Sponsored Content
Full Discussion: Need help with read command
Top Forums UNIX for Beginners Questions & Answers Need help with read command Post 302979148 by RudiC on Wednesday 10th of August 2016 03:22:19 AM
Old 08-10-2016
As you are using bash, did you consider the buitltin read's -s option:? man bash:
Quote:
read [-ers] [-u fd] [-t timeout] [-a aname] [-p prompt] [-n nchars] [-d delim] [name ...] .
.
.
-s Silent mode. If input is coming from a terminal, characters are not echoed.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

read command

'Morning vmstat 1 1|sed 1,2d|awk '{printf("%s\n",$1)}'|read var echo $var This syntax run on AIX (ksh) but not on linux (bash). I think that problem is the read command, because the following syntax is ok : vmstat 1 1|sed 1,2d|awk '{printf("%s\n",$1)}' Could someone help me! regards... (16 Replies)
Discussion started by: nymus7
16 Replies

2. Shell Programming and Scripting

read command

I have file which is space filled likE below Note: here spaces are replaced by |. When I use read command to read this file all the spaces are truncated only the default space is not removed. The output is Note: here spaces are replaced by |. Can this default truncation be override? (4 Replies)
Discussion started by: COD
4 Replies

3. Shell Programming and Scripting

Regarding read command

Hi all, What does -u option indicates in read command. while read -u var1 do . . done < file.txt (1 Reply)
Discussion started by: krishna_gnv
1 Replies

4. Shell Programming and Scripting

read command in while

hi all iam not able use read command in the while loop in the following program while read line do echo $line echo "enter name" read name echo "your have entered $name" done < work.txt THE READ COMMAND INSIDE THE WHILE LOOP IS NOT WORKING, IS ANY OTHER WAY TO SOLVE THIS... (7 Replies)
Discussion started by: avi.skynet
7 Replies

5. Shell Programming and Scripting

read command

Is there a way to use the READ command and force the user to enter a non-zero length string? If the user enters a zero length string the user input is rejected. code: print "what is the answer: \n" read answer (2 Replies)
Discussion started by: djehresmann
2 Replies

6. UNIX for Dummies Questions & Answers

Read command

Hi everyone, I have problem while writing a shell script for linux (Red Hat). First I need to create a read command. I tried to google this but so far I can't sort this out. I hope you will be able to help me. I have to read a file like this : GESTION_DATA_SET_variable1_variable2 ... (2 Replies)
Discussion started by: Aswex
2 Replies

7. UNIX for Dummies Questions & Answers

read command - using output from command substitution

Hey, guys! Trying to research this is such a pain since the read command itself is a common word. Try searching "unix OR linux read command examples" or using the command substitution keyword. :eek: So, I wanted to use a command statement similar to the following. This is kinda taken... (2 Replies)
Discussion started by: ProGrammar
2 Replies

8. Shell Programming and Scripting

read command

Hello guys, I am trying to a script that reads from key board and use the entered value in the next step. Example: enter folder name read $folder (i will give work) cd /main/$folder/ pwd it should print /main/work ---------- Post updated at 03:31 PM ----------... (1 Reply)
Discussion started by: sharath24
1 Replies

9. Shell Programming and Scripting

Read from file and execute the read command

Hi, I am facing issues with the below: I have a lookup file say lookup.lkp.This lookup.lkp file contains strings delimited by comma(,). Now i want to read this command from file and execute it. So my code below is : Contents in the lookup.lkp file is : c_e,m,a,`cd $BOX | ls cef_*|tail... (7 Replies)
Discussion started by: vital_parsley
7 Replies

10. UNIX for Beginners Questions & Answers

Read command

Trying to use the read command. How do you add a 2nd option? In this example I'd like to offer two options, pre and post. If you answer pre, you get one output but if you answer post, you get another output. echo Is this pre or post? read pre if then echo You have typed pre. fi (6 Replies)
Discussion started by: jimmyf
6 Replies
LIBBASH(7)							  libbash Manual							LIBBASH(7)

NAME
libbash -- A bash shared libraries package. DESCRIPTION
libbash is a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may want to load and use in scripts of your own. It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries. Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1). A bash shared library that can be loaded using ldbash(1) must answer 4 requirments: 1. It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash). 2. It must contain a line that begins with '#EXPORT='. That line will contain (after the '=') a list of functions that the library exports. I.e. all the function that will be usable after loading that library will be listed in that line. 3. It must contain a line that begins with '#REQUIRE='. That line will contain (after the '=') a list of bash libraries that are required for our library. I.e. every bash library that is in use in our bash library must be listed there. 4. The library must be listed (For more information, see ldbashconfig(8)). Basic guidelines for writing library of your own: 1. Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions. 2. Try to declare all variables intended for internal use as local. 3. Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with: __<library_name>_ For example, internal function myfoosort of hashstash library should be named as __hashstash_myfoosort This helps to avoid conflicts in global name space when using libraries that come from different vendors. 4. See html manual for full version of this guide. AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <ril@ran4.net> SEE ALSO
ldbash(1), ldbashconfig(8), getopts(1), hashstash(1) colors(1) messages(1) urlcoding(1) locks(1) Linux Epoch Linux
All times are GMT -4. The time now is 07:45 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy