General :: Can PATH Statement Be Used With Python In Ubuntu 9.10?
Oct 10, 2010
On Ubuntu 9.10 I installed Python 3.1.1 successfully with Synaptic Package Manager. However the Python interpreter cannot find my scripts, currently in /home/dave/pycode. This appends _temporarily_ but python remains clueless about location of my scripts. Searched Internet and some speak of .rc or .bashrc or .profile..files. Found some of these and opened with Komodo : they are Linux script files and I am clueless as to how to modify.Currently I can import my scripts only if I change to the /pycode dir before running.Lutz's Python book says to change PATH file - Ha .Sobell's "A practical Guide to Ubuntu Linux" is no help. Ubuntu's own on line help is worth less than a fart in a hurricane. Ubuntu's gedit would not even open bash.bashrc.
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Aug 7, 2011
I have multiple drives and software that defaults to my primary drive. I want to change preferences to use my second drive.This is the current path "/home/guy/dvdrip-data" my second drive is named "2Internal".How do I properly format the path statement to use the second drive?
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Nov 20, 2009
I'm trying to write a script in python to extract data from maillogs in gz format. I wrote a shell script but i now want to do this in python, as thats the preferred method where i work. anyway does anyone know how to specify directory paths for example the maillogs exist in /var/log so i want the script to go to that directory would LOG_DIR="/var/log/" work?
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Jul 19, 2011
I am running Debian Squeeze, 64-bit.I would like to try my hand at bash scripting. So at the author's suggestion (first chapter of Chris F. A. Johnson, Pro Bash Scripting from apress) I created a /bin directory in my home directory. So now I would like to modify my PATH statement so that when I run a script from my bin directory my shell will find it.I did that. He then says that I should add this to ".bash_profile, .bashrc, or .profile depending on how bash is invoked." The find command is unable to locate any of these files. So I searched the forum, found the link above and tried to follow that. No luck so I assume that how Debian handles PATH statements has changed since that post?
I also have checked the wiki and worked Google as hard as I know how to do.Very simply where the heck is my PATH statement and how do I modify it?
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Jun 23, 2010
I have been trying to install the NumPy package for Python on to my home directory, as I run as part of a server and do not have permissions to install new packages in the Linux server.
I have set up Python in my home directory, and have configured ~/.bash_profile to find my local Python (which works, confirmed by testing).
However, when I attempt to install the NumPy package, I get the message error: could not create '/usr/local/lib/python2.6': Permission denied Which I find strange because I do not see why it would need to install files anywhere except my local Python directory.
how I might be able to specify the directory in which files are installed?
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Aug 11, 2010
How do I set the PYTHONPATH for the root user only? Or at least add to the python path for the root user? I need to read from the /var/log/apache2/access.log in my python script, so I need to use sudo for my script to be able to read from it.I tried setting the PYTHONPATH in /root/.bashrc but that didn't work. I don't want to use a .pth file because I don't want the directory to be on the path for all users due to import collisions.
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Feb 1, 2010
When I run openshot it spits out this:
Code:
Added /usr/share/openshot to system path
OpenShot (version 1.0.0)
*** ERROR: MLT Python bindings failed to import ***
*** ERROR: MLT Python bindings failed to import ***
Error: OpenShot has not been installed in the Python path.
(Both the site-packages and /usr/share/openshot folders were checked)
Use the following command to install OpenShot:
$ sudo python setup.py install
Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/lib/python2.6/threading.py", line 525, in __bootstrap_inner self.run()
File "/usr/share/openshot/classes/thumbnail.py", line 174, in run mlt.Factory().init()
NameError: global name 'mlt' is not defined
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Jun 28, 2010
We are building our C++ project in Kdevelop IDE. Every time we run "Run Configure" from the "Build" menu, a file named "libtool" gets automatically generated. This file contains a statement as "ECHO="echo"".f we run "Automake", without modifying the "libtool" the system hangs and theputer needs to be restarted.Therefore every time we run "Run Configure" we need to include the line "echo="echo"" below the statement "ECHO="echo"" manually.I think a script can be written which does the above on its own.I am not a shell script programmer, I know the good tutorials for shell scripts are available on the net, but learning scripting only for this task would be time-consuming and painful.
