I am using RHEL 5.0 and I have some trouble with a CSV file.
What I need to do is to grab all the elements from the 3rd column and place them each on a new line in a different (new) file.
For example, if the CSV file is code...
I tried to threat each line as a string and grab the 3rd element, but for some reason it fail.
how to make an interactive bash script that reads option from a file?
Something like this:
1 : $HOME/scripts/script1.sh
2 : $HOME/scripts/script2.sh
...
The script should look something like this:
Choose an option:
1 : $HOME/scripts/script1.sh
2 : $HOME/scripts/script2.sh
...
And the more options I add to the file the script should be able to detect them and when I choose 1 for example the first script should be executed and so on for the rest.
What I plan to do is, create a duplicate file of a text file, and then append some text into the new text file.
View 1 Replies View Relatedcan any body tell me how to creat a log file in linux...when i run the script the details must go to log file...
View 8 Replies View RelatedI am using NetBSD-5.1.1. I wanted to know what happens internally when we create a file in linux. ( In general )?The header file STDIO.H present in "src/include/stdio.h" contains a "FILE" structure with various members like _p, _cookie, etc.2. I wanted to know how does internally memory gets allocated for them.?
View 1 Replies View RelatedI have a file with 5000 lines. it is a list of books authors, series and titles. all lines start with the author names, than there is a dash (-) than the series name, a dash again and the title of the book.
The problem I encounter is that sometime there is a series, sometime not, and as I try to enter this list in a database, I wanted to create a cvs file to import into mysql.
ex:
The best would be to be able to add in the second line, a "space dash space" just after the author name, but how to make sure it does not do it to the first line as well.
If I could separate all line with 2 dash, (grep ?) then I would be able to do a simple replace, and change the single dash into two.
I having the following awk line in a script, is it possible to modify the script so that it create a the directory if it dosnt exist (similar to mkdir -p) awk -v datum="$DATUM" -v workingdir="$workingdir" '{ sub("\[.*","",$5); print > workingdir"/"datum "/" $5;}' $1
View 1 Replies View Relatedis there a way to save/create a file with fopen so the file is in the user home directory.Normally I'd do fopen("/home/me/myfile.... but me might change from one user to another. So can I so some sort of switch so it saves to whoever is using.
View 5 Replies View RelatedLets start with useful information:I need to create a hidden file for windows/linux using my c++ program.The file will be created on a mp3 player (fat32 file system) and the name will be ".myFile", so the file will appear hidden onux system (period before the name).The problem:Using windows I'm able to see this file, cause the "hidden" attribute is not set.
On Windows API there's a function to do that (CreateFile), then I was trying to find a compatible function to set the hidden attribute, but there's no success until now.Could someone show me the way? There's a program to change these attributes: mattribI will try (again) to find the source code, if someone knows where could I find it
I am using GTK and C and on my application I have a Drag and drop feature.
Code: Select allicon_view = gtk_icon_view_new_with_model(create_and_fill_model(pALP));
g_object_unref(pALP->list_store); /* destroy model automatically with view */
gtk_icon_view_set_selection_mode(GTK_ICON_VIEW(icon_view), GTK_SELECTION_SINGLE);
gtk_icon_view_set_reorderable(GTK_ICON_VIEW(icon_view), TRUE);
gtk_icon_view_set_text_column(GTK_ICON_VIEW(icon_view), COL_DISPLAY_NAME);
[Code] ....
The drag and drop works fine but when I exit the application and enter again, the changes of the drops are not saved, meaning the new location is not saved. I understand that in order to save the location of the drops I need to create a menu file and write some xml, But how do I do this? it there another way?
I've written an Expect script that assists with change management on Cisco devices. The script creates log files for pre-change, the change itself, and post-change. Each log and its commands is triggered by a ! command. For example:
Code:
./dochange.exp hostname
<script spawns bash, user SSHes to hostname>
!PRE
[code]....
All of this works fine. My big hair-pulling hiccup is that the resulting log files are filled with raw backspace characters! I am using log_file to log the output from the script. I stop and restart logging with a new file when needed. However, the log files are pretty much unusable. After doing some research, it looks like log_file sends output to the file in real-time, unbuffered. When I hit a key, it's immediately sent to the log. What I would like is for only the resulting string to go to the log. If I start to type 'reload' and instead type 'show run', I don't want 'reload' to be listed in the log at all.
i am trying to generate a linux executable data (bin data) from my java source code.
View 4 Replies View RelatedI need a script that can do this: A script that searches all directories and subdirectories for .html files When a .html file is found it creates a index.html file in that folder. It then edits the index.html file and inserts links to all of the .html files that are in that folder into the body. If no .html files are found, it searches for folders. It then creates a index.html file with links to all of the folders.
View 4 Replies View RelatedI am using C. I have a fuction that returns a string
Code:
I need to format this string so that I can create a text file like so:
So I'm trying:
Code:
But I get errors like:
I'm running Apache on Centos 5.5, with active SELinux, and I'm having trouble getting my Perl script to write a file that doesn't yet exist to a folder which has the proper security context.
View 9 Replies View RelatedI am working on a script to convert a comma seperated text file into html code line by line. The text file is like so:
Code:
link url, image url, description and I want it to output this:
Code:
<td><a href=�link url�><img src="image url" alt=�description" /></a></td>
Here is what I have so far:
Code:
#!/bin/bash
var1='<td><a href=
var2='><img src="'
var3='" alt=�thumbnail image" /></a></td>'
[code].....
