Hi
I have a file with specified format .
Hxxxxxxxyyyyyggggggguuuuuuuuuurrrrrrrrrrrrrrrrrrrrrrrr
xxxxxxxxyyyyyggggggguuuuuuuuuurrrrrrrrrrrrrrrrrrrrrrrr
xxxxxxxxyyyyyggggggguuuuuuuuuurrrrrrrrrrrrrrrrrrrrrrrr
xxxxxxxxyyyyyggggggguuuuuuuuuurrrrrrrrrrrrrrrrrrrrrrrr... (3 Replies)
hi, :)
I have a file like this
10.456
123.567
456.876
234.987
........
.......
What i want to do is ia have to add all those numbers and put the result in some other file.
Any help pls.
cheers
RRK (8 Replies)
Hi All ,
Want to know the "sum" of all the digits in below file called "/sample" .Could some one please let me know the script either command .
cat /sample
12
34
23
23
Best Regards,
Chinni . (5 Replies)
Dear Unix Gurus,
I have a list of files that I want to loop over....for example:
sl40_z11.70.txt
sl41_z11.40.txt
sl42_z11.10.txt
sl43_z10.80.txt
using the script
#!/bin/sh
#
echo -n "....enter first Z-coordinate position....."; read zpos
q="scale=3; $zpos"
p=0.3
#... (7 Replies)
Dear guys;
How can I get the ceiling value of any floating number using shell or awk scripts or functions.
Example:-
old values "7.2" or "7.8" or "7.5" --->>> ceiling function ---->>> new value "8".
BR (6 Replies)
I am trying to add free and used memory (so that i can compute percentage used)of remote nodes using shell script. I use the openssh-server,expect tool and ssh script.
1)login.txt (info of nodes):
ip1|username|password
ip2|username|password
.
.
.
3)sshlogin.sh
#!/bin/bash ... (1 Reply)
Let, I have three numbers
+00123.25
-00256.54
+00489.23
I need to sum up all those three numbers, after storing them in three variables (say var1, var2, var3).
I used both expr and BC, but they didn't work for me.
But, I am not able to sum up them, as I don't have any idea how to... (13 Replies)
Hi guys
I have problem with my simple calculator, author of my book wrote
One way I tried is to test if one the inpur number is grater than zero, and then substatct
And my protptype function is
#include <stdio.h>
int main(void) {
float a, b , result;
... (11 Replies)
by the script, two files Q1 and Q2 will be generated on the system. Q1 will contain an integer number and Q2 also contain an integer number. i would like to add those numbers and put into new file.
excerpt from my script
22 subcount=`echo $dir/Q$qid.txt` + `echo $dir/Q$qid.txt`
23 echo... (1 Reply)
Discussion started by: lookinginfo
1 Replies
LEARN ABOUT BSD
expr
EXPR(1) General Commands Manual EXPR(1)NAME
expr - evaluate arguments as an expression
SYNOPSIS
expr arg ...
DESCRIPTION
The arguments are taken as an expression. After evaluation, the result is written on the standard output. Each token of the expression is
a separate argument.
The operators and keywords are listed below. The list is in order of increasing precedence, with equal precedence operators grouped.
expr | expr
yields the first expr if it is neither null nor `0', otherwise yields the second expr.
expr & expr
yields the first expr if neither expr is null or `0', otherwise yields `0'.
expr relop expr
where relop is one of < <= = != >= >, yields `1' if the indicated comparison is true, `0' if false. The comparison is numeric if
both expr are integers, otherwise lexicographic.
expr + expr
expr - expr
addition or subtraction of the arguments.
expr * expr
expr / expr
expr % expr
multiplication, division, or remainder of the arguments.
expr : expr
The matching operator compares the string first argument with the regular expression second argument; regular expression syntax is
the same as that of ed(1). The (...) pattern symbols can be used to select a portion of the first argument. Otherwise, the
matching operator yields the number of characters matched (`0' on failure).
( expr )
parentheses for grouping.
Examples:
To add 1 to the Shell variable a:
a=`expr $a + 1`
To find the filename part (least significant part) of the pathname stored in variable a, which may or may not contain `/':
expr $a : '.*/(.*)' '|' $a
Note the quoted Shell metacharacters.
SEE ALSO sh(1), test(1)DIAGNOSTICS
Expr returns the following exit codes:
0 if the expression is neither null nor `0',
1 if the expression is null or `0',
2 for invalid expressions.
7th Edition April 29, 1985 EXPR(1)