When a application is ran from the shell:fork() is calledexecve() is calledI know the shell stats the file to make sure the required permissions are allowed in the child shell. But I can not find this in the man fork. Nor can I find this in man execve. Which one of these processes/calls stats the binary to be ran?
View 1 RepliesI am quite confused about the following description on fork. Could you please explain it ?The child process shall have its own copy of the parent's file descriptors. Each of the child's file descriptors shall refer to the same open file description with the corresponding file descriptor of the parent.For example, I am opening a socket and then fork. Now, does the child have a separate socket or is shares it with the parent. Does I have any impact on using it in child?
View 2 Replies View Relatedcan you see below command i give return me error however it has been working fine before. there is 1 directory i want to make it .tar.gz [root@sa1 script]# tar cvzf /var/opt/bkup_axigen/axigen_bkup_2.tar.gz /var/opt/axigen/domain tar: Removing leading `/' from member names tar: /var/opt/axigen/domain: Cannot stat: No such file or directory tar: Error exit delayed from previous errors
View 2 Replies View RelatedI run the following file with the >log.log redirector and it does not capture errors.
#!/bin/bash
echo ************************BEGIN LOG******************************
date +"%m/%d/%Y %H:%M:%S $HOSTNAME"
cp -f /scripts/original/clamscans.log /scripts
[code]....
The following errors show up when I run from the file from the term window, but are not written to log.log:
tar: /public/public/clamscans/*.txt: Cannot stat: No such file or directory
tar: Error exit delayed from previous errors
mv: cannot stat `/public/public/clamscans/*.txt': No such file or directory
I know with windows you can add the 2>&1 to capture error data. Is there such a thing for Linux?
I'm trying to backup every night a big directory (~2.5Gb) using tar+gzip.I'm calling tar like this:nice -n 19 tar --ignore-failed-read --exclude-tag-all=.kein-backup -Pczpsf '/backup/20100925233802f/archive.tar.gz' '/srv/products'And in 90% of the cases works just fine, in about 20 minutes is everything done. However, if it happens that in those minutes one file or folder from '/srv/products' gets deleted it reports me the following error:tar: /srv/products/prod14564.gif: Cannot stat: No such file or directorytar: Exiting with failure status due to previous errorsDoes it exist a parameter for tar to ignore this kind of errors? Is it there any other way to avoid these errors
View 3 Replies View RelatedSo I have created a Bash script with the intent of the program to change the names of the files in a folder's subdirectory.The code recognises the individual subdirectories, then is able to enter into one and list the files individually, but when it tries to change their information it says;' cannot stat ' : ' No such file or directory 'As if it is looking in the directory that contains the Bash script, not its subdirectory.It is essentially saying, I see a file here called FILE but sorry, I can't change FILE because FILE doesn't exist. kweh?Is this something outside the capabilities of Bash? Am I asking too much of it? Can Bash only manipulate files that are in the same folder as the script?
Code:
#!/bin/bash
echo enter directory
[code]....
I am trying to install the nvidia-drivers from Slackbuilds.org. When I try to run the SlackBuild, I get the following error:
Code:
install: cannot stat `cuda.h': No such file or directory
What am I missing?
The nvidia-kernel SlackBuild ran fine and created the kernel package.
I've just noticed a small problem I am having with my company file server. When making backups to an external NTFS drive weekly I have noticed that the file names with thai characters are not getting backed up. I receive the below error:
rsync: recv_generator: failed to stat (to the file name...)
Invalid or incomplete multibyte or wide character (84)
There are thousands of files on the server that contain thai characters in there names so how do I get around this problem so it will back up all files and not just the English character ones. I read somewhere that each file would need to be converted to a different character set but this would take years as there are so many files.
Code: stuart@stuart:~/$cat showthread.php.html | grep -o [URL][^"< ]*" | uniq | head -n3 | plowdown - cannot stat '-': No such file or directory Code: stuart@stuart:~/$ awk NR==$x Musiclist.txt | cut -d/ -f6 | basename $1 .mp3 .mp3 Here's some system info on the bash i'm using:
[Code]...
Recently upgraded to F12. K3B can't burn DVDs. Drive was working fine in Fedora 10 before the upgrade, and I've applied all updates.
