as openbox then?

Edit:

The comparison of memory used is quite similar and the gain isn't large by any means (by using openbox) htop output with gnome-panel

htop output with openbox session

How do I edit the update.conf at /etc/update.conf to run every day on Ubuntu? This would enable me to use locate with a very recent database.

I read this:

default setting, updatedb, it has been in /etc/cron.daily and its name is slocate.cron if you want to run updatedb on startup, you can add the line updatebd to the file /etc/rc.d/rc.local.

In FC4 you must edit the file /etc/updatedb.conf and set DAILY_UPDATE=yes.

But that is for Fedora.

I have a 1TB external hard drive that I recently formatted to NTFS. It was mounting on my Ubuntu 11.10 fine until just now. I didn't make any changes to affect my OS or my exhdd.

The error that I get is:

Error mounting: mount exited with exit code 13: $MFTMirr does not match $MFT (record 0).
Failed to mount '/dev/sdb2': Input/output error
NTFS is either inconsistent, or there is a hardware fault, or it's a
SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows
then reboot into Windows twice. The usage of the /f parameter is very
important! If the device is a SoftRAID/FakeRAID then first activate
it and mount a different device under the /dev/mapper/ directory, (e.g.
/dev/mapper/nvidia_eahaabcc1). Please see the 'dmraid' documentation
for more details.

I did read this and this. But neither helped.

I tried installing ntfsfix but no such package exists anymore. I have never used this HDD on a windows machine. If I need to use an other machine to do stuff to fix this, I have access to a mac.

Any advice?

This is my sudo fdisk -l output: What in the world is GPT? I didn't do that. It used to be NTFS.

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000586fb

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2148   961320312   480659082+  83  Linux
/dev/sda2       961320313   976773167     7726427+   5  Extended
/dev/sda5       961320314   976773167     7726427   83  Linux

WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xcfd88605

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1  1953525167   976762583+  ee  GPT

I find that flash videos are extremely choppy (in firefox) or are really sped up as if on fast forward (on chrome) when my Ubuntu 11.10 has been ON for more than a day or so. Usually restarting the computer helps.

My flash version is: 11,2,202,238 Is there any process that I can turn off and then turn on instead of rebooting my computer?

I tried this to no avail: YouTube movies are playing too fast with chrome

This is a recurring problem and occurs a few times a week.

I have an external hard drive which is hfs+. Every couple of weeks, for no obviuous reason, when I mount it by pluggin it in to my Ubuntu 11.10, it is read only and I can't copy any files into it.

I gksudo nautlius and change the ownership and it magically works in some time. But returns to the read only state soon in a few hours-days without any rhyme or reason.

Right now my fstab doesn't have any entry for my hard drive. What gives? What in the world is going on with Linux/HFS+? This is frustrating. I can't reformat my hard drive because I have almost a terrabyte of data in it and no receptacle to hold it while I reformat it.

I still can't seem to play movie DVDs on my Ubuntu 11.10 even after installing restricted extras and after trying this

This[a] is the error message that I get with movie player. VLC doesn't play the DVD either.

What gives

[a]Could not read DVD. This may be because the DVD is encrypted and a DVD decryption library is not installed.

I started receiving this error recently when I hibernate my Ubuntu 11.10:

CPU 4: Package power limit motications (total events: 988) etc for all my 8 cpus/threads.

My configuration is such with i5/8gb ram. What does this error mean? overheating?

I have a script that reminds me to restart my computer if uptime is more than, say 3 days (although its set to 0 days now just to check if the script is running as my computer has been up only over a day..).

I realize it isn't the most elegant script but I am trying! :)

#!/bin/bash

up=$(uptime | grep "day" > /home/username/uptime.foo && awk < /home/username/uptime.foo '{ print $3 }')

[[ $up -gt 0 ]] && xmessage -center "Restart!"

I have made it executable by chmod + x checkup.sh and it works fine when I run it fro the terminal via ./checkup.sh

My crontab entry for this script is:

46 14 * * * /home/username/Desktop/./checkup.sh

So it runs at 14:46hrs daily...

So... I am thinking it should run, unless I didn't something really silly. Also, do you think it's ok to move this bash script to /bin?

I used FFmpeg to extract portion (5 seconds) of a video like this:

ffmpeg -ss 00:30:00 -t 00:00:05 -i original.avi cut1.avi

and also like this:

ffmpeg -ss 1800 -t 5 -i original.avi cut1.avi

But what FFmpeg did was create a file starting at 00:30:00 and included the rest of the file instead of just 5 seconds. So instead of having a 5 second video clip, I now have the whole file except the first 30 minutes.

What went wrong?

I tried this with mencoder as well -- same result.

EDIT 1

Strangely, this worked on OS X....

EDIT 2

After rebooting Ubuntu, I found that FFmpeg worked fine. What process was turned off that did this though?

I get a bunch of error messages when I run crontab -e

Here are the error messages.

