I am unable to access the value set inside the loop from outside loop .
Thought of taking this to forum , I had seen other replies also , where a pipe takes the execution to another shell and mentioned thats the reason we do not get the variable outside loop . But I am getting an issue and I am... (1 Reply)
I am writing a shell script using the korn shell. It seems that I am only
able to use local variables within a while loop that is reading a file.
(I can't access a variable outside a previously used while loop.) It's been
a while since I wrote shell scripts. Here is a sample
cat file.txt... (4 Replies)
Hi,
I had installed vsftp in rhel5 and i want to restrict all the local users from accessing the ftp.
i want to allow specific users to access the ftp server.
Request you to please help.
Thanks & regards
Arun (1 Reply)
Hello,
I've inherited an NFS setup that allows external servers to write to an NFS share on a Centos box. Here is an example line from /etc/exports (there are four entries that only are different based on server IP adress).
/exports/foobar... (4 Replies)
Unable to mount location Can anyone help with this please?
Since recently installing 12.04 from a downloaded live CD onto my desktop computer, I have been unable to re-establish a network connection with my other... (2 Replies)
Dear Friends,
This is not a problem , it's a course work (UNIX scenario)....
As part of it I am searching Remote Attacks and find points as
1. Exploiting a listening service
2. Routing through Unix system that is providing security between 2 or more networks
3. User initiated Remote execution... (1 Reply)
Hi All,
Is it possible to give full access for a normal user in a NFS share?
If its not possible is there a trick with which I can make it work?
Thanks in advance
Shyam (1 Reply)
Below is my code:
count=0
if
...
...
else
...
find * -prune -type d | sort -r -n | while read d; do
count=1
if ; then
echo "Count1:$count"
...
...
break 2;
fi
...
done
...
fi
echo "Count2:$count" (9 Replies)
Hello All,
I'm working on a script that will actually read a file consisting of data like the below:(ReportID,Sub_reportID,Sub_reportName)
1,1,ABC
1,2,DEF
1,3,GHI
2,1,JKL
2,2,MNO
3,1,PQR
I want to read the Sub Report details for a Report_ID using while loop and write these values into... (6 Replies)
Hi All,
As part of LDAP implementation we need to restrict users/groups locally on solaris machine:
Options tried:
sshd_config: as far as my testing it is restricting either user or group, as per the first preference.
pam_access.so by default I am unable to find(need some help if this is... (0 Replies)
Discussion started by: Sridaran
0 Replies
LEARN ABOUT REDHAT
while
while(n) Tcl Built-In Commands while(n)
__________________________________________________________________________________________________________________________________________________NAME
while - Execute script repeatedly as long as a condition is met
SYNOPSIS
while test body
_________________________________________________________________DESCRIPTION
The while command evaluates test as an expression (in the same way that expr evaluates its argument). The value of the expression must a
proper boolean value; if it is a true value then body is executed by passing it to the Tcl interpreter. Once body has been executed then
test is evaluated again, and the process repeats until eventually test evaluates to a false boolean value. Continue commands may be exe-
cuted inside body to terminate the current iteration of the loop, and break commands may be executed inside body to cause immediate termi-
nation of the while command. The while command always returns an empty string.
Note: test should almost always be enclosed in braces. If not, variable substitutions will be made before the while command starts execut-
ing, which means that variable changes made by the loop body will not be considered in the expression. This is likely to result in an
infinite loop. If test is enclosed in braces, variable substitutions are delayed until the expression is evaluated (before each loop iter-
ation), so changes in the variables will be visible. For an example, try the following script with and without the braces around $x<10:
set x 0
while {$x<10} {
puts "x is $x"
incr x
}
SEE ALSO
break(n), continue(n), for(n), foreach(n)
KEYWORDS
boolean value, loop, test, while
Tcl while(n)