Here is the output when run from console:
Code:
lsof: WARNING: can't stat() fuse.gvfs-fuse-daemon file system /home/SlowCoder/.gvfs
Output information may be incomplete.
(K3bDevice::HalConnection) unlock queued for /org/freedesktop/Hal/devices/storage_model_DVD__RW_GA10N
First sec data area: 43:41:33 (LBA 196608) (402653184
[code]....
I had a doubt about the role of the evironment set in the execve() function of the C languange.
If I run something like
Code:
#include <stdio.h>
#include <unistd.h>
int main(void) {
[Code]....
What is the utility of setting the environment in the execve()?
Is there another way (not using chdir()) of changing the current directory before running exec()?
well I am a novice in Linux OS, I have a wireless card, it's a Linksys WUSB600N but it doesn't work in Ubuntu 10.10 Desktop Edition, which it is the one I have, 64 bits machine, so I read this [URL] and I did all the steps, I downloaded 2010_0915_RT3572_Linux_STA_v2.4.0.2.tar but in the last part, sudo make install I got this error
alain@alain:~/t/2010_0915_RT3572_Linux_STA_v2.4.0.2$ sudo make install
make -C /home/alain/t/2010_0915_RT3572_Linux_STA_v2.4.0.2/os/linux -f Makefile.6 install
mkdir: cannot create directory `/etc/Wireless': File exists
make[1]: Entering directory `/home/alain/t/2010_0915_RT3572_Linux_STA_v2.4.0.2/os/linux'
rm -rf /etc/Wireless/RT2870STA
mkdir /etc/Wireless/RT2870STA
[Code],,,,
so i have no way to get connected to the internet, what is that error cannot stat `rt3572sta.ko': No such file or directory, I think thats why i can make the wireless card work.
I have an ntfs partition that I wish to access as a normal user(non-root). For this I did the following. As root I created a folder /windows and did a chmod 777 -R on /windows. Then I added the following line to /etc/fstab
Code:
/dev/sda3 /windows ntfs-3g defaults,nosuid,nodev,umask=000 1 0
Now, the partition is mounted alright but the problem is that when any other user (non-root) creates a files in /windows (say by executing touch newfile) the newly created file has the owner and group set as root. The non-root user can create the file and he can also delete the file, however, he cannot change the permissions of the file and also the owner:group is always set as root:root. How do I get across this problem, i.e. how do I mount a partition, so that a non-root user can also change the permissions and ownerships of the files he creates.
Finally I managed to install my printer/scanner drivers.The last thing I need to do is to add the following two lines to 40-libsane.rules (which is a read only file):# Brother scanners ATTRS{idVendor}=="04f9", ENV{libsane_matched}="yes".How can I change permissions for this file or add these lines without changing permissions?
View 2 Replies View Relatedhere is my working code :
Code: #include <stdio.h>
#include <stdlib.h>
#include <string.h>
[code]....
1) Write a C program using the fork() system call that that generates the Fibonacci sequence in the child process. The number of the sequence will be provided in the command line. For example, if 5 is provided, the first five numbers in the Fibonacci sequence will be output by the child process. Because the parent and child processes have their own copies of the data, it will be necessary for the child to output the sequence. Have the parent invoke the wait() call to wait for the child process to complete before exiting the program. Perform necessary error checking to ensure that a non-negative number is passed on the command line.
2) Repeat the preceding exercise, this time using the CreateProcess () in the Win32 API. In this instance, you will need to specify a separate program to be invoked from CreateProcess(). It is this separate program that will run as a child process outputting the Fibonacci sequence. Perform necessary error checking to ensure that a non-negative number is passed on the command line.i have done with Fibonacci sequence .but i dont know how to include tht fork() function and win32 api .any one can help to finish?
How can I unzip file/folder in a way that it sets permissions of my choice to the unzipped contents instead of setting them for root:root?
View 2 Replies View RelatedI am trying to automate ftp to transfer files from windows to Linux server automatically and my script looks like this .
@echo off
SET CUSTOM=/apps12i/oracle/KIRAN/apps/apps_st/appl/custom/12.0.0/reports/US
echo user oracle> ftpcmd.dat
[code]....
Any files we transfer through ftp from windows , their default permissions to be set 755 automatically . We are using Red Hat Enterprise Linux AS release 4 (Nahant Update 7) .
copying permissions from one file to another.I know that command for changing permission is "chmod", for example chmod 666 filename However, I have one file filename1 and by listing all contents of a directory with ls -al I can find out its permissions in form -rwwx and similar. Now I want to define exact same permissions to other file "filename2". How to use chmod command to accomplish this. Other way around would be to simply copy permissions from one file to another. Is there any command for this purpose?
View 3 Replies View RelatedI had created a file under a directory & set the permissions through chmod command but when I create another file under this directory, I get the default permissions. Is this due to umask or can I set the file permissions through chmod under a directory.
View 5 Replies View RelatedI've a script that forks to another script.
The problem is that the child will not return to main process.
Main script "fork.sh"
Code:
The child process "smb_fork.sh"
Code:
when running it from the terminal "sh -x ./foork.sh"
Code:
My goal is via cron connect to ~100 remote winXP computers and download a single file. There fore I like to fork the process.
trying to fork multiple child but the program does not go as i want...
My code :
Code:
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
[code].....
I have some files lying around in /root/bla/, all these files are 644 and /root/bla/ is 755. Still, when I try (as a different user) to cp /root/bla/file ., I get a "cp: cannot stat: Permission denied". I also cannot ls /root/bla/, I also get a Permission denied... what gives?
View 3 Replies View RelatedI would like to find out what sources created this /proc/stat?
View 2 Replies View RelatedI'm using my Linux (SLES 10) server as a File Server at this point. I need to set File Permissions to nested folders differently to different groups. For example:
homesharedengineering* should be read only for groupA
homesharedengineeringadmin should be read & write for groupB Plus read only for groupA
homesharedengineeringautocad should be read & write for groupC Plus read only for groupA
I've been using Webmin and Putty to set permissions but Putty only allows me the Default Group, it won't allow me to set several groups on the same directory. Webmin seems to allow me to add multiple groups (Webmin --> Others --> File Manager --> Info & ACL tab will provide extended abilities) but when I add multiple groups, they don't seem to take effect? I'm wondering if my setup at the 'Share' level or at the hierarchy of my folder structure (unix based) needs to be set specifically?
I keep creating practice perl scripts in a linux directory using vi <filename> and need to chmod 751 <filename> before I can run it as I wish to. I'm sure there is a simple way to default my permissions or config them at creation, but I'm not familiar with it ayuda me por favor.
View 2 Replies View RelatedLet's say you have this structure:
+ directory
-- file1
-- file2
-- file3 -> /tmp/file3
file3 is a link to another file3 somewhere else on the system.
Now let's say I chmod 777 the directory and all contents inside it. Does my file3 in /tmp receive those permissions? Also, let's say we have the same situation but reversed.
/tmp/file3 -> /directory/file3
If I apply the permissions on the file being linked to, how does that effect the link?
Under debian i did this:
casey@t400:~/programs$ ls -l
-rw-rw-r-- 1 root root 2071 2010-03-28 05:15 urlgetter.cpp
Then
casey@t400:~/programs$ gedit urlgetter.cpp
and upon attempting to save the file, I get the error
"Could not save[...] You do not have the permissions necessary to save the file."
but I am a member of the group root:
casey@t400:~/programs$ cat /etc/group | grep root
root:x:0:casey
Is it possible to let users create the directory or files but only user "yat" can delete them.suppose other users are geller ross joe from group FH , who have privileges. whenever these users create file or dir , they should not able delete it.BottomLine: Group users should create file but should not be able to delete them.By the way using sgid bit didnt help .
View 14 Replies View RelatedKernel 2.6.21.5, slackware 12.0 For a given app run by me as user john to be able to create a file in /foo1/foo2/, what do I need? (a) john to have write permissions in /foo1/? (b) john to have write permissions in /foo1/foo2/? (c) john to have write permissions in both /foo1/ and /foo1/foo2/? Any hint will be welcome. Note: No. It's not homework. KTorrent complains when trying to create the files being downloaded, saying 'permission denied'. But I think he is being run by another user. I can explain in a different thread.
View 3 Replies View Related