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Suppose that I have a string "one:#red two:#yellow three:#gr'een four:#blu^e" and I want to replace the pattern :# and the following characters in the word with nothing. The output string should look...

Hi,

Is there a way I can kill all the child processes of a process, given its process id.

Many thanks in advance.
J.

Thanks for the reply. But, it just went above my head...sorry :(
Are there any pointers to this or could you make it a little more simpler
What is the parent process in my case ? PID corresponding...

I am trying to submit a background process on a remote machine using

ssh -f remote-host "sh my-process.sh"

Normally the process will be submitted and control returned to the local machine (even...

I want to install Ubuntu 7.10 and I have ISO image ubuntu-7.10-desktop-i386.iso .

How can I convert to a bootable CD on linux or on windows.

Thanks,
J.

I am trying to install linux Linux on my laptop which already as windows XP.
My choices are Debian (coz I use everyday at work) and Ubuntu (coz I used it once and found attractive). The numbers in...

I am using tcshell.

I would like to log all the commands I type (on the terminal) to a file. The command "history" does this only for current terminal only. I typically keep around 10 terminals open.

Thanks,
j
...

awk '{printf ("%s\t", $1) ;}' bla.txt

or

cat bla.txt | cut -d ' ' -f 1 | tr -s '\012' '\011'

Hope it helps
J.

I am not sure I completely understand what you want, but you can use tr for the same purpose

cat $input_file | tr '\012' '\011'

How do I find the rpm of my hard disc on linux.

Many thanks in advance.
J.

Hi,

In the new version of VIM that I am using, the sections, subsections are collapsed as shown below:


+-- 36 lines: \subsection*{Aim}-------------------------

If I press space on the...

Hi cbkihong

Thanks a lot. c_str worked for me.

J.

Hi there,

I am using the STL map and I print the map using:

map <string, float> ngram_token_index ;
map <string, float>::iterator map_iter ;

//read the map
...

// print the map
for (...

awk '{if ($3 == "pattern") print $0}' your-file.txt

If the delimiter is something else like ":",

awk -F ':' '{if ($3 == "pattern") print $0}' your-file.txt

find ./ -name '*.ext' -exec compress {} ';'


I dont know what compress does but this is the way to handle large number of files...for example if you want to find the size of each file in a...

To Porter:
I just realized that I also have to lock the file while reading as well to prevent write while reading...Thanks

To Smiling Dragon:
Thanks a lot for the pointer...I tried the sample...

Hello Everyone,

I just joined this forum and this is my first post.


I would like to know how can I impliment basic read/write locks in perl. I have a database (file) which can be accessed...