Ksh Checking if string has 2 characters and does not contain digits?

Login or Register to Ask a Question and Join Our Community

Ksh Checking if string has 2 characters and does not contain digits?

Tags

beginners, characters, ksh, string

Top Forums UNIX for Dummies Questions & Answers Ksh Checking if string has 2 characters and does not contain digits?

04-08-2008

Registered User

14, 0

Join Date: Apr 2008

Last Activity: 2 May 2008, 1:43 PM EDT

Posts: 14

Thanks Given: 0

Thanked 0 Times in 0 Posts

Ksh Checking if string has 2 characters and does not contain digits?

How could I check if a string variable contains at least (or only) 2 characters, and check and make sure that the string does not contain any numeric digits?...I need to know how to do this as simple as possible. and I am using the Ksh shell. Thanks.

developncode

View Public Profile for developncode

Find all posts by developncode

04-08-2008

Registered User

3,653, 12

Join Date: Mar 2008

Last Activity: 28 March 2011, 6:41 AM EDT

Location: /there/is/only/bin/sh

Posts: 3,653

Thanks Given: 0

Thanked 12 Times in 10 Posts

Code:

case $string in
  *[0-9]*) echo ouch, numbers >&2;
      implode --fatally; meditate --guru; exit 127;;
  ??) echo exactly two characters, what joy;;
  *) echo ouch, not exactly two characters >&2;
      burn --stake --confessions; inquisition --spanish; reboot -h now;;
esac

era

View Public Profile for era

Find all posts by era

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Random Password generator with 2 digits and 6 characters

I am using the below to random generate a password but I need to have 2 numeric characters and 6 alphabetic chars head /dev/urandom | tr -dc A-Za-z0-9 | head -c 8 ; echo '' 6USUvqRB ------ Post updated at 04:43 PM ------ Any Help folks - Can the output be passed onto a sed command to...

2. Shell Programming and Scripting

Extract n-digits from string in perl

Hello, I have a log file with logs such as 01/05/2017 10:23:41 : file.log.38: database error, MODE=SINGLE, LEVEL=critical, STATE: 01170255 (mode main how can i use perl to extract the 8-digit number below from the string 01170255 Thanks

3. Shell Programming and Scripting

ksh check for non printable characters in a string

Hi All, I am trying to find non-printable characters in a string. The sting could have alphanumeric, puntuations and characters like (*&%$#.') but not non-printable (or that is what I think they are called) which are introduced when you copy any text from DOS to unix box. Input string1:...

4. Shell Programming and Scripting

awk search between 2 digits a string

I would like to search between two a string. I thought this would be easy. The is always at the beginning of a line. The code: gawk '/^/{d=$1},/searchstring/,/^(d+1)/' or gawk '/^/,/searchstring/,/^/' did not return the desired result. inputfile.txt 999 some text searchstring some...

5. UNIX for Dummies Questions & Answers

locate special characters and digits using grep

Hello, i have a file called test hello1 "how" are you4 good"bye" good7bye i am trying to print all lines from test that either end with a digit or contain a double quote character anywhere on the line. i did grep -n '$' test and was able to print lines ending with digits. i also did...

6. Shell Programming and Scripting

extract digits from a string in unix

Hi all, i have such string stored in a variable var1 = 00000120 i want the o/p var1 = 120 is it possible to have such o/p in ksh/bash ... thanx in advance for the help sonu

7. Shell Programming and Scripting

find the last digits of a string

print out 201 in following string, Please note the chars before 201 are random, no fixed format. ua07app201

8. UNIX for Dummies Questions & Answers

ksh Checking if variable has 5 digits

How could I check if a numeric variable has 5 digits in KSH...I have a zipcode variable that I know will always be 5 digits, and I want to print out an error if it is less or more than 5 digits the problem is that I have it as: if ] but this won't work because the statement doesn't see 0001 as...

9. Shell Programming and Scripting

Extract digits at end of string

I have a string like xxxxxx44. What's the best way to extract the digits (one or more) in a ksh script? Thanks

10. UNIX for Dummies Questions & Answers

to check if a string has only digits

Hi guys, I am not very experienced in writing ksh scripts and I am trying to write a piece of code that indicates if a given string contains only digits and no alphabet (upper or lower case). If i write it my way it would turn out to have a lot of comparisons.. :eek: Thanks a lot in...

Login or Register to Ask a Question