Sed Command To Global Change If It Match Some Pattern

Dear all,

I recently installed, for the first time, Linux to my Lenovo X220 .
First impression is good, everything is running smooth so far :-)
I do though have ran into a wall when trying to integrate my company Outlook calendar into Thunderbird Mail.
Ubuntu 14.04 and Thunderbird 1:31.6.0 is what I have.
In our company we do use shared Outlook calendar to track and update many events on daily bases and I'm the only Linux user and would hate to give up making this work on my end. Now updating my entries via mobile phone and Ipad..
Any simple solution to this to work on my Laptop? ;-)

I need to clean-up some folder. I have a cron job which uses find command to find and delete 25 days older file.

Code:

find $FOLDER_PATH/$FOLDER -depth -regex  ^$FOLDER_PATH/$FOLDER/[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ -type d -mtime +25  -exec ls -ld {} \;   >> /tmp/deleted_folders.log

When this running it occupies 1-3% of cpu. And it may take longer time based on the folder size.

Is it ok to have find command running as cron job ?

Hi there. I have Ubuntu 14.04 installed. Actually I have been doing a lot of work in this OS for about a year. The thing I cannot still comprehend is how to find files I installed. In this particular case I need glut.h for g++ compiler. So I go here, do this command;

Code:

sudo apt-get install freeglut3-dev

And find out that I already have the newest version (which I have suspected since I recall installing it).

So, the next step is to find the glut.h file and reference it with #include command. I cannot find it anywhere. This website says it has to be he

Code:

/usr/lib/x86_64-linux-gnu/libglut*

Why's the asterisk? Is it a footnote or part of the code?

I don't seem to have /usr/ directory. I cannot find it anywhere.

How does Ubuntu directory work?

Thanks, - A.

Its plentiful documentation fails to explain how to use it. After googling all over the world and hunting down examples, it turns out they don't work as the man page indicates if you alter them in the slightest. In fact I know what I want to find, where it is, how to describe it; but the problem is getting find to list that file or those files and moreover making sense of its horrid documentation. It lists too many things. It ignores -prune. It either does nothing or too much. Its a horrible, horrible program, and you are expected to make up the difference by experimentation.

Its so complicated as to make it more worthwhile just to list every file and filter them out with other utilities. Honestly, why go through so much trouble to learn about a command that is as obfuscated as a heartpump?

Sure its great for listing all the files and directories in one subdir, but if you want to exclude multiple dirs or files forget it. Pipe it through grep.

I'm trying to figure out if find could do this. I have a folder with 1000 files. I want to delete 150 files on that folder regardless of timestamp and filename. Is there a tool, command or option on find that could do this, please let me know.

Combining mtime or ctime to find is not advisable since it will not count the files or even if there are matches, I would still need to sum up the files until I reach 150 files.

Any suggestions?

One week user of Ubuntu v15 and I have tried to install the file Python-3.5.0a1.tar gz but without success. The following points have arisen.
1). The file was downloaded. OK
2). The file was extracted to the Desktop as Python-3.5.0a1
3). Using sudu apt-get install Python-3.5.0a1, the message 'file not found'. Why not!
4). Looking into the extracted files it seems that this is a source package and therefore cannot be installed as is?
5). Finally, using the bash command 'find' it could not find the above file either.
Can someone kindly sort this out for me.
Thanks.

I am needing to know the command(s) to find and copy all files modified, within the last 90 days, of one users home directory to my home directory.

I have a shell script to find folders which are 25 days older and delete it, and put the deleted folder details into log file like this

Code:

 find /ahome/xxx/$FOLDER -type d -mtime +25  -exec ls -ld {} \;  -exec rm -rf {} \;  >> mylogfile.log

after running this command it deletes the folder and logs the folder deleted. But also print error msg
Code:

find: /ahome/prksh/dir/test: No such file or directory

How to suppress the error msg

hey guys,

Let's say I want to find out which log files have related ntp information in them. I use cat and grep to search through the files in /var/log and then export that to a file. this is the command...

# cat /var/log/* | grep ntp > /home/log.txt

The file created from this command will not include the directories the log entries are apart of. Why not? For example, if you do this same command without exporting to the /home/log.txt file it will show you in stdout which directory each log entry is in. Hope I'm making sense here. My question is, is there a clever way to export to a file in a way so that the file created is structured exactly like the stdout of the command below?

# cat /var/log/* | grep ntp

I am trying to develop a new routing protocol in ns2. Although i have given a command in tcl file that should be called from command function present in .cc file. But it is not doing so.
Could we debug this and find the point where is the problem. If yes then how ?

I have heard that there are debuggers in ns2 . But this is for tcl or c++ ....
Could any one please help me ... How can i proceed further.

Thanks for ur help