Need help with Regular Expressions and nested loops
Ok... am going slightly loopy trying to get this working (no pun intended)
What I need is to modify this code which takes a string input then echo's each character on a seperate line, to do the same thing but to put DIGIT: in front of numbers and LETTER: in front of letters.
I know a regular expression must be used to check if it is a number, this should also be nested inside an IF statement.
Thanks again for all your help everyone
Mikey
Code:
#!/bin/bash
clear
read -p "Please enter a word: " str1
strLength=${#str1}
for ((i=1;i<=$strLength;i++)){
echo $str1 | cut -c$i
}
#must use REG-EX ^[0-9]$
#incorporate into an IF/ELSE statement
Hey, I'm writing this bash script that will test print me many copies of the same program but with different combos of 4 variables being between 1 and 100. Here's the code:
#! /bin/bash
x=0
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do
for ((b=1; b < 101; b++))
do
for ((c=1; c < 101; c++))
do
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You can use one while inside another?
I made the following script (without really knowing if I can use two while) to get 3 numbers different from each other at random:
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while
do
num2=$(( $RANDOM % 10 ))
done
num3=$num1
while
do
while
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The following script attempts to enumerate all users in all groups in the group file(GROUP) and echo the following information:
GROUP ---> USER
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Discussion started by: Azrael
5 Replies
LEARN ABOUT OSF1
line
line(1) General Commands Manual line(1)NAME
line - Reads one line from standard input
SYNOPSIS
line
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
line: XCU5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
OPTIONS
None
DESCRIPTION
The line command copies one line, up to and including a newline, from standard input and writes it to standard output. Use this command
within a shell command file to read from your terminal. The line command always writes at least a newline character.
NOTES
The line utility has no internationalization features and is marked LEGACY in XCU Issue 5. Use the read utility instead.
EXIT STATUS
Success. End-of-File.
EXAMPLES
To read a line from the keyboard and append it to a file, enter: echo 'Enter comments for the log:' echo ': c' line >>log
This shell procedure displays the message: Enter comments for the log:
It then reads a line of text from the keyboard and adds it to the end of the file log. The echo ': c' command displays a : (colon)
prompt. See the echo command for information about the c escape sequence.
SEE ALSO
Commands: echo(1), ksh(1), read(1), Bourne shell sh(1b), POSIX shell sh(1p)
Functions: read(2)
Standards: standards(5)line(1)
05-26-2011
