Checking the user input in perl for characters and length Post: 302997086

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creating a fixed length output from a variable length input

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Disallowing certain characters from user input

Hey, I've create a custom useradd script, and I don't want the person creating the user to be able to put comma's in any of the input fields, because it could corrupt the /etc/passwd file. I don't care what other characters they put in there, so is there a way I can just check all the input...

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#!/usr/bin/bash ###script to input four characters. wxyz echo "input first string" read instring1 echo "input second string" read instring2 ## echo "first string is:" $instring1 echo "second string is:" $instring2 ##IF instring1 or instring2 are NOT 4 characters (xxxx) , exit 1. ##how?? ...

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user input in perl?

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User input in perl code

Hello friends . I am newbie to perl scripting but still managed to write a code but i am stuck at a place where i need help . Below is the code and can someone help me in taking user input for changing the font size for a html table .Thank you in advance #!/bin/ksh echo " Enter the Directory...

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Perl to read user input

I am creating a bash that uses perl . The below code closes before the input is entered. If I run the perl as a .pl it is fine. What am I doing wrong? Thank you :). #!/bin/bash cd 'C:\Users\cmccabe\Desktop\wget' wget -O getCSV.txt http://xxx.xx.xxx.xxx/data/getCSV.csv print...

LEARN ABOUT V7

arithmetic

ARITHMETIC(6)							   Games Manual 						     ARITHMETIC(6)

NAME

       arithmetic - provide drill in number facts

SYNOPSIS

       /usr/games/arithmetic [ +-x/ ] [ range ]

DESCRIPTION

       Arithmetic types out simple arithmetic problems, and waits for an answer to be typed in.  If the answer is correct, it types back "Right!",
       and a new problem.  If the answer is wrong, it replies "What?", and waits for another answer.  Every twenty problems, it publishes  statis-
       tics on correctness and the time required to answer.

       To quit the program, type an interrupt (delete).

       The  first optional argument determines the kind of problem to be generated; +-x/ respectively cause addition, subtraction, multiplication,
       and division problems to be generated.  One or more characters can be given; if more than one is given, the  different  types  of  problems
       will be mixed in random order; default is +-

       Range  is a decimal number; all addends, subtrahends, differences, multiplicands, divisors, and quotients will be less than or equal to the
       value of range.	Default range is 10.

       At the start, all numbers less than or equal to range are equally likely to appear.  If the respondent makes a mistake, the numbers in  the
       problem which was missed become more likely to reappear.

       As a matter of educational philosophy, the program will not give correct answers, since the learner should, in principle, be able to calcu-
       late them.  Thus the program is intended to provide drill for someone just past the first learning stage, not  to  teach  number  facts	de
       novo.  For almost all users, the relevant statistic should be time per problem, not percent correct.

																     ARITHMETIC(6)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

creating a fixed length output from a variable length input

Discussion started by: r1500

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Disallowing certain characters from user input

Discussion started by: paqman

3. AIX

Is the Length of User ID for AIX Limit to 8 Characters?

Discussion started by: meihua_t

4. Shell Programming and Scripting

exit script if user input not four characters

Discussion started by: ajp7701