for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
do
cp ../../../EditDistanceRandomParsimonator/RAxML_parsimonyTree.test4D20RI$i.0 intree
echo "Enter Option"
read option
if [ "$option" == "R" ]
then
./dnapars R
fi
echo "Enter Option"
read option
if [ "$option" == "U" ]
then
./dnapars U
fi
# other options
cp outfile result$i
done
Hi,
I wanted to know if i can write a program using switches and signals, etc to trace execution of other unix program which calls c program internally.
If yes how? If not with signals and switches then are there any other methods apart from debugging with gdb/dbx. (3 Replies)
I have made use of 'valgrind' and -finstrument-functions compiler option for debugging / analyzing code. Both the options lets us know the line / file being executed to some extent.
Is there a generic way that lets program dump the file:line it is getting executed dumped to a log file during... (3 Replies)
The thing that we need to be able to do is:
- Scanning tapes from failed backup jobs with bscan (a bacula command)
- loading the next tape with the mtx command
Bscan does unload tapes but does not load them.
Bscan comes with this message when it's done with a tape:
Mount Volume... (0 Replies)
Hi Guys,
We have a java program that basically install updates to an existing software. The java program consist of several screens asking user for choices (please see below for a detailed example)
*** Screen 1 ***
Please choose the operation you want to perform:
1. Install new... (5 Replies)
//Find the root of the equation (x^2)-2 by bisection method.
#include<iostream>
using namespace std;
double a,x;
double f(double x)
{
return ((x*x)-2);
} //Suppose the function is (x*x)-2.
void calcx(double a1,double b1)
{
x =... (2 Replies)
Hi all, I have the requirement to generate the file containing following command
eval /path/ dsjob -logdetail projectname JOBNAME /path/
1. The file contains the above command say about 150 times i,e only the JOBNAME changes in every command
2. The commands must be written in such a way... (2 Replies)
I need UNIX scripts for polling, Uncompressing files and moving files between directory. Also trying to save file paths and any other variables in an independent file (.env) and use these at runtime by executing this file in the main script. (3 Replies)
Hi
I have a program
int main(int srgc, char *argv)
{
for(int i=1; i<50; i++)
{
system("dd if=/dev/zero of=file$i bs=1024 count=$i");
}
return 0;
}
My doubt is how to use the "$i" value inside C code
Please help (2 Replies)
I have a question:
Where would I put the Command line (of any command) so that it executes every time I log on? Where would I put it if I want it to execute every time I start a new shell? (5 Replies)
Discussion started by: Nabeel Nazir
5 Replies
LEARN ABOUT PLAN9
setuid
SETUID(1) General Commands Manual SETUID(1)NAME
setuid - run a command with a different uid.
SYNOPSIS
setuid username|uid command [ args ]
DESCRIPTION
Setuid changes user id, then executes the specified command. Unlike some versions of su(1), this program doesn't ever ask for a password
when executed with effective uid=root. This program doesn't change the environment; it only changes the uid and then uses execvp() to find
the command in the path, and execute it. (If the command is a script, execvp() passes the command name to /bin/sh for processing.)
For example,
setuid some_user $SHELL
can be used to start a shell running as another user.
Setuid is useful inside scripts that are being run by a setuid-root user -- such as a script invoked with super, so that the script can
execute some commands using the uid of the original user, instead of root. This allows unsafe commands (such as editors and pagers) to be
used in a non-root mode inside a super script. For example, an operator with permission to modify a certain protected_file could use a
super command that simply does:
cp protected_file temp_file
setuid $ORIG_USER ${EDITOR:-/bin/vi} temp_file
cp temp_file protected_file
(Note: don't use this example directly. If the temp_file can somehow be replaced by another user, as might be the case if it's kept in a
temporary directory, there will be a race condition in the time between editing the temporary file and copying it back to the protected
file.)
AUTHOR
Will Deich
local SETUID(1)
01-02-2012