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Oct 6, 2010
I've written a simple perl code to learn switches in perl.My code is pasted below,
#!/usr/bin/perl
$opt = 1;
switch($opt) {
[code]...
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Jan 16, 2011
I found the following function in /etc/profile file.
[Code]...
1. I dont undestand what "if ! echo $PATH | /bin/grep -qE "(^|:)$1($|:)"" this if statement actually comapres??
2. Also what is the difference between PATH=$PATH:$1 & PATH=$1:$PATH
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Nov 24, 2010
I have just installed SABnzb application in my home folder. The executable file is SABnzb.py When I run the command in the Konsole # python SABnzb.py I have this Quote: python: can't open file 'SABnzbd.py': [Errno 2] No such file or directory
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Oct 27, 2010
in ubuntu 10.10, I have installed python 2.7. I would like to use apt-get to install packages to this version of python but I haven't been able to figure out howThings I have tried without success:changing the symlink at /usr/bin/python to point to /usr/bin/python2.7 - even after doing this apt-get still installs stuff to python2.6.Set up python2.7 as the primary alternative using update-alternatives - doesn't work
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Oct 8, 2010
I use this command:
Code:
find ./ -atime +360
to figure out the files that haven't been accessed since 360 days. The command above will return results like this:
Code:
/uploads/2010/02/some-file-name.ext
/uploads/2009/08/another-file-name.ext
... etc
I'm taking here about tins of directories, thousands of files. I'm looking to find a command that makes me able to move the results above to another path, and to create that path once it doesn't exist like below:
Code:
mv /uploads/2010/02/some-file-name.ext /old-files/uploads/2010/02/some-file-name.ext
But I want the executed command to create this path
Code:
/old-files/uploads/2010/02/
If it doesn't exist.
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Feb 21, 2011
I have a program that takes a relative path as input appends it to a some path string to get the actual path.
Now all I can input is the relative path. So if I want to go one level above my input will be ../mypath.
If I know the depth of the path used internally, I can use .. as many times to go to the root directory and then give the absolute path. But suppose I do not know the depth of the directory, can I construct a relative path string such that it considers it as a relative path. One way could be to have enough .. in the path string so that I can force an absolute path for some maximum depth of path.
Is there some path string syntax that I am not aware of but can achieve this?
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Apr 26, 2011
Experimenting with shell variables, accidentally deleted the path variable how could I return to the original path value. What kinds of problems will I have if I don't have a path variable.
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Sep 14, 2009
I have a path c:windowsackup I need this string to be changed into /windows/back/up I used the command -bash-3.00$ echo windackup | sed 's/\//g' but the output is windbackup
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May 31, 2011
Current script:-
prefix=user@my-server:
find . -depth -type d -name .git -printf '%h�' | while read -d "" path ; do (
cd "$path" || exit $?
[code]....
How shall i go about changing the absolute path to relative path, so that /home/git/mirror/android/adb/ndk.git gets converted to /mirror/android/adb/ndk.git //echo <command> "$prefix$PWD.git" ?? - anything for relative path?
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Jul 12, 2010
the script below prints the pwd of where I want to be. after the fi it puts me back at the original dir. just writing these scripts to understand what's going on.
#! /bin/bash
if
[ -d mydir ]
then
cd mydir/ && pwd
fi
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Feb 2, 2011
I want to have an if statement that does multiple things:
Code:
if [....] ; then
1=...
2=...
[code]....
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Jun 6, 2011
I'm a bit stuck with IF statement. There is the code:
#!/bin/bash
# Variables
VAR1=test
VAR2="echo $VAR1"
# Case 1
echo Case 1
if [ test == test ]; then
echo "equal"
else
echo "not equal"
fi;
echo ""
# Case 2
echo Case 2
if [ "VAR1" == test ]; then
echo "equal"
else
echo "not equal"
fi;
echo ""
# Case 3
echo Case 3
if [ "VAR2" == test ]; then
echo "equal"
else
echo "not equal"
fi;
echo ""
When executed, why case "2" and "3" differs from case "1"? Where am I wrong and how to solve this trouble? (my aim is to get "equal" from all cases).
