Very new to this shell scripting/Linux scripting.
subject_dir=/labs/tricam/MERIT/MERIT_0*
for subject in `ls $subject_dir` ; do
if [ ! -d $subject_dir/$subject/feat/glm2010/doublegz/SRRTA.feat ] ; then
[code]....
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.
View 3 Replies View Related$val = mkdir $directory, 755
print $val;
does't create directory but return as value '0'
[code]....
I need to walk in folder recursively in C. To change the directory, I can use chdir, but how I can get the directories of a directory?
View 3 Replies View RelatedI have made the installation of Qt4 in my Fedora/MacBookPro. It also got a first compiling and running a simple program. The point is that for the compiler to run I need to point out every time where the bin is located, as that:
$ /home/threader/kinetic/bin/qmake -project
I have tried the following, but it still doesn't work:
# script
#-----------------------------------------------------------#
# /etc/bashrc or /home/threader/.bash_profile
# config to Qt compiler
[code]....
I am programming in bash and really stuck finding directory names. I have a script to find all the .php files on my / partition which will return the whole path. Is there a way to print directory hierarchy with all those values leaving out the forward slashes.
View 10 Replies View Relatedi am in need of linux help. iam at college and i need this back/restore script to pass this final part of an assessment. i require a backup script that will not only backup but also restore files to the relevent directories. e.g. users are instructed to store all wordprocessor files in a directory named wp. so i am needing to create a backup directory and 3 directories within that and some files within the 3 directories and then back them up ot restore them. l know i should/have to do this myself by been trying to get/understand info for the last few days and came up with zero.
View 14 Replies View RelatedAlex accidentally deletes his PATH variable.what are some of the problems he may soon encounter and explain the reasons for these problems. How could he easily return PATH to its original value?
View 14 Replies View RelatedI just set up an internal mail server for my office using Postfix, Dovecot and Squirrelmail. It works great except for one tiny problem. When I send mail, I address it to user@myoffice (no .com, .net, etc) and it works perfectly. However, somewhere in my work, I screwed up and for whatever dumb reason put myoffice.net somewhere in there and now the return-path always shows up as user@myoffice.net instead of just user@myoffice. Does anyone know how to fix the return-path so that when someone clicks reply it goes to user@myoffice? I've Googled and searched here without finding my answer, apologies if it's out there and I've just failed to see it. Rest assured I have done a couple hours of searching before finally asking for help.
View 7 Replies View RelatedI'm writing a perl script to remove a test database and part of that is of course getting rid of all files. So I wrote this to do the job:
Code:
This always results in an "Could not open /u00/app/oracle/product/10.2.0/rdbms/dbs for reading: No such file or directory" (that directory is the one ending with the $spfile_dir variable) message, although that directory exists and the executing user has writing rights on it.
The same behaviour if I create the directory array like this:
Code:
The problem does not occur when one of the directories is the only element in the array though. Of course I could copy and paste that part of the script for the second directory, but I don't like that workaround.
I'm running Fedora Core 12 x86_64. I started out using the default bash shell (and customized the .bashrc, etc. as necessary) but had to switch to csh for this one scientific package that requires that shell.
The issue is that my $PATH has unwanted redundancy and I can't figure out how to fix it:
Code:
The csh shell was completely new to me so I'm sure I made a mistake somewhere.
Below are the files that might be relevant for diagnosing this problem. I don't think I touched /etc/csh.login or /etc/csh.cshrc but I might have accidentally done so.
Code:
Code:
Is there a way for me to rsync two directories comparing only filenames (and not file size, date modified, or any other criteria)?
View 2 Replies View RelatedJava applet not loading image with relative path(e.g. images/1.jpg) but loads image with absolute path(i.e. from /root/user/images/1.jpg) . This is a problem when i want to host the applet on web server
View 2 Replies View RelatedI was looking for what rehash command does and found this:
The rehash command re-computes the internal hash table of the contents of directories listed in the path environmental variable to account for new commands added.
I never knew about any internal hash tables. Why and how are they maintained?
I trying to write a UART(interfacing of serial devices) to linux machine but after I execute the following code to receive data I need to enter key (carriage return).... but I don't want to remove carriage return/enter key
[Code]....
Does anyone know how to get the path with a inode number by C programming?
Or can I get the absolute path without giving a "path" but a inode number by C?
like this: get_path(unsigned inode);
not such this function: getcwd(".", xxx);
taowuwen@gmail.com
After trying to add a directory to the PATH, I get the message that the folder doesn't exist.
Code:
i am having two small issues with a function i have made.sorry if it is a mess, i am still learning bash.the first is calling the nonpersistssh function (second line) and assigning the return value to nonpersistdiag.the function returns 1, but nonpersistdiag seems to only contain 0. i am unsure on how to proceed.the second problem is the nested else clause on line 10. it is a syntactical error. how would i declare it correctly?
Code: function endsession(){
nonpersistdiag=$[nonpersistssh]# a function that returns an exit code
sudo /etc/init.d/ssh stop; sshdiag=$?
[code]....
What are the uses of return 0, return 1 and exit statements in C
View 4 Replies View RelatedOn this link [URL]4 a return type is defined
Code:
return ((unsigned int)(unsigned long)base & TBASE_DEFERRABLE_FLAG);
What is the above function returning.I am not clear with definition of what is being returned in the above code.
