9 More Discussions You Might Find Interesting
1. Homework & Coursework Questions
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
I'm able to create a group but when I'm trying to delete the group it keeps stating Group Doesn't Exist. I know... (2 Replies)
Discussion started by: GoBoyGo
2 Replies
2. Shell Programming and Scripting
I am trying to work on a script that will first check to see if a backup of a file exists, and if it does it will prompt the user to ask if he/she wants it replace. Of course, if the user says no then the file should be skipped.
Here is the code I have written. Does it look as if it is working... (1 Reply)
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1 Replies
3. UNIX for Dummies Questions & Answers
I have this code in tcsh and would like to know whether the syntax below will work in csh.
if( "${%rsl}" == 0 ) then
echo "rsl is empty"
endif
---------- Post updated at 06:38 AM ---------- Previous update was at 05:53 AM ----------
It does not seem so. Perhaps the best thing is to... (2 Replies)
Discussion started by: kristinu
2 Replies
4. Shell Programming and Scripting
Hi I need help to whit a script that start a program if a nother program is started first .
I thought something like this .
if then start program 2
Thanks (4 Replies)
Discussion started by: pelle
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5. Shell Programming and Scripting
I have the following data stored in a file.
1 /home/file13 /home/file2
2 /home/file41 /home/file654
3 /home/file61 /home/file45
4 /home/file81 /home/file43
...
I want to print the first column provided the files represented by the second and third column exist.
How to do that? (3 Replies)
Discussion started by: kevintse
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6. Shell Programming and Scripting
Hey People,
I've got a question! How can i write a function in a script which is looking for if a group exist and if not, that the group "users" is the standard group..I know that i have to use "grep" und "if-else"..I will be very happy for answers ;)
Greetz
Ali (2 Replies)
Discussion started by: AliC
2 Replies
7. UNIX for Dummies Questions & Answers
I am trying to test arguments to see if they are files in any directory.
I have :
but it's not working (7 Replies)
Discussion started by: skooly5
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8. UNIX for Dummies Questions & Answers
somehow my user names and groups on one of our machines are changed to numbers 700, 701, etc.
thus, i can only ssh into this machine as root.
is there a way to migrate the user names and groups to this machine?
thanks! (3 Replies)
Discussion started by: user23
3 Replies
9. UNIX for Dummies Questions & Answers
Is there a jumpstart equivalent tool in the linux environment? (1 Reply)
Discussion started by: pbonilla
1 Replies
chroot(1M) chroot(1M)
NAME
chroot - change root directory for a command
SYNOPSIS
newroot command
DESCRIPTION
The command executes command relative to the newroot. The meaning of any initial slashes in path names is changed for command and any of
its children to newroot. Furthermore, the initial working directory is newroot.
Note that command suffixes that affect input or output for the command use the original root, not the new root. For example, the command:
locates file relative to the original root, not the new one.
The command variable includes both the command name and any arguments.
The new root path name is always relative to the current root. Even if a is currently in effect, the newroot argument is relative to the
current root of the running process.
This command is restricted to users with appropriate privileges.
EXTERNAL INFLUENCES
International Code Set Support
Single- and multibyte character code sets are supported.
WARNINGS
command cannot be in a shell script.
Exercise extreme caution when referring to special files in the new root file system.
does not search the environment variable for the location of command, so the absolute path name of command must be given.
When using to establish a new environment, all absolute path name references to the file system are lost, rendering shared libraries inac-
cessible. If continued access to shared libraries is needed for correct operation, the shared libraries and the dynamic loader be copied
into the new root environment.
SEE ALSO
chdir(2), chroot(2).
STANDARDS CONFORMANCE
chroot(1M)