Sponsored Content
Top Forums Shell Programming and Scripting Bash script to accept password and replace characters with * as they are typed Post 302559622 by krisdames on Tuesday 27th of September 2011 05:05:55 PM
Old 09-27-2011
Bash script to accept password and replace characters with * as they are typed

I googled this and couldn't find an answer, so I rolled my own. Here it is, hope it helps. Feel free to improve on it.

Code:
#!/bin/bash
PWORD=
ANYKEY=0
echo -n "Password:  "
until [ -z "$ANYKEY" ]
do
    read -N 1 -s ANYKEY
    echo -n "*"
    PWORD="$PWORD$ANYKEY"
done
echo
echo $PWORD
exit

 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to set a variable to accept alpha-numeric characters?

I am working on a shell program that needs to accept alpha-numeric input (i.e., P00375); when I use a simple 'read' statement to read in the input (i.e., read LOG), I receive the message "p00375: bad number". How must I adjust my input statement to accept alpha-numerics? Thanks! Brent (3 Replies)
Discussion started by: bcaunt
3 Replies

2. UNIX for Dummies Questions & Answers

ASCII character to accept logon password

Hey all, Just found your forum...Looks super rich with info! Can't wait to get through it all. I am currently writing a web app in .net that telnets into a unix server (require uid + passwd), runs a command, and returns that output to be displayed on the web page. I have gotten through the... (8 Replies)
Discussion started by: gord
8 Replies

3. Shell Programming and Scripting

Bash script - stripping away characters that can't be used in filenames

I want to create a temp file which is named based on a search string. The search string may contain spaces or characters that aren't supposed to be used in filenames so I want to strip those out. My thought was to use 'tr' with but the result is the opposite of what I want: $ echo "test... (5 Replies)
Discussion started by: mglenney
5 Replies

4. Shell Programming and Scripting

Bash: using SED, trying to replace some characters except first or last line

Hi, I require to replace 2 items: 1. replace start of all lines in a file with ' except the first line 2. replace end of all lines in a file with '||chr( except last line I am able to do the entire file using sed -e s/^/\'/g -e s/$/\'\|\|chr\(/g "$file" > newfile.txt but am not yet able... (0 Replies)
Discussion started by: Chella15
0 Replies

5. UNIX for Dummies Questions & Answers

Bash: using SED, trying to replace some characters except first or last line

Hi, I require to replace 2 items: 1. replace start of all lines in a file with ' except the first line 2. replace end of all lines in a file with '||chr( except last line I am able to do the entire file using sed -e s/^/\'/g -e s/$/\'\|\|chr\(/g "$file" > newfile.txt but am not yet... (3 Replies)
Discussion started by: Chella15
3 Replies

6. Shell Programming and Scripting

bash script using scp (pw typed by hand) followed by removal of files

Hello, I tried to write a bash script (code is below) that does scp files that contain a certain string, and that subsequently deletes only those files that have been copied (in my case new files are created every second so it is important to only delete those that have been copied). The key is... (0 Replies)
Discussion started by: kjartan
0 Replies

7. Shell Programming and Scripting

Make a password protected bash script resist/refuse “bash -x” when the password is given

I want to give my long scripts to customer. The customer must not be able to read the scripts even if he has the password. The following command locks and unlocks the script but the set +x is simply ignored. The code: read -p 'Script: ' S && C=$S.crypt H='eval "$((dd if=$0 bs=1 skip=//|gpg... (7 Replies)
Discussion started by: frad
7 Replies

8. How to Post in the The UNIX and Linux Forums

How to replace value of password tag in xml with blanks when special characters are there?

Hi All, I am trying to replace the values inside <password> tag in an xml file but it doesn't replace certain passwords: For eg: Server/home/sperinc>cat TextXML.txt <appIds> <entry name="AccountXref"> <type id="ldap"> <realm>nam</realm> ... (7 Replies)
Discussion started by: saroopkris85
7 Replies

9. Shell Programming and Scripting

Bash script for password changes help

I am super new to scripting and I am trying to create a bash script that is interactive that will change other user passwords as well as a few other thing (ie. change SMB pw, see pw expiration,lock/unlock user). I have started it by making it check to see if the username entered is in the... (2 Replies)
Discussion started by: thumbelina
2 Replies
INTVAL(3)								 1								 INTVAL(3)

intval - Get the integer value of a variable

SYNOPSIS
int intval (mixed $var, [int $base = 10]) DESCRIPTION
Returns the integer value of $var, using the specified $base for the conversion (the default is base 10). intval(3) should not be used on objects, as doing so will emit an E_NOTICE level error and return 1. PARAMETERS
o $var - The scalar value being converted to an integer o $base - The base for the conversion Note If $base is 0, the base used is determined by the format of $var: o if string includes a "0x" (or "0X") prefix, the base is taken as 16 (hex); otherwise, o if string starts with "0", the base is taken as 8 (octal); otherwise, o the base is taken as 10 (decimal). RETURN VALUES
The integer value of $var on success, or 0 on failure. Empty arrays return 0, non-empty arrays return 1. The maximum value depends on the system. 32 bit systems have a maximum signed integer range of -2147483648 to 2147483647. So for example on such a system, intval('1000000000000') will return 2147483647. The maximum signed integer value for 64 bit systems is 9223372036854775807. Strings will most likely return 0 although this depends on the leftmost characters of the string. The common rules of integer casting apply. EXAMPLES
Example #1 intval(3) examples The following examples are based on a 32 bit system. <?php echo intval(42); // 42 echo intval(4.2); // 4 echo intval('42'); // 42 echo intval('+42'); // 42 echo intval('-42'); // -42 echo intval(042); // 34 echo intval('042'); // 42 echo intval(1e10); // 1410065408 echo intval('1e10'); // 1 echo intval(0x1A); // 26 echo intval(42000000); // 42000000 echo intval(420000000000000000000); // 0 echo intval('420000000000000000000'); // 2147483647 echo intval(42, 8); // 42 echo intval('42', 8); // 34 echo intval(array()); // 0 echo intval(array('foo', 'bar')); // 1 ?> NOTES
Note The $base parameter has no effect unless the $var parameter is a string. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.1.0 | | | | | | | Throws E_NOTICE and returns 1, when an object is | | | passed to $var. | | | | +--------+---------------------------------------------------+ SEE ALSO
boolval(3), floatval(3), strval(3), settype(3), is_numeric(3), Type juggling, BCMath Arbitrary Precision Mathematics Functions. PHP Documentation Group INTVAL(3)
All times are GMT -4. The time now is 09:21 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy