I am trying to create a small script that can do exit if a script is executed when argument not 2
it keeps returning me
[: 10: missing ]
[: 10: missing ]
whatever number of argument I specify..
What is the script that takes a port number as parameter and displays status, whether it is available or is already used by other process
pls help (1 Reply)
Hi,
If not running a shell script file in current shell (. ./fileName) then $0 represents the executable file name. But in case of invoking shell script file in current shell then i m getting "$0 as -bash" . In such case how can i get the program name (running shell script file name)?
Thanks, (2 Replies)
Can someone please help me with this SHELL script?
I need to create a script that gets a positive number n as an argument. The script must calculate the factorial of its argument. In other words, it must calculate n!=1x2x3x...xn. Note that 0!=1.
Here is a start but I have no clue how to... (3 Replies)
I need to create a Kash script that will read two arguments. So if the user enters anything but 2 arguments then they will get and error message. If they enter the two arguments then it will print them out in reverse order. Does anyone know how i can do this? (7 Replies)
#!/bin/bash
echo "enter a file or directory name"
read name
if
then
echo " argument is file "
ls -l $name | awk '{print $1,}'
elif
echo " argument is a directory"
ls -l $name | awk '{print $1}'
fi
what i am trying to do. get input... (3 Replies)
Hey everyone,
I need to write a script that will display the number of the argument before displaying the argument itself. Here's what I have so far:
for arg in "$@"
do
echo $#:$arg
done
This returns the sum of all arguments preceding the arguments themselves.
$(script) a b c
3:a... (1 Reply)
Hi,
I have a requirement to work on script, it should take either of arguments.
wrote it as below.
#!/bin/bash
usage() {
echo "$0: missing argument OR invalid option !
Usage : $0 -m|-r|-d
}
while getopts mrdvh opt; do
case "$opt" in
m) monitor_flag=monitor;;... (1 Reply)
Hello
Does the unix korn shell provide a function to convert number entered in command line argument to text or Character so that in next step i will convert Chr to Hex (6 Replies)
Hi Experts,
I have been trying to work on a simple shell script that will just add the two argument passed to it. Here is what i tried :
#!/bin/bash
welcome(){
echo "Welcome to this Progg. which will accept two parameter"
}
main_logic(){
arg=$#
echo "Number of argument passed is... (4 Replies)
Hello !
I'm creating a CGI which allow to display graph from some data.
The datas looks like :
2020-01-13-00-00,384.00,350.00
2020-01-13-06-00,384.00,350.00
2020-01-13-12-00,384.00,350.00
2020-01-13-18-00,384.00,350.00
2020-01-14-00-00,384.00,350.00... (1 Reply)
Discussion started by: Tim2424
1 Replies
LEARN ABOUT MOJAVE
escape
escape(1) Mail Avenger 0.8.3 escape(1)NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)