And here is my crontab file under `/usr/bin/':

# /etc/crontab: system-wide crontab
# Unlike any other crontab you don't have to run the `crontab'
# command to install the new version when you edit this file
# and files in /etc/cron.d. These files also have username fields,
# that none of the other crontabs do.

SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

# m h dom mon dow user  command
17 *    * * *   root    cd / && run-parts --report /etc/cron.hourly
25 6    * * *   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
47 6    * * 7   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
52 6    1 * *   root    test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )
30 *    * * *   root    rsync /home/dnaneet/Downloads/*.pdf /home/dnaneet/Downloads/pdfs/
#

I notice that the last task ('rsync') NEVER RUNS! Why is this happening? What did I do wrong?

Running Ubuntu 11.10/Bash. I have read this... Am I missing a shebang? And I don't know if my anacron jobs run.

Edit 1

In light of Masi's comment, I commented out lines 17 thru 25 of my crontab file with #.

Now when I run sudo crontab -e, all I get is:

/usr/bin/crontab: 11: 17: not found
/usr/bin/crontab: 12: 25: not found

(gedit:4301): Gtk-WARNING **: Attempting to store changes into `/root/.local/share/recently-used.xbel', but failed: Failed to create

file '/root/.local/share/recently-used.xbel.GOHVBW': No such file or directory

(gedit:4301): Gtk-WARNING **: Attempting to set the permissions of `/root/.local/share/recently-used.xbel', but failed: No such file or

directory

What in the world?

I've had this problem before and now it's struck me again and with full force!

Here are the details of my hard drive:

• 1 TB, HFS+ type partition mounted at /dev/sdb2
• Doesn't have write access for some reason (I tried copying files to it and it wouldn't take)
• chown my-user-name /media/hdd-name/* didn't work
• This was not required as journaling was already turned off.
• This has never worked.

What gives? What should I do?

EDIT 1

In /media when I run ls -l, this is what shows up for attributes for my external hdd:

drwxrwxrwx 1 99 99 24 2012-02-24 12:42 Untitled 1

Where Untitled 1 is the (clever) name for my external hdd... Who is the "99" bloke? :P

Any thoughts?

SOLUTION!!!

Yippeee!!!

chown -Rf dnaneet:dnaneet /path/to/folder/

Please do leave any comments, thoughts/feedbacks pertinent to this solution...

I am reading this right now to get better informed about sharing data between OS's...

This is what I did (as per a few discussions on this website)

mail -s "hi" [email protected] < test.txt

Where text.txt has the message.

I checked to see if mail did exist and it does at /usr/bin/mail

What am I missing? Is there a daemon that must be running? Is there more to this?

I am running Ubuntu 11.10

I am having strange issues with sound and volume with Ubuntu 11.10

I've noticed very often, especially when I get my computer out of sleep, it lacks sound even though the volume slider is cranked all the way up, but when I plug my headphones in and then take them out, it seems to kick start my sound back!

What gives?

What daemon in /etc/int.d needs to be restared with the restart command to fix this?

I have the following in my init.d folder

/etc/init.d/alsa-restore and /etc/init.d/alsa-store

Also, my start up Ubuntu sound doesn't play either....

I did read the several posts available here on "changing ownership of read-only file systems" but they don't seem to help me.

My external hard drive (which I had previously formatted in OS X and used on it for over a year) doesn't allow me to copy anything from/on to it FROM my Ubuntu 11.10

It says that the file system is read only when I try this:

sudo chown -R my-user-name /"Untitled 1"

Where "Untitled 1" is the name of the external hdd.

Any suggestions?

Even getting into nautilius with sudo nautilius to change the ownership didn't work.

(on a side note, what is nautilius anyway? I know I can google THAT)

What should I do now?

I accidentally deleted my .bashrc file in Ubuntu 11.10. I think I restored it but I have two major issues now:

• Everything that I type has a red squiggly line under it in this field and the suggestion is a german word.

• My crontab file is completely garbled and looks like this:

  \00\00\00\00\00\00\00\00\00\00\00\00\00\008\00\00\00\00\00\008@\00\00\00\00\008@\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00@\00\00\00\00\00\00\00@\00\00\00\00\00tw\00\00\00\00\00\00tw\00\00\00\00\00\00\00\00 \00\00\00\00\00\00\00\00\00\00\00(~\00\00\00\00\00\00(~\00\00\00\00\00(~\00\00\00\00\00\00\00\00\00\00\00H\00\00\00\00\00\00\00\00 \00\00\00\00\00\00\00\00\00\00\00P~\00\00\00\00\00\00P~\00\00\00\00\00P~\00\00\00\00\00\90\00\00\00\00\00\00\90\00\00\00\00\00\00\00\00\00\00

HELP!!!! I am new at Ubuntu and don't know what to do. Please don't tell me to reinstall because I don't know how to. I got this computer from system76 with Ubuntu installed in it.