06-17-2012
In the first case the while loop is executed in a subshell ( except in Kornshell ) because of the pipe. This means that any variables set in the loop lose their value once the loop finishes and are no longer available outside the loop..
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1. Shell Programming and Scripting
hello friends...:-)
i need some help
i have a file cantain like this
Star1 ,NetWork,09/02/2008
Star1 ,NetWork,10/02/2008
Star1 ,NetWork,11/02/2008
Star2 ,NetWork,08/03/2008
Star2 ,NetWork,09/04/2008
Star2 ,NetWork,10/05/2008
i need to find out min, max dates
the output look like... (6 Replies)
Discussion started by: gemini106
6 Replies
2. Shell Programming and Scripting
Hi, i have a file with numbers in it and i was wondering if there's a script i could use to find the max number and have that printed to a new file?
example a.txt
18
26
47
34
27
so find the max number in a.txt and print it to b.txt.
Thanks! (17 Replies)
Discussion started by: moonbaby
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3. Shell Programming and Scripting
Is there a simple way of calculating the max number in a set of variables, so
a=1
b=3
c=6
d=30
something that says
e=max($a, $b, $c, $d)
I've found a way to do it using:
a="1"
b="3"
c="5"
d="50"
if ;
then
t=$a
else (3 Replies)
Discussion started by: unclecameron
3 Replies
4. Shell Programming and Scripting
FILE_NAME VER TYPE DELETED_DATE CREATED_DATE SIZE LOCATION
hello 1 d 2010-08-09 2010-08-09 4096 /home/xxxxx/project/
hello 2 d 2010-08-09 2010-08-09 4096 /home/xxxxx/project/
hello 3 d 2010-08-09 2010-08-09 4096 /home/xxxxx/project/
hello 4 d 2010-08-09 2010-08-09 4096 /home/xxxxx/project/
... (4 Replies)
Discussion started by: classic
4 Replies
5. Shell Programming and Scripting
Hello Experts,
I have got a txt files which has multiple columns, I want to get the max, min and diff (max-min) for each column in the same txt file. Example:
cat file.txt
a 1 4
b 2 5
c 3 6
I want ouput like:
cat file.txt
a 1 4
b 2 5
c 3 6
Max 3 6
Min 1 4
Diff 2 2
awk 'min=="" ||... (4 Replies)
Discussion started by: dixits
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6. Shell Programming and Scripting
hi,
i have a string
" 00000069 ThreadMonitor W WSVR0606W: Thread "WebContainer : 43|null" (00000069) was previously rep
orted to be hung but has completed. It was active for approximately 47533430 milliseconds. There is/are 43 thread(s) in tot
al in the server that still may be hung."
... (4 Replies)
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7. Shell Programming and Scripting
Experts,
Here is my question.
I have got file like below
# cat file
XYZb,24,26,6
XYZc,24,26,6
XYZe,24,25,5
XYZf,23,29,5
XYZi,16,25,5
XYZj,24,26,7
XYZn,17,23,4
XYZz,23,29,5
Now, I want to print the line's Column1 whose Column 3 is the max of all.
My code is awk -F',' 'BEGIN {max... (9 Replies)
Discussion started by: sathyaonnuix
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8. Shell Programming and Scripting
hai guys,
pick the 1st field and calculate max length.
if suppose max length is 2,
then compare the all records if <2 then add zero's prefix of the record.
for ex:
s.no,sname
1,djud
37,jtuhe
in this max length of the 1st field is 2 right
the output wil be
s.no,sname
01,djud... (6 Replies)
Discussion started by: Suneelbabu.etl
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9. Shell Programming and Scripting
I need to find the max/min of columns 1 and 2 of a 2 column file what contains the special character ">".
I know that this will find the max value of column 1.
awk 'BEGIN {max = 0} {if ($1>max) max=$1} END {print max}' input.file
But what if I needed to ignore special characters in the... (3 Replies)
Discussion started by: ncwxpanther
3 Replies
10. Shell Programming and Scripting
I need to find the max value of all columns except the 1st column and print the answer along with the 1st column.
Input
123xyz 0 0 1 2 0 0 0 0 0 0 0
234xyz 0 0 0 0 0 0 0 0 0 0 0
345xyz 0 0 1 0 0 0 ... (8 Replies)
Discussion started by: ncwxpanther
8 Replies
LEARN ABOUT OPENDARWIN
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)