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Jul 11, 2010
I want to have the System Bell ring when a process is over say a download. First I created a file named 'beep' that plays the System Bell. Because the System Bell rings by hitting cntrl-G the 'beep' file looks like this.
Code:
echo ^G
I then give the file owner execute permission. I know that this command would serve my purpose.
Code:
[URL]
However I want to sharpen my Bash programming skills. I wanted to write the Bash script along the following logic and with the fewest lines possible. Not really a script, I want to insert this short script via command line instead of a file. Let's say the download has commenced and the PID = 16666.
Code:
until ps -p 16666
do
/root/beep
done
Now obviously 'ps -p 16666' will already evaluate to true. My question is, is there a way to maybe enclose 'ps -p 16666' and prepend some operator that inverts the condition to where until 'ps -p 16666' evaluates to false then run /root/beep?
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May 14, 2010
I need to to write a bash script using an If...Then...Else statement that will accept a day of the week from the command line what do I do or where do I go.
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Mar 15, 2010
I am facing problem with the following script. Could you please look into this.echo 'Enter Staging number' case $STGNUM in
1)
for i in {'stg1-greg','stg1-marsha','stg1-peter','stg1-jan','stg2-greg','stg2-marsha','stg2-peter','stg2-jan'};do echo $i; ssh $i sudo -u dev /opt/usr/apps/workflow/stopwf.sh;done;
[code]....
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Sep 13, 2010
I am trying to create a "GUI File Transfer " Application , for transferring the files within the network. For That I will obtain User name, Password through the GUI, I will have to append username and password in a single line and run it . I am facing difficulties in exploring the "command",
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Jan 21, 2010
right now i'm doing a find . -type d -iname "z*" to find all folders who's name starts with z or Z.
Is there a way I could with one command find all folders who's name starts with the letters M through Z, without having to do the same command over and over and just changing the letter each time?
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Apr 23, 2011
as the title,I want learn how it works.
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Apr 21, 2010
Here's the bash script:
Code:
FILES="/usr/sbin/accept
/usr/sbin/pwck
/usr/sbin/chroot
/usr/bin/fakefile
[code]....
Notice the extra" file size" lines in there? What's causing that? I'm trying to learn more bash skills. I have no experience with awk because I have been unable to understand it's basic necessity. But I thought maybe if I try it with some test scripts I might become more interested in using it more and expand my very limited capabilities.
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May 2, 2011
I am trying to use sed command to repalce one string with other but somehow replacement string contains forwards slash hence getting the error statement garbled!
[Code]...
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May 6, 2011
Im a bit stuck with a simple script that im practicing with... im trying to get my head around some simple scripting. Basically i want to write a script that will work as below: It will ask the user to enter their userid. If its correct it will say 'Correct' If its the wrong id (But the ID exists in /etc/passwd) then it will say 'incorrect' If its not a valid userid it will say 'doesnt exist'. What i have so far is:
[Code]...
# If the user enters their own userid they will get a comment saying 'correct' $LOGNAME) echo "Correct";;
# If they enter another users ID (That exists in the /etc/passwd), then they get a message to say 'incorrect userid used'. Im not sure what i need to do here to get it to check the /etc/passwd to see if the input exists in there.... im guessing some kind of simple 'if' statement to say ---- "if 'input' exists in /etc/passwd then echo "incorrect userid used"
# If its entered incorrectly and not a valid ID then they will get this comment. Again, im guessing this part would be similar to te above option..... *) echo "not a valid ID";;
Ive managed to work out how the basic Case staements work, but to add a conditional statement based on the input, i just cant figure out. I have tried looking on google, and found some help but it doesnt really explain how i check the input against the /etc/passwd.
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Jul 12, 2011
kernel 2.6.21.5, slackware 12.0
GNU bash 3.1.17
Code:
As you can see, /usr/local/bin is in the path. However, bash does not look for nasm in /usr/local/bin.
If I am root, things go well:
Code:
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