Fedora :: Change The Releasever Variable ?
Jul 31, 2010
I was doing a preupgrade from f12 to f13. That was interrupted by a power cut. When I tried to redo it by booting from the grub option, it failed (can't remember the error). I then re-ran preupgrade, but got the "the root for the previously installed system was not found" error even though the UUID was correct and even when I referenced the partion by device - /dev/sda14.
So I decided to go old school:
1. yum update
2. change the repos manually to reference f13
3. yum update
So as it stands these are seemingly the only remaining f12 packages
Code:
But i am guessing due to the interrupted preupgrade, the releasever variable has not been updated. How can I manually do that?
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Jun 10, 2010
I was told that this command would upgrade from 12 to 13, while avoiding the boot space problem.
Everything seemed to go well, - all 1691 rpms downloaded to: /var/cache/yum/x86_64/13/fedora/packages/zip-3.0-1.fc13.x86_64.rpm, and then halted with the following message:
I'm not exactly a noobe, but this leaves me clueless. Can I salvage the upgrade?
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Jun 24, 2011
Just upgraded Fedora 12->13 using yum, on my way to Fedora 15.After upgrade to 13, I rebooted, and all is fine.Began upgrade from 13->14. I get the following errors from yum --releasever=14 distro-sync:
Code:
Error: Package rhpl-0.221-2.i686 (@anaconda-InstallationRepo-200911081854.i386/12)
Requires: libpython2.6.so.1.0
[code].....
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Nov 26, 2010
How to change string variable in awk? for example, I parse with awk script text file named some_name_with_extension.txt
I want to print only some_name in my script
Code:
....
varCompName = FILENAME
print varCompName
How to put not all symbols from FILENAME to variable?
This make my day
In windows I used some of next
Code:
%my_var:~0,-2%
would extract all but the last 2 characters of the my_var variable.
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Apr 24, 2010
I am about to move my scripts to the next generation level, so I need some help I am stuck in varying my variable names in a loop. For example:
for user in ben dorothy mike pat
do
[ -r /home/$user ] && let "$user"check=1 || let "$user"check=0
[code]...
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Mar 12, 2011
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In terminal:
normal user:
Code:
ataias@ataias-notebook:~/Downloads$ echo $PATH
/usr/local/bin:/bin:/usr/bin
super user:
Code:
root@ataias-notebook:~# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/usr/sbin:/bin:/usr/bin
As many commands are in /sbin/, root can use them without writing "/sbin/" but I can't do the same cause it's not in my path.
while root do this:
Code:
shutdown -h now
I should do:
Code:
sudo /sbin/shutdown -h now
and I want to use only
Code:
sudo shutdown -h now
I want to change my user's path variable to make it equal to root's path. how to change it? I don't know many things of shell still.
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Oct 16, 2010
I want to add my current working directory to the PATH variable and make it permanant in my .bash_profile so I can run my testscript without using the ./ charactors.can this be done?
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Nov 26, 2010
How to change string variable in awk? for example, I parse with awk script text file named some_name_with_extension.txt
I want to print only some_name in my script
Code:
....
varCompName = FILENAME
print varCompName
How to put not all symbols from FILENAME to variable?
[Code].....
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Aug 7, 2010
I want to display 4 options using the case command and refresh the screen when options 1 and 2 are chosen (no changes to the options and you get asked again to chose option), but give a message for option 3 and exit on option 4. I set this up with the script below, but choosing option 1 works and choosing option 2 exits the script.
Code:
#!/bin/bash
#testing options
Option="0"
[code]....
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Jun 5, 2011
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Feb 2, 2011
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Feb 11, 2011
I would like to put a variable in the $PS1 prompt that will change each time a command is run. I want the color of the $PS1 prompt to change each time a command is run.I know that I can do this:
Code:
PS1="h@w # "
## "#" is changes every time a command is run
[code]....
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Aug 21, 2009
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For example:
Code:
Changing $files to "$files" eliminate these problems but causes that whole content of variable is treated as one string (one execution of loop).
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Feb 17, 2011
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Apr 7, 2010
my script has a variable which comes in the form +00.00 +0.00 -00.00 or -0.00 (the numbers can be any in that form) for any that have a + symbol I need to remove the +, but if it has a - symbol it needs to stay.
i need to make a new variable with the string from the old variable btut without any plus sign. I have tried a lot of different ways with no success, each thing I tried either left the + or removed the entire string. I think this should work but doesn't
foo=+12.40
bar=${foo#+}
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Apr 16, 2011
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Jun 10, 2009
I have a text file i that has a mailTo: NAME in it. In a bash script i need to extract NAME and put it in a $variable to use. How do i do this?
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Apr 25, 2011
how I can search within a variable and assign the results to a new variable. I'll use the following as an example -
cars="Audi BMW Cadillac Chevy Dodge Ferrari Ford Mercedes"
list=`echo ${cars} | egrep -o '<A?+|<C+'`
with the echo command I get the following output assigned to list -
A
C
C
What I'd like to get for output is -
Audi
Cadillac
Chevy
how I could do this regardless of upper/lower case letters?
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Apr 28, 2010
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Jul 25, 2010
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objectnames2=`ls -a`
etc.
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Dec 27, 2010
I am trying to alter the character position of residue numbers above 999 in a pdb file.The following script is an attempt to:1) Get all unique pdb residue numbers (in column 5) using awk and assign it to a variable i.2) Loop through all the values in $i and if it is greater than 999, shift that number one character to the right using sed.However, the script only manages to alter the final residue numberCould anyone please advise how I can loop through all values in $i and shift it one character to the right?
#!/bin/bash
# Script to alter position of residue number in pdb file for resid above 999
i=$(awk '{print $5}' wt-test.pdb | uniq)
[code]...
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Mar 17, 2011
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Code:
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Mar 18, 2009
I have one question.
Assumed I have have a variable $userlist, it has the following contents:
brownj
smithk
smithk2
smithk3
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hynesp2
leeb
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Sep 10, 2010
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Nov 26, 2009
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Mar 15, 2010
Originally Posted by Gekitsuu you should be able to do NEWSTRING=$STRING1$STRING2 it works but i can't use it for creating a path variable / file name.
e.g.
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cat $STRING1$STRING2 will not work.
so how to get this working?
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Sep 25, 2009
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