01-27-2009
The first thing I notice offhand is that you zero out the sum inside the while loop for every line.
But also, you don't display how you are getting the contents of the file to be read in the while loop. Can you show what you did there. If nothing, than that is the reason the script is "hanging". It's reading stdin which means it's awaiting your input.
Then there is the problem that you are working with floating point numbers. Does your shell handle that? Mine doesn't
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Guys -- I am noob and I am really strugging on this one. I cant even write the pseudo code for it. I have a file that spits values in individual rows as such:
file:
user date type size
joe 2005-25-09 log 1
joe 2005-25-09 snd 10
joe 2005-25-09 rcd 12
joe 2005-24-09 log 2
joe... (1 Reply)
Discussion started by: made2last
1 Replies
2. Shell Programming and Scripting
Hi,
I need help on doing the below thing in shell script.
I have a file with millions of rows called "abc.txt". i have another file with millions of rows called "xyz.txt".
I would like to do the below operation.
Open the abc.txt, read the first line, do some operations on the column... (2 Replies)
Discussion started by: informsrini
2 Replies
3. Shell Programming and Scripting
Hello,
I want to make a script to do this :
the file is with line :
TOTO TEST1
TOTO TEST2
TITI TEST1
TITI TEST2
TITI TEST3
i want he become :
TOTO TEST1 TEST2
TITI TEST1 TEST2 TEST3 (3 Replies)
Discussion started by: safsound
3 Replies
4. Shell Programming and Scripting
Please advice script for changing from A to B
I'd like to Split a row to multiple rows with 4 columns using shell script.
The data of the file is in one row as below that is 28Mbyte size.
A>
cto10001 0000000 201010 10:52:13 cto10001 0000000 201011 10:52:13 cto10001 0000000 201011 10:52:13... (2 Replies)
Discussion started by: ianpapa
2 Replies
5. UNIX for Dummies Questions & Answers
Hello Everyone,
My issue is that I want to traverse a database table row by row and do some action on the value retrieved in each row.
I have gone through a lot of shell script questions/posts. I could find row by row traversal of a file but not a database table.
Please help.
Thanks &... (5 Replies)
Discussion started by: ahsan.asghar
5 Replies
6. Shell Programming and Scripting
Hi,
I've a csv file seperated by '|' from which I'm trying to remove the excess '|' characters more than the existing fields. My CSV looks like as below.
HRLOAD|Service|AddChange|EN
PERSONID|STATUS|LASTNAME|FIRSTNAME|ITDCLIENTUSERID|ADDRESSLINE1
10000001|ACTIVE|Testazar1|Testore1|20041|||... (24 Replies)
Discussion started by: rajak.net
24 Replies
7. Shell Programming and Scripting
I want to put one xml record in one row and so on...
sample two records are here.
<?xml version="1.0"?>
<Object>
<Header>
<XCOMVers>V1.0</XCOMVers>
<REPORT>XXXXX</REPORT>
<CODE>002</CODE>
</Header>
<IssueCard>
<Record>
<L>CAR SYSTEM -SSSSS -</L>
... (1 Reply)
Discussion started by: sene_geet
1 Replies
8. Shell Programming and Scripting
Hi guys
I have file A with Below Data
ABC123 X1 X2 X3
ABC123 Y1 Y33 Y4
ABC123 Z1 ZS2 ZL3
ABC234 P1 PP3 PP9
ABC234 Q1
ABC234 R1 P09 PO332 PO331 OKI12
..
..
..
Now I want file B as below
ABC123 X1 X2 X3;Y1 Y33 Y4;Z1 ZS2 ZL3
ABC234 P1 PP3 PP9;Q1;R1 P09 PO332 PO331 OKI12... (1 Reply)
Discussion started by: asavaliya
1 Replies
9. Shell Programming and Scripting
HI Guys,
I have Below Input :-
RepigA_hteis522 ReptCfiEtrBsCll_aofe
MSL04_MSL2_A25_1A 0 9
MSL04_MSL2_A25_1B 0 9
MSL04_MSL2_A25_1C 0 9
RepigA ReptCfiEtrBsCll
hteis522 aofe
MSL04_MSL2_A25_1A 0 9
MSL04_MSL2_A25_1B 0 9
MSL04_MSL2_A25_1C 0 9
Split Data in two first row... (2 Replies)
Discussion started by: pareshkp
2 Replies
10. Shell Programming and Scripting
Hello Team,
I need information on how to read one row at time using shell script. For example i have below data.
service-description servername warning critical mountpoint
disk-usage-tmp generic-service test1 80 90 /tmp
disk-usage-var ... (6 Replies)
Discussion started by: ghpradeep
6 Replies
LEARN ABOUT CENTOS
foreach
foreach(n) Tcl Built-In Commands foreach(n)
__________________________________________________________________________________________________________________________________________________
NAME
foreach - Iterate over all elements in one or more lists
SYNOPSIS
foreach varname list body
foreach varlist1 list1 ?varlist2 list2 ...? body
_________________________________________________________________
DESCRIPTION
The foreach command implements a loop where the loop variable(s) take on values from one or more lists. In the simplest case there is one
loop variable, varname, and one list, list, that is a list of values to assign to varname. The body argument is a Tcl script. For each
element of list (in order from first to last), foreach assigns the contents of the element to varname as if the lindex command had been
used to extract the element, then calls the Tcl interpreter to execute body.
In the general case there can be more than one value list (e.g., list1 and list2), and each value list can be associated with a list of
loop variables (e.g., varlist1 and varlist2). During each iteration of the loop the variables of each varlist are assigned consecutive
values from the corresponding list. Values in each list are used in order from first to last, and each value is used exactly once. The
total number of loop iterations is large enough to use up all the values from all the value lists. If a value list does not contain enough
elements for each of its loop variables in each iteration, empty values are used for the missing elements.
The break and continue statements may be invoked inside body, with the same effect as in the for command. Foreach returns an empty string.
EXAMPLES
This loop prints every value in a list together with the square and cube of the value:
set values {1 3 5 7 2 4 6 8} ;# Odd numbers first, for fun!
puts "Value Square Cube" ;# Neat-looking header
foreach x $values { ;# Now loop and print...
puts " $x [expr {$x**2}] [expr {$x**3}]"
}
The following loop uses i and j as loop variables to iterate over pairs of elements of a single list.
set x {}
foreach {i j} {a b c d e f} {
lappend x $j $i
}
# The value of x is "b a d c f e"
# There are 3 iterations of the loop.
The next loop uses i and j to iterate over two lists in parallel.
set x {}
foreach i {a b c} j {d e f g} {
lappend x $i $j
}
# The value of x is "a d b e c f {} g"
# There are 4 iterations of the loop.
The two forms are combined in the following example.
set x {}
foreach i {a b c} {j k} {d e f g} {
lappend x $i $j $k
}
# The value of x is "a d e b f g c {} {}"
# There are 3 iterations of the loop.
SEE ALSO
for(n), while(n), break(n), continue(n)
KEYWORDS
foreach, iteration, list, looping
Tcl foreach(n)