I'm confused about what "echo $0" in a shell actually return. Consider these tests:
Code:
[root@e11apvl151 ~]# # Login shell:
[root@e11apvl151 ~]# echo $0
-bash
[root@e11apvl151 ~]# # Starting a new shell
[root@e11apvl151 ~]# bash
[root@e11apvl151 ~]# echo $0
bash
[root@e11apvl151 ~]# screen
[root@e11apvl151 ~]# echo $0
/bin/bash
Depending on wether the shell is a login shell, a regular shell, or a screen utility, I get different results.
I thought i'd set up the partitions correctly when i installed ubuntu, with a 15 gig "/" partision and a 45 gig "/home" and a 3.8gig "swap"
I was wrong i somehow misplaced the /home partition, and therefore didn't install it
I found this out about 4 days ago as i was running though video tutorial and realized i didnt have it setup correctly afterall
So... i did some research and found this site...[url] and i found something that seemed to work for various people, i deleted the 'now' windows partition and so i had this:
However i unmounted the /home folder following the instructions without realizing that i didnt have permissions to mount the /new home partition as it is not in the extended ubuntu 9.04 linux partition and i have no rights to it
So my question is, how do i fix the path to the /home folder (original) in ubuntu so that i can start over and do this correctly (ie; resize the extended partition and add the /newhoe directory/patition to ubuntu)
I realize that i can use a sudo command before lines to run su commands that are blocked in ubuntu, which is how i screwed up =
I cannot use anything in the menu as all links to programs are dead, i can run the add app, but it cannot install as the install folders are "not there"... i can see them in the terminal so i know my data is there and i can run the live disc to salvage it, but i cannot see it while ubuntu is loaded
Note; i have not restarted the computer and i don't know if this will block ubuntu from restarting either, so i need to fix via terminal, before i can do anything else, like letting the laptop rest.
I need to add a directory to path in ubuntu. The directory I want to add is on Windows drive .If I try to add a directory , lets say "some directory" to path , then on adding I get following error. The directory resides on HD.
user@user-desktop:~$ PATH=$PATH:/media/New Volume/some directory/javacc-5.0/bin
bash: Volume/some: No such file or directory.
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[code]....
I was wondering if we could cd in the directory of the PATH variable. For example, if I type in echo $DISPLAY. It will give me /tmp/launch-3ee4fg/org.x:0
Is there any way that I can just take the value '/tmp/launch-3ee4fg/' from the output of $DISPLAY and exclude out the filename to the end of the command. I tried using the read command and the IFS variable..apparently IFS does not recognise / I guess.
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?
View 1 Replies View RelatedI am using Apache/2.2.3 on Centos 55. I am having an issue that is pretty strange to me. Whenever I navigate to a url on my webserver from outside my network. I have to put a '/' in the directory path for example When I type in: mydomain.com/directory1 it winds up redirecting to the hostname for my server HOWEVER When I type in mydomain.com/directory1/ it works, since I am adding the '/' at the end of the path. I suspect it is because I do not have my FQDN set up correctly.I did not have this issue when I was using Ubuntu 10.04 , I suspect because Ubuntu automagically set this up for me. Is there a particular way I need to setup my FQDN in centos to get this to work properly? I have tried going into /etc/hosts and adding my FQDN in there, but I do not think I did it properly, is there a particular way the /etc/hosts file needs to be setup?
View 1 Replies View RelatedI'm trying to compress with zip for linux utility a file
Is need to be done (example):
But I would like that in the zip file there is only one file: source.file instead the whole directory path /usr, /src,... and the file.
I can't move up to the directory /usr/src/ to execute the command.
I must do this from / directory.
If this possible? I Windows systems even if I do the zip C:directory1directory2source.zip C:directory1directory2source.file, it does what I need: a Zip in directory2 with just the file source.file.
I've been looking up the man page for zip, but did not find anything useful, tried, -j, -D with no success.
I am working on getting my software packages installed on my fresh Slackware64-13.0 installation. Some (but definitely not all) of my executables are unable to be run.
I understand what PATH is for. It is for locating files, folders, executables in those directories when running from a Terminal window.
So, for example, I have just installed Cisco VPN Client for Linux, and it is the strangest thing. I should have access to this. I must not be understanding something here. Does anyone have any idea why this is not working for me? I have put in an example of what I am talking about.
I have no idea why this is not working.
I have a file:
979798707
787862348
766428634
I want to see if all the records in the file are present in the contents of the files of a particular directory.
Basically I want to say if grep doesn't return anything, then report.
For example in /tmp dir I have 4 files and flast 2 values (787862348 and 766428634) are present in the files of /tmp dir, but first one (979798707) is not. I want to echo that in a reporting file.
something like:
while read line
do
# if ! grep -rl $line /tmp
echo $line >> are_not_present
done < "myFile"
How do I achieve " if ! grep -rl $line /tmp"? That is, if the line is found by grep, then grep will print the output, but if grep does'nt find it, it will print nothing. How can I check if grep didn't find it (i.e. printed nothing)?
I'm reading a text file with fscanf using a loop until feof(inFile). How can I return to the top of the file? As in I have one loop that scans until the eof and then after it there's another loop and I want to start from the beginning of the file again scanning to the end of it. How do I get back there?
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