read -p 'Enter any number, please: ' number
sleep 1
number=$( tr -d 0-9 <<< "$number" )
test -z "$number" &&
echo "Thank you" ||
echo "This is not a number"
Actually you could avoid calling external commands in this case:
Code:
read -p 'Enter any number, please: ' number
sleep 1
test -z "${number//[0-9]}" &&
echo "Thank you" ||
echo "This is not a number"
P.S. The code above uses non standard shell features, but that shouldn't be
a problem, considering that the original post uses non standard features too
I'm nearly finished my program i've got everything in place and than when i run it it comes back with the reply mv: command not found. This is the code that seems to be causing the problem.
elif
then
echo "There are more than one '$1' files in the system."
echo "Please... (2 Replies)
hi forum
i beginning with script and i want test un null variable in a schell
i just don t know the syntax here is a litle example
y=test
echo $y
unset y
echo $y (so here Y = Null)
if Y=Null
then
echo "y is null"
exit
fi (1 Reply)
hi folks,
i've got a blank hp visualize C3000 workstation and installed HP-UX 11.11. When I want to start X, I get the following error message:
# X
Fatal server error:
Couldn't open X pointer device! Is one attached?
I've connected an mouse and a keyboard with an usb/ps2 connector.... (5 Replies)
korn shell
If
then
update_smartcare_user_password "$u_id"
else
echo "Not a database user"
fi
i get this error
Syntax error at line *** : `then' is not expected.
what should i do.
I want to check whether $a is null or not. (2 Replies)
Hey,
I'm currently getting into some kernel module progamming. As a little exercise I want to read the headers out of an ELF file. My code is very simple, here is the important part:
struct file *fp;
/* ... */
fp = filp_open("some/file/on/my/pc", O_RDONLY, 0);
if(fp == NULL) {
... (15 Replies)
Hi.
Here is beginning of my script
#!/usr/local/bin/expect --
set timeout 15
spawn /usr/local/account.sh -n modify
expect "Password:" {send "mypassword\r"}
But due to some terminal control sequences (or something else, dunno exactly) my password prompt is looking like this:
and expect... (3 Replies)
Good afternoon,
I am tearing hair out over this. It should be so simple. I have an if statement to evaluate whether or not replication is working. I am testing variables from mysql to see if they are both "Yes". I have put some echo statements in to see how far the code proceeds. It always... (6 Replies)
Hi ! :)
I made this :
#!/bin/bash
rsa_dir="/etc/openvpn/easy-rsa/"
rsa_key_dir="/etc/openvpn/easy-rsa/keys/"
ccd_dir="/etc/openvpn/ccd/"
regex_special_char=''
cd $rsa_dir
while
read -p "Please can you enter the vpn's username : " username
] || ] || ] || ]
do
echo "Your entry... (10 Replies)
I have vmware on my windows PC ( hostname : acer ).
vmware has RHEL 7 ( hostname : rhel7 ) installed recently.
RHEL IP configuration
IP : 192.168.5.128
Netmask : 255.255.255.0
ssh to rhel7 works from acer using putty
resolve.conf
cat /etc/resolv.conf
nameserver 192.168.5.1
host... (12 Replies)
Discussion started by: hiten.r.chauhan
12 Replies
LEARN ABOUT DEBIAN
graphics::primitive::insets
Graphics::Primitive::Insets(3pm) User Contributed Perl Documentation Graphics::Primitive::Insets(3pm)NAME
Graphics::Primitive::Insets - Space between things
DESCRIPTION
Graphics::Primitive::Insets represents the amount of space that surrounds something. This object can be used to represent either padding
or margins (in the CSS sense, one being inside the bounding box, the other being outside)
SYNOPSIS
use Graphics::Primitive::Insets;
my $insets = Graphics::Primitive::Insets->new({
top => 5,
bottom => 5,
left => 5,
right => 5
});
METHODS
Constructor
new Creates a new Graphics::Primitive::Insets.
Instance Methods
as_array
Return these insets as an array in the form of top, right, bottom and left.
bottom
Set/Get the inset from the bottom.
equal_to
Determine if these Insets are equal to another.
left
Set/Get the inset from the left.
right
Set/Get the inset from the right.
top Set/Get the inset from the top.
zero
Sets all the insets (top, left, bottom, right) to 0.
AUTHOR
Cory Watson, "<gphat@cpan.org>"
SEE ALSO perl(1)COPYRIGHT &; LICENSE
Copyright 2008-2010 by Cory G Watson.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.12.3 2010-08-21 Graphics::Primitive::Insets(3pm)
04-14-2012
