11-20-2017
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hey can anyone tell me the korn script code to implement an interactive integer calculator using the shell's built in arithemetic expression evaluation (2 Replies)
Discussion started by: sahithi_khushi
2 Replies
2. Shell Programming and Scripting
I am pretty new to the Unix word, and have created a working calculator script. I have one problem. It doesn't use any decimals, it rounds off to the nearest whole number.
1 #!/bin/ksh
2 while true; do
3 echo -n "Enter the first integer: "; read IN1
4 test... (2 Replies)
Discussion started by: ironhead3fan
2 Replies
3. UNIX for Dummies Questions & Answers
hi, im new to the unix system and scripting and was wondering if anyone could help me with this problem iv been havin... i want the system to:
1. ask me for a number
2. ask me for a command to use on that number (* + - /)
3. ask me for another number
4. then ask me for another command, if the... (2 Replies)
Discussion started by: jdougy
2 Replies
4. Shell Programming and Scripting
I have 2 questions.
1) Is there a means of directing output to a file (">") while making it still output to the console?
I have a script that calls another lengthy script.
2) I can direct the output of the lengthy script and grep it for the words "good" or "bad" to know if I need the run... (2 Replies)
Discussion started by: mrwatkin
2 Replies
5. Shell Programming and Scripting
Hi Guys,
I found this code in net.. it is working fine..
But can anybody explain me the sed statement used in the code..
echo "Enter the expression:\c"
read express
eval echo "$express"|sed 's/^/'$precision' \
/'|bc -l|\
sed -n '1,${
/syntax/!{
}
... (2 Replies)
Discussion started by: mac4rfree
2 Replies
6. Shell Programming and Scripting
hi,
I have some problems in my simple script about the redirect echo stdout command inside a condition. Why is the echo command inside the elif still execute in the else command
Here are my simple script
After check on the two diff output the echo stdout redirect is present in two diff... (3 Replies)
Discussion started by: jao_madn
3 Replies
7. Homework & Coursework Questions
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known/data:
Script a simple calculator. In the command line enter the script file
/home/etc/mycalc or /home/etc/mycalc 1 +... (6 Replies)
Discussion started by: herb bertz
6 Replies
8. Shell Programming and Scripting
HI
My doubt may be basic one but I need to get it clarified..
When i use "if" condition that checks for many AND, OR logical conditions
like
if ]; then
return 0
fi
Even the if condition fails it returns as zero.. Any clue..
But if i add else condition like
if ]; ... (2 Replies)
Discussion started by: Priya Amaresh
2 Replies
9. Shell Programming and Scripting
I wrote a code to find codons in a DNA string. The only problem I have is how do I make the code only work for a file with DNA. This means the file only has the characters a,c,g,t and no white space characters. (3 Replies)
Discussion started by: germany1517
3 Replies
10. UNIX for Beginners Questions & Answers
So have I got this :
#!/bin/bash
clear
echo "Enter the first number:"
read n1
echo "Choose an operation:"
echo "1. add"
echo "2. subtract"
echo "3. multiply"
echo "4. divide"
read opr
echo "Enter the second number:"
read n2 (1 Reply)
Discussion started by: mugiboya
1 Replies
ip(4p) ip(4p)
Name
ip - Internet Protocol
Syntax
#include <sys/socket.h>
#include <netinet/in.h>
s = socket(AF_INET, SOCK_RAW, 0);
Description
The IP is the transport layer protocol used by the Internet protocol family. It can be accessed through a ``raw socket'' when developing
new protocols or special purpose applications. IP sockets are connectionless and are normally used with the and calls. The call, however,
can also be used to fix the destination for future packets, in which case the or and or system calls can be used.
Outgoing packets automatically have an IP header prepended to them, based on the destination address and the protocol number the socket is
created with. Incoming packets are received with their IP headers and options intact.
Diagnostics
On failure, a socket operation returns any of the following errors:
[EISCONN] Tried to establish a connection on a socket that already had one, or tried to send a datagram with the destination address
specified when the socket was already connected.
[ENOTCONN] Tried to send a datagram, but no destination address was specified and the socket was not connected.
[ENOBUFS] The system ran out of memory for an internal data structure.
[EADDRNOTAVAIL]
Made an attempt to create a socket with a network address for which no network interface existed.
See Also
send(2), recv(2), inet(4f), intro(4n), packetfilter(4)
ip(4p)