04-27-2009
read from std i/p with timeout within a script
hello every one ,
this is my first participation in the forum , I hope it'll be a good start
within a script I would like to put some code to read i\p from standard i\p using read command if it reads Y it will terminate the script if it reads N it will continue execution , if no i\p is provided after a timeout it will get a default value N and continue execution.
your help is highly appreciated
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
any idea on how to timeout the read statement for ksh?
for bash u can use read -t option
-t timeout
Cause read to time out and return failure if a complete
line of input is not read within timeout seconds. This
option has ... (2 Replies)
Discussion started by: ashterix
2 Replies
2. Shell Programming and Scripting
Hi
I want both standard output and standard error of my command cmd to go to the same file log.txt. please let me know the best commandline to do this.
Thanks (2 Replies)
Discussion started by: 0ktalmagik
2 Replies
3. Programming
Hello all
Im using CC: Sun C++ 5.6 2004/07/15 and using the -library=stlport4 when linkning im getting
The fallowing error :
Undefined first referenced
symbol in file
std::ostream &std::ostream::operator<<(std::ios_base&(*)(std::ios_base&))... (0 Replies)
Discussion started by: umen
0 Replies
4. Shell Programming and Scripting
Hi All,
Does anyone know how to read multiple lines from standard input into an array and then iterate a loop for all the lines read. Below is an example pseudocode:
I need the below filenames to be read by the script into an array or something similar:
And then in the script, I... (9 Replies)
Discussion started by: bharath.gct
9 Replies
5. Shell Programming and Scripting
Hello gurus, this is part of my script:
ls -1 ${MyFile} >> ${dir_log}ListFile${Now}.tmp
FILENUM=`cat ${dir_log}ListFile${Now}.tmp| wc -l | awk '{print $1}'`>> /dev/null
if
then
writeError "ERRORE: no file in directory for type ${FileName}!" >> ${LogFileName}
Close 1
fi... (7 Replies)
Discussion started by: GERMANICO
7 Replies
6. Shell Programming and Scripting
I'm a fairly new AIX admin (disclaimer).
We have SQL scripts written by end users that use a userid and passwd to connect to our DB2 database.
Is it possible to create an "input file" that contains the db2 connect parameters and yet secure the file from the SQL creator?
i.e., they can "use"... (2 Replies)
Discussion started by: mpheine
2 Replies
7. Boot Loaders
i