Sponsored Content
Full Discussion: Characters in a single read
Top Forums UNIX for Dummies Questions & Answers Characters in a single read Post 302845503 by Corona688 on Wednesday 21st of August 2013 03:39:19 PM
Old 08-21-2013
The question is nonsense. A program can ask for as much, or as little, as it needs to, and the amount it actually it gets may be equal to or less than that -- subject to things like interrupts and end-of-file.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Read line with a single key press...

I would really like to have a script that will accept the key press from the user with out having to press the enter key afterwards. i.e. echo "Press Y to print \c" read YesNo At this point the user has to press the enter key to continue. Is there a way to accept the key press from the... (3 Replies)
Discussion started by: jagannatha
3 Replies

2. UNIX for Dummies Questions & Answers

Sed - Lower case single characters

Hello, I have a file where I am supposed to convert all the single i characters to uppercase, but when I try, it converts all the i's inside of words to uppercase as well. I tried doing: cat filename | sed 's/i/I/g' but that obviously does not work. Any help would be greatly... (6 Replies)
Discussion started by: zlindner
6 Replies

3. Shell Programming and Scripting

Read Single Value From File With Perl

Hi all, I have what I would have thought was a very simple problem but I can' find an elegant solution. I have a file which has a single value you in it, say 194. All I want my perl script to do is open the file, read the value and assign that value to a variable. I've done stuff like... (1 Reply)
Discussion started by: Donkey25
1 Replies

4. Shell Programming and Scripting

Multiple characters including single quote in delimiter

Hello, I need to replace the comma to something else between the single quote: 1aaa,bbb,'cc,cc','ddd',1 2aaa,bbb,'ccc','d,d',0 to 1aaa,bbb,'cc<comma>cc','ddd',1 2aaa,bbb,'ccc','d<comma>d',0 Can someone help? Thanks. (2 Replies)
Discussion started by: bgirl
2 Replies

5. Shell Programming and Scripting

Bash KeyPress (or Read Single Character)

Hi, I'm sorry if this has already been posted somewhere but I can't seem to find it on the forums (or anywhere on google :( ) I am writing a script where a user must enter a single character to perform an action. For example, Press Q to Quit or R to Refresh Basically I am stuggling... (5 Replies)
Discussion started by: Ste_Moore01
5 Replies

6. Shell Programming and Scripting

read single chars

This reads single keystrokes and produces an output: #! /bin/bash while : ; do read -s -n 1 >/dev/null 2>&1 echo ${REPLY} done | awk '{print}' This second one don't. Even though these examples make no sense; the real code is more complicated. Who knows what the problem is... (2 Replies)
Discussion started by: elbrand
2 Replies

7. Shell Programming and Scripting

Read Embedded Newline characters with read (builtin) in KSH93

Hi Guys, Happy New Year to you all! I have a requirement to read an embedded new-line using KSH's read builtin. Here is what I am trying to do: run_sql "select guestid, address, email from guest" | while read id addr email do ## Biz logic goes here done I can take care of any... (6 Replies)
Discussion started by: a_programmer
6 Replies

8. Shell Programming and Scripting

How to remove characters enclosed in single quotes?

How to remove characters enclosed in single quotes? My data is something like this (03/22/2011 08:17:26.650) : ( -> '1' -> '1-1-3' -> '6' -> '1' -> 'SALMOR58BB4' aaaaa bbbbbb ccccc ((dddd)) I want the output to be (03/22/2011 08:17:26.650) : ( -> -> -> -> -> aaaaa... (2 Replies)
Discussion started by: rdhanek
2 Replies

9. Shell Programming and Scripting

how to read multi line characters in a single column

Hi, I have file in which fields are pipe (|) separated and the record separator is new line (\n). But sometime I am getting a field value which is spread across multiple line. Basically I am getting a file from another system in the below format and needs to process the file and load data into a... (3 Replies)
Discussion started by: satyaatcgi
3 Replies

10. Shell Programming and Scripting

Read 2 input and produce it in single ouput?

Hi all. I’ve 2 inputs here and would like to produce it in single ouput. I’ve drafted simple shell script but not sure how to put all this together. The final output should be “GROUP-XYZ” instead of “TEST” Please advise. INPUT1 GROUP-XYZ INPUT2 type8code0@box:~/dbedit$ cat... (8 Replies)
Discussion started by: type8code0
8 Replies
QUIZ(6) 							 BSD Games Manual							   QUIZ(6)

NAME
quiz -- random knowledge tests SYNOPSIS
quiz [-t] [-i file] [question answer] DESCRIPTION
The quiz utility tests your knowledge of random facts. It has a database of subjects from which you can choose. With no arguments, quiz displays the list of available subjects. The options are as follows: -t Use tutorial mode, in which questions are repeated later if you didn't get them right the first time, and new questions are presented less frequently to help you learn the older ones. -i Specify an alternative index file. Subjects are divided into categories. You can pick any two categories from the same subject. quiz will ask questions from the first cate- gory and it expects answers from the second category. For example, the command ``quiz victim killer'' asks questions which are the names of victims, and expects you to answer with the cause of their untimely demise, whereas the command ``quiz killer victim'' works the other way around. If you get the answer wrong, quiz lets you try again. To see the right answer, enter a blank line. Index and Data File Syntax The index and data files have a similar syntax. Lines in them consist of several categories separated by colons. The categories are regular expressions formed using the following meta-characters: pat|pat alternative patterns {pat} optional pattern [pat] delimiters, as in pat[pat|pat]pat In an index file, each line represents a subject. The first category in each subject is the pathname of the data file for the subject. The remaining categories are regular expressions for the titles of each category in the subject. In data files, each line represents a question/answer set. Each category is the information for the question/answer for that category. The backslash character (``'') is used to quote syntactically significant characters, or at the end of a line to signify that a continuation line follows. If either a question or its answer is empty, quiz will refrain from asking it. FILES
/usr/share/games/quiz The default index and data files. BUGS
quiz is pretty cynical about certain subjects. BSD
May 31, 1993 BSD
All times are GMT -4. The time now is 11:44 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy