Sponsored Content
Top Forums Shell Programming and Scripting Unix Shell basic loop massive n00b Post 302552120 by Corona688 on Thursday 1st of September 2011 04:14:17 PM
Old 09-01-2011
I asked what the users.db looked like too, and noted that my grep solution probably doesn't do what you want because I don't know what users.db looks like...

Code:
while true
do
        read ID
        if [ "${#ID}" -ne 3]
        then
                echo "wrong number of digits"
                continue
        fi

        if ! [ -z "${ID/[0-9]*/}" ]
        then
                echo "Not all digits"
                continue
        fi

        if grep "$ID" users.db > /dev/null
        then
                echo "The string '$ID' exists anywhere at all in users.db"
                continue
        fi
        break # get out of loop
done

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Absolute n00b questions about Unix / Linux

Hi All, I have absolutely no experince with either one, and would LOVE to start from somewhere! So please guide me to some web sites (beside these great forums of course!) that I can obtain n00b information. (Books, links, resources, etc.) What software OS? should I begin with? I have heard... (2 Replies)
Discussion started by: CodeHunter
2 Replies

2. UNIX for Dummies Questions & Answers

A basic question of FOR loop

Hi, have a basic query. Please see the below code: list="one two three" for var in $list ; do echo $var list="nolist" Done Wht if I want to print only first/ last line in the list Eg one & three Regards er_ashu (3 Replies)
Discussion started by: er_ashu
3 Replies

3. Shell Programming and Scripting

unix shell basic

need some help badly. if i had a file with content of few lines like the followings. 1183724770.651 0.049 137.157.56.169 200 415 GET http://venus/client/clients.xml "text/xml" 1183724770.651 0.049 141.183.101.250 200 415 GET http://venus/client/clients.xml "text/xml" using what command... (1 Reply)
Discussion started by: akagi07
1 Replies

4. Programming

Creating a basic UNIX shell script for chatting

Hey guys, This is quite simply what I'm trying to make: A program that runs in a UNIX terminal that you can output text messages to from another machine. These text messages would be prepended with a customized prompt. I'd also like to have the window spew out random dumps of flavor text not... (1 Reply)
Discussion started by: AcerAspirant
1 Replies

5. Shell Programming and Scripting

Shell Scripting n00b

Hey Guys! I was hoping for some help with a simple script I'm trying to use. I have the script set up to pull some simple information out of a database .txt file and sed it into a preexisting template for assignment cover letters. The problem seems to be someplace in the sed statement but I... (5 Replies)
Discussion started by: BFeicht
5 Replies

6. Shell Programming and Scripting

Help required on basic Unix Bourne Shell Script

Howdy People :), I'm a newbie & its my first question here. I've started learning Unix Bourne Shell scripting recently and struggling already :p Can someone PLEASE help me with the following problem. Somehow my script is not working. Display an initial prompt of the form: Welcome to... (1 Reply)
Discussion started by: methopoth
1 Replies

7. Shell Programming and Scripting

which is the Very basic certification on unix shell scripting?

Hi, I am very new to this forum, can any one tell me which is the very basic certification on unix shell scripting? please give me an advice on this. (1 Reply)
Discussion started by: Manjesh
1 Replies

8. Shell Programming and Scripting

Shell pipeline help for a n00b

I need to read input from a file, and make sure nothing prints after column 72. basically, ignore input after character 72 until the next newline character. Any help is appreciated. I have been searching forever! (10 Replies)
Discussion started by: Gbear
10 Replies

9. UNIX for Dummies Questions & Answers

Basic loop awk/shell script question..

Hi, Sorry if this is a newbie question. I guess you can use either awk or shell script for this sequence of operations, but knowing very little about either of them I'm not sure how I should try to write this. The basic objective is to copy certain files that are scattered all over my... (10 Replies)
Discussion started by: pc2001
10 Replies

10. Shell Programming and Scripting

Basic FOR loop with break

Oracle Linux : 6.4/bash shell In the below I want to break out of the loop when it enters the 5th iteration. #!/bin/bash for i in 1 2 3 4 5 6 do echo "$i" if echo "Oh Nooo... i = $i. I need to stop the iteration and jump out of the loop" then break fi done But, it only... (3 Replies)
Discussion started by: John K
3 Replies
ttk_image(n)							 Tk Themed Widget						      ttk_image(n)

__________________________________________________________________________________________________________________________________________________

NAME
ttk_image - Define an element based on an image SYNOPSIS
ttk::style element create name image imageSpec ?options? _________________________________________________________________ DESCRIPTION
The image element factory creates a new element in the current theme whose visual appearance is determined by Tk images. imageSpec is a list of one or more elements. The first element is the default image name. The rest of the list is a sequence of statespec / value pairs specifying other images to use when the element is in a particular state or combination of states. OPTIONS
Valid options are: -border padding padding is a list of up to four integers, specifying the left, top, right, and bottom borders, respectively. See IMAGE STRETCHING, below. -height height Specifies a minimum height for the element. If less than zero, the base image's height is used as a default. -padding padding Specifies the element's interior padding. Defaults to -border if not specified. -sticky spec Specifies how the image is placed within the final parcel. spec contains zero or more characters "n", "s", "w", or "e". -width width Specifies a minimum width for the element. If less than zero, the base image's width is used as a default. IMAGE STRETCHING
If the element's allocated parcel is larger than the image, the image will be placed in the parcel based on the -sticky option. If the image needs to stretch horizontally (i.e., -sticky ew) or vertically (-sticky ns), subregions of the image are replicated to fill the par- cel based on the -border option. The -border divides the image into 9 regions: four fixed corners, top and left edges (which may be tiled horizontally), left and right edges (which may be tiled vertically), and the central area (which may be tiled in both directions). EXAMPLE
set img1 [image create photo -file button.png] set img2 [image create photo -file button-pressed.png] set img3 [image create photo -file button-active.png] style element create Button.button image [list $img1 pressed $img2 active $img3] -border {2 4} -sticky we SEE ALSO
ttk::intro(n), ttk::style(n), ttk_vsapi(n), image(n), photo(n) KEYWORDS
style, theme, appearance, pixmap theme, image Tk 8.5 ttk_image(n)
All times are GMT -4. The time now is 07:17 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy