9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I am using the following nested loop
for i in {1..3}
do
for y in {1..3}
do
if ;
then
echo P0${i}R${y}.fas
mv P0${i}R${y}.fas P${i}R${y}.fas
read -t 5
fi
done
done
I was wondering if I can use a character such as * or ? instead of my second variable y. I tried R in... (3 Replies)
Discussion started by: Xterra
3 Replies
2. Programming
I have a MPI program like this:
void slave1(int j){
MPI_Status status;
MPI_Recv(&j,1,MPI_INT,0,0,MPI_COMM_WORLD,&status);}
void slave2(int j){
MPI_Status status;
MPI_Recv(&j,1,MPI_INT,0,1,MPI_COMM_WORLD,&status);}
int main(int argc, char *argv){
int numprocs, rank;
... (0 Replies)
Discussion started by: wanliushao
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3. Shell Programming and Scripting
Hi All,
Need help on below script
for g in `cat /home/sid.txt`
do
for h in `cat /home/dev.txt`
do
symmaskdb -sid $g -dev $h list assign |grep FA |head -1|awk '{print $2}' > tt1.txt
done
done
cat /home/sid.txt
**************
123
235
456 (5 Replies)
Discussion started by: ranjancom2000
5 Replies
4. Shell Programming and Scripting
Hi Team,
I just want to check whether my nested if loop used is correct or not.
if ]
if ]
export1
else
export2
fi
else
if ]
export3
else
export4
fi
fi
Thanks
Shiva (5 Replies)
Discussion started by: shivashankar_S
5 Replies
5. Shell Programming and Scripting
Hi,
I have the following script which is two while loops, but it is working only for the Inner loop without going back to the outer loop.
the aim of this script is to remove data files from memory after each five times for each setting of the rotate parameter
#!/bin/csh
set hdir =... (1 Reply)
Discussion started by: moon218
1 Replies
6. Shell Programming and Scripting
Hi,
I'm trying to compare two files using a loop statement.. So far I've gotten the below but instead of outputting what line number is missing in File1 one, I'd like it to output the actual line that was found..
Can anyone give me some pointers..
#!/bin/ksh
counter=1
exec 3<... (15 Replies)
Discussion started by: Jazmania
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7. Shell Programming and Scripting
Hello I have some nested loop to display files and form menu item.
The part of the code is below.
I found that after runnining the script for a while the display becomes very slow.
Does ksh shell provided any easy way to release variables, reinit, etc.
while ];do
script=0
... (2 Replies)
Discussion started by: ekb
2 Replies
8. Shell Programming and Scripting
I am trying to compare 2 files using for loop :
file1 :
=====
host1
host2
host3
file2:
====
host1
host2
host3
host4
host5
The common occurrence in file1 and file2 is to be written to file3. (3 Replies)
Discussion started by: sriram003
3 Replies
9. Shell Programming and Scripting
I have two do loops. When I break of the inner loop it doesn't go back to the outer loop but exit the program. (5 Replies)
Discussion started by: chinog
5 Replies
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)