11-16-2001
Very interesting. I've never seen a way to read a single character from a shell script before. But I want to be able to actually catch the character that is typed. So I changed the dd statement to:
result=`dd bs=1 count=1 2>/dev/null`
which seems to be working. Very cool trick!
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I got this from one of my instructors years ago and I use it constantly:
echo "Press any key to continue\c"
oldstty=$(stty -g)
stty -icanon -echo min 1 time 0
dd bs=1 count=1 2>/dev/null
stty "$oldstty" (0 Replies)
Discussion started by: keelba
0 Replies
2. Programming
hello, everyone. I was wondering if anyone could help me out and tell me how to set up the isdigit() (or another way) to ake sure that the input are all digits and not chars. Also, the way my program is set now you need to rerun it in order to renter the data. Is there any way that i can get it to... (1 Reply)
Discussion started by: bebop1111116
1 Replies
3. Shell Programming and Scripting
Did not use 'wait' yet.
How I understand by now the wait works only for child processes, started background.
Is there any other way to watch completion of any, not related process (at least, a process, owned by the same user?)
I need to start a background process, witch will be waiting... (2 Replies)
Discussion started by: alex_5161
2 Replies
4. Solaris
My first post.
I need a simple way to log user activity to a unique file for each user and also if any user su's to root, I would like to capture that activity and have it in the unique file for that user. (1 Reply)
Discussion started by: powerrack
1 Replies
5. Shell Programming and Scripting
So I have a weird question for my unix shell script. I wrote a shell script that does several things, but one of the things it does is call an executable. The executable then proceeds to start asking me questions, which it won't proceed until an input is entered. The answer to the questions is... (4 Replies)
Discussion started by: HelpMeProgram
4 Replies
6. Shell Programming and Scripting
Hi,
echo "Enter file name of input file list along with absolute path : "
read inputFileList
if
then
for string in `cat inputFileList`
do
echo $string
done
else
echo " file does not exist"
fi
From the above code, if the user enters a invalid file... (1 Reply)
Discussion started by: i.srini89
1 Replies
7. Shell Programming and Scripting
i have a script which takes input from user, if user gives either Y/y then it should continue, else it should quit by displaying user cancelled.
#!/bin/sh
echo " Enter your choice to continue y/Y OR n/N to quit "
read A
if
then
echo " user requested to continue "
##some commands... (7 Replies)
Discussion started by: only4satish
7 Replies
8. Shell Programming and Scripting
Hello.
I am running 2 scripts : script_1 and script_2
These scripts are run as root
Script 2 contains :
#!/bin/bash
#
# ~/bin/script_2
#
E_BAD_PARAM=115
#
date2stamp () {
date --date "$1" +%Y-%m-%d___%H:%M:%S
}
#
USER_NAME=$1
NB_PARAM=$#
PARAM0=$0 (2 Replies)
Discussion started by: jcdole
2 Replies
9. Shell Programming and Scripting
I am trying to allow a user to enter in text and then store that text in a variable $gene to run in an awk command in which those values are used to run some calculations. I am getting syntax errors however, when I try. Thank you :).
The awk runs great if it is a pre-defined file that is used,... (7 Replies)
Discussion started by: cmccabe
7 Replies
LEARN ABOUT OPENDARWIN
tclsh
tclsh(1) Tcl Applications tclsh(1)
__________________________________________________________________________________________________________________________________________________
NAME
tclsh - Simple shell containing Tcl interpreter
SYNOPSIS
tclsh ?-encoding name? ?fileName arg arg ...?
_________________________________________________________________
DESCRIPTION
Tclsh is a shell-like application that reads Tcl commands from its standard input or from a file and evaluates them. If invoked with no
arguments then it runs interactively, reading Tcl commands from standard input and printing command results and error messages to standard
output. It runs until the exit command is invoked or until it reaches end-of-file on its standard input. If there exists a file .tclshrc
(or tclshrc.tcl on the Windows platforms) in the home directory of the user, interactive tclsh evaluates the file as a Tcl script just
before reading the first command from standard input.
SCRIPT FILES
If tclsh is invoked with arguments then the first few arguments specify the name of a script file, and, optionally, the encoding of the |
text data stored in that script file. Any additional arguments are made available to the script as variables (see below). Instead of
reading commands from standard input tclsh will read Tcl commands from the named file; tclsh will exit when it reaches the end of the
file. The end of the file may be marked either by the physical end of the medium, or by the character, "