It puts the entire line into the html so its no good. I'll probably need to use awk (I think).
My question deals with me creating a name pipe (file) in the my /group directory called chat.I then have to write a script to read from the named pipe and save data into a file called chat.log until the words End of File are passed to the program.
-When I created the named pipe file (chat) I used the mknod chat p command..Is this the correct command to create a named pipe file? -Then I'm having trouble with my script and how to make it run until the words End of File are entered in. This is what I have so far.
I've found myself in the situation where I need to create a menu in gnome/kde for a directory structure full of documents.The directory structure looks like this:
Code:
DOCS/
.. REFERENCES/
[code]...
I have a csv file like, having HDR segment and multiple LIN01 segment in each line:like
Here i want to split file in two, one having LIN01 segment which have LR at end, and one which have LF at end in LIN01 segment.
Is it possible to created awk or shell script for this?
I am trying to create a regular expression in perl to remove all the delimiters (|) from a file. I was also thinking might I be able to use tr?
View 11 Replies View RelatedI'm starting bash shell script and I'm looping without any solution.
I'm trying to find some files under a folder hierarchy and in case of errors moving these files to a destination folder under the same hierarchy recreating this hierarchy if not exists.
Finding all ._* files under /src and moving them to /dest recreating folder1 or the others which contains ._* files but without moving files which does not correspond to the pattern.
Code:
I tried find command and I'am getting all needed files
Code:
But I don't know how to use the output to get the parent folder of files which are found to
1- create folder with mkdir -p /dest/folder1 or /dest/folder1/folder4
2- move found files from /src/... to /dest/... with rm command
I'm working on a find command as this trying to do all in the same line but ... little lost
Code:
I have a project due for my Intro to C++ class and we are suppose to generate a file listing that will take an input of a C++ source code with .cpp extension and make a copy of it with a .lst extention that will have a line number preceding each and every line.
View 12 Replies View RelatedI plugged in my USb drive into my computer yesterday and tried to delete a folder. I was unable to do so and got the following message
Cannot move file to trash, do you want to delete immediately? The file "my file" cannot be moved to the trash. Show Details Unable to create trashing info file: Read-only file system
So when I click on delete I get another error message:
Error while deleting.
There was an error deleting Case Study Database. Show Details Error removing file: Read-only file system
At this point I can only click on Skip, Skip All, or Cancel.
I have not changed anything on the stick recently so I dont know what is causing the problem.
Is there any program/script that can create a torrent file for each file in a directory? I have been looking all over but can't seem to find anything of the sort. I have 700+ files I REALLY don't want to make my self.
View 1 Replies View RelatedI want to create a logon script (or somesuch) that creates a file (if it doesn't already exist) and checks the file for some info otherwise. If it finds a given trigger in that file, it logs into a local database and does some operations.
Now my problem isn't with creating that file or even getting it to function as a logon script -- it's with permissions. After the logon script creates the file, I want that user to have read access on it ONLY. Further, I don't want to give the user any kind of root access so that they could do the database operations in question or chown/chmod the file.
What's the best practice here? I'm noticing that whenever the script runs (in .bashrc right now) the script runs with the current user's permissions. Ideally, I'd like to make it so the login script can run at a higher level of permissions, (higher than the user has). Is this even possible? What's the best way to do this?
I was just testing specifying limit on file size to a user and have added the following to /etc/security/limits.conf bob soft fsize 100 This basically should have said not to allow bob to create anyfile greater than 100Kb in size.
But the interesting thing is, if bob already has any file which is greater than 100Kb in size, it even doesn't allow to log him into the system both from console and SSH. Also nothing is logged in logs.. How do I configure it so that, bob can login to the system even though he has any file greater than 100Kb (but doesn't allow him to create file which are greater than 100Kb) ??
I want to back up an entire Linux system on a 3Tb external Western DIgital USB3 drive.
I do not want to reformat it from what it is, apparemtly NTFS.
Is there a utility that can act like a file manager like mc, that will permit me to create an ever expanding (to 320Gb) TAR file that will retain all the original file permissions. I have had nothing but disappointment with Linux backup utils with a FAT32 external drive, and I am concerned if I just try an tar the entire drive at once, with around 3 million files, I might run out of memory.
All my torrents go to my home/username/Download/ folder, I could read/write yesterday but now I cant even copy the files to a flash drive.The error i get is "Cannot create regular file '/home/username/Download/file' : Read only file system.
View 14 Replies View RelatedI am testing my ftp server configuration.Anonymous download works , however anonymous upload does not.I am getting the following error message from both Windows and Linux 5.4clients : 553 cannot create the file.And i am running Fedore 12.
View 3 Replies View RelatedI have iMac 2.4GHz with rEFIT installed. I installed Unity on one of the partition. Kernel is still 2.6.38.8. I am getting error message when I run the command
sudo gedit /etc/x11/xorg.conf
The error message is
(gedit:2139): 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.AC7YXV': No such file or directory
(gedit:2139): Gtk-WARNING **: Attempting to set the permissions of `/root/.local/share/recently-used.xbel', but failed: No such file or directory
