I've done command-line arguments in other languages, but I'm having trouble passing a command-line argument to call SIGALRM. Basically I'm trying to make is where -s would have the number of seconds like this:
Code:
./test.py -s 5
However, when I run it like the above the SIGALRM never gets called. Here is the code I have so far:
Code:
#!/usr/bin/python
import socket, sys, getopt, signal, os
def main(argv):
seconds = ''
try:
opts, args = getopt.getopt(argv,"s",[seconds])
except getopt.GetoptError:
print 'tcp-server.py -s <seconds>'
sys.exit(2)
if __name__ == "__main__":
main(sys.argv[1:])
def handler(signum, frame):
print 'Signal handler called with signal', signum
raise IOError("Couldn't open device!")
signal.signal(signal.SIGALRM, handler)
signal.alarm(5)
# This open() may hang indefinitely
fd = os.open('/dev/ttyS0', os.O_RDWR)
signal.alarm(0)
# Create a TCP/IP socket
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# Bind the socket to the port
server_address = ('localhost', 10000)
print >>sys.stderr, 'starting up on %s port %s' % server_address
sock.bind(server_address)
# Listen for incoming connections
sock.listen(1)
while True:
# Wait for a connection
print >>sys.stderr, 'waiting for a connection'
connection, client_address = sock.accept()
try:
print >>sys.stderr, 'connection from', client_address
# Receive the data in small chunks and retransmit it
while True:
data = connection.recv(16)
print >>sys.stderr, 'received "%s"' % data
if data:
print >>sys.stderr, 'sending data back to the client'
connection.sendall(data)
else:
print >>sys.stderr, 'no more data from', client_address
break
finally:
# Clean up the connection
connection.close()
Hi
How to pass multi line text as a command line argument to a program.
(i.e)
./a.out hi this is sample 0 file1
where
hi this is sample should be stored in argv
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Hi all,
How many arguments can we pass while testing a prgm at command line..
I encountered an issue while passing 10 arguments.
For $10 its taking argument passed for $1 followed by 'zero'.
can we pass more than 9 arguments /Is there any other way.
Thanks,
rrs (6 Replies)
--------------------------------------------------------------------------------
I have this while loop and at the end I am trying to get it to tell me the last argument I entered. And with it like this all I get is the sentence with no value for $1. Now I tried moving done after the sentence... (1 Reply)
I am working on a script wherein i need the user to enter the Build ID
for eg:the command line will show
enter the build ID
Now on entering the build ID it should be assigned to @ARGV.
How can this be done.? (1 Reply)
Hi, I'm having problems with a script where I wanted every single option specified in the command line to have an argument taken with it, but for some reason only d works in the code I will be showing below.
For example if I did ./thisfile -a something
it would come up with "a chosen with " as... (2 Replies)
hi, can someone how to accept command line arguments as a variable using in script?
like: ./scriptname arguments
by accept arguments, I can use it in my script?
thx! (1 Reply)
I am new to the world of Unix and shell scripting and have been trying to get the following simple script to work:
#!/bin/bash
echo "what is your age?"
echo "you are $1 years old"I want to be able to enter my age on the command line, when prompted, and it return the... (1 Reply)
hi,,,,
I want to create a command prompt, for example "prompt>", so my prompt need to handle commands, for example "prompt>cmd", so i want to know how to get arguments for my own commands cmd, i.e. default argc should contain arguments count and argv should point to the argument vector i.e, for... (2 Replies)
Hi,
I've a python script called aaa.py and passing an command line option " -a" to the script like, ./aaa.py -a
& Inside the script if the -a option is given I do some operation if not something else.
code looks like
./aaa.py -a
.
.
if options.a
---some operation---
if not options.a... (1 Reply)
Hi all,
I am trying to write a code for addition of n numbers which will be passed by the user as command line arguments.
I wrote the following code.
add=0
for (( i = 1 ; i <= $# ; i++ ))
do
add=`expr $i + $add`
done
#echo "sum is : $add"
input :
$./add.sh 12 32 14... (7 Replies)
Discussion started by: PranavEcstasy
7 Replies
LEARN ABOUT DEBIAN
lp-shell
lp-shell(1) General Commands Manual lp-shell(1)NAME
lp-shell - Open an interactive launchpadlib shell.
SYNOPSIS
lp-shell [-a] [-cPROGRAM] [--python] [--ipython] [service] [LP API version]
DESCRIPTION
lp-shell opens an interactive Python shell with a launchpadlib.Launchpad object "lp" which is ready for use.
It authenticates against Launchpad with the consumer name "udt-lp-shell". When using lp-shell with the -a option it will use the anonymous
login from launchpadlib.Launchpad.
By default lp-shell connects to the "production" Launchpad service using the "1.0" LP API version.
If you want to connect to another Launchpad service, call lp-shell with the service name as the second argument. lp-shell supports all ser-
vices known by launchpadlib Python module. Currently known are (list can be incomplete or outdated): "production", "staging", "dogfood".
A different LP API version can be selected by passing the API version to use as the third argument. Current supported are: "beta", "1.0"
and "devel".
OPTIONS -a Login anonymously into Launchpad.
-c PROGRAM
Don't enter a shell but only run the specified Python program and exit.
--ipython
Use an ipython shell if available (default).
--python
Use a regular python shell.
AUTHORS
lp-shell was written by Martin Pitt <martin.pitt@ubuntu.com>.
It is released under the terms of the GNU General Public License, version 2 or (at your option) any later version.
lptools 27 March 2010 lp-shell(1)