05-22-2009
10 More Discussions You Might Find Interesting
1. IP Networking
i am writing a client and server program
client program
main()
{
int sockfd,n;
char str;
struct sockaddr_in sock;
if ((sockfd=socket(AF_INET,SOCK_STREAM,0))<0)
{
perror("SOCKET ERROR");
}
bzero(&sock,sizeof(sock));
sock.sin_family=AF_INET; (1 Reply)
Discussion started by: ramneek
1 Replies
2. Shell Programming and Scripting
Hi,
I did a df|awk| command and it returns a percentage "94%",
how could I only get the integer part
"94" out of it, so I can compare it to another number,
I knwo that I have to pipe it to sth, but "grep " did not work, it still give me number WITH the percentage, does someone know what... (3 Replies)
Discussion started by: ericaworld
3 Replies
3. Shell Programming and Scripting
Hi ,
I have code like below in my ksh script, but getting an error as SP2-0253: data item 1 ("SAMPLE_ID") will not fit on line , pls help me. thanks.
if (( CHECKS == 0 )) || (( CHECKS == 1 ))
then
V_SAMPLE_ID=$( $ORACLE_HOME/bin/sqlplus -S / <<EOF
whenever sqlerror exit 1... (5 Replies)
Discussion started by: bennichan
5 Replies
4. Shell Programming and Scripting
i have created a script that will reverse any given ineter.
#!/bin/ksh
echo "Enter the number"
read n
if
then
a=`expr $n / 10`
b=`expr $n % 10`
c=`expr $b \* 10 + $a`
fi
echo $c
---------------------------------------------------------------------
the problem with this script... (4 Replies)
Discussion started by: ali560045
4 Replies
5. UNIX for Dummies Questions & Answers
I have search the forum for an easier way to write this code. I have two separate 'if' to do this and it works but am wondering if someone knows a quick way to combine them. I want anything between 1 and 100 but not '01' or '005', '0010', etc.
if ) ]] ||
]; then
echo "Try... (3 Replies)
Discussion started by: giannicello
3 Replies
6. Shell Programming and Scripting
Hi folks,
I have a value like A12,i could able to change this into integer using typeset as below
typeset -i A12
But, I need your advice to change the values like 1A2 or 12A into integer.
Thanks in advance.
Thanks,
Sathish (3 Replies)
Discussion started by: bsathishmca
3 Replies
7. Solaris
hello,
i am writing a script that takes the UID from the PASSWD and then i want
to increse the Number by one. for the Next user.
i cannot get this to work that a variable is as interger
example:
set i = 0
set $i = $+1
it's in tcsh if it's mather (10 Replies)
Discussion started by: shatztal
10 Replies
8. Linux
I am migrating some shell script from Unix to Linux and i am getting wrong value for integer variable.
In Unix:
integer X=007300
echo $X
7300
In Linux:
integer X=007300
echo $X
3776
Please help me why it is giving wrong output. (1 Reply)
Discussion started by: prav_chidugulla
1 Replies
9. Shell Programming and Scripting
hi,
how to I do this?
i="4.000"
if ; then
echo "smaller"
fi
how do I convert the "4.000" to 4?
Thanks! (4 Replies)
Discussion started by: h0ujun
4 Replies
10. Shell Programming and Scripting
I am on HP-UX using ksh in the script.
MaxSal=`sqlplus -silent /nolog <<EOF
connect / as sysdba
whenever sqlerror exit sql.sqlcode
set pagesize 0 feedback off verify off heading off echo off
select max(sal) from emp1;
select max(sal) from emp2;
select max(sal) from emp3;
exit;
EOF`... (3 Replies)
Discussion started by: bang_dba
3 Replies
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
ed(1), 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.
EXPR(1)