I have a script test.sh which reads various inputs from a user.
When i run this script as
Output:
it doesn't ask to input for remaining read statements and auto-assigns empty values to remaining variables. however if i give 5 rows or more than 5 rows, it assigns first 5 values to the 5 variables:
Output:
Works fine here and i guess extra inputs are just ignored.
Shouldn't it wait to ask for user input for remaining variables if its not provided? Am i using it in a right way?
Last edited by bartus11; 07-20-2014 at 06:16 AM..
Reason: Please use [code][/code] tags.
I'm trying to pass a filename, or all the files in the current directory to the ls command with a script. Unsuccessful so far, here are a few of my attempts:
#!/bin/ksh
read fname
#if (( $# > 0 )); then
$fname | ls -l
#fi
this produces a long listing of all the files in my current... (4 Replies)
Hi,
I have a script which adds the user credentials to an ldap server. Im passing the variables as below..
/path/my_script $uname $pwd $environ ${deposit}
If i enter some special characters like ';' in $pwd, script returns an error which is set to display if the user enters... (5 Replies)
Hi
I have a script to which I pass multiple arguments, for example lets say the script name is "abc". I run the script like
./abc def /file <directory location>
In the above "def" is the first argument and "/file" is the second argument. I expect <directory location> that is passed after... (4 Replies)
I need to pass arguments to a shell script.My batch is calling some java program.
#################
x=$1
y=$2
java -classpath program
###################
if first parameter and second parameter is null then
java -classpath program
if first parameter is not null and second parameter is... (3 Replies)
Hi ..
Can any one please tell how to pass argument to shell script at runtime?
I want to implement funcnality just like bc, where we can provide input while script is running and can be used later in the same script.
Thanks in advance... (1 Reply)
Is there any way I could pass arguments to shellcode. My goal is to store a program in a image file, and have another program read and run the code with arguments in memory.
Currently I can store a program in a image file, then read it back to the hard-drive run it normally then delete it when... (5 Replies)
I have an for loop that reads the following file
cat param.cfg
val1:env1:opt1
val2:env2:opt2
val3:env3:opt3
val4:env4:opt4
.
.
The for loop extracts the each line of the file so that at any one point, the value of i is
val1:env1:opt1 etc...
I would like to extract each... (19 Replies)
Hi,
i have a file.txt with data
Bangalore
Chennai
Hyd
filename of the script is: new.sh
result=`cat file.txt | grep $1`
if
then
echo pass
else
echo fail
fi
i am executing the file in the cmd line as "sh new.sh Bangalore"
o/p is pass
if i give "sh new.sh delhi"
o/p is... (6 Replies)
hi All,
i am trying to pass arguments that contain space , value will be stored in variables to be used further in script , i went thru previous posting , still its not clear to how to implement for my case.
passing 3 args
test.sh it is 'fun to work in unix'
inside shell
... (3 Replies)
Dear Users,
I have installed a standalone program to do multiple sequence alignment which takes user parameters to run the program. I have multiple sequence files and want to automate this process through a bash script. I have tried to write a small bash code but its throwing errors.
Kindly... (13 Replies)
Discussion started by: biochemist
13 Replies
LEARN ABOUT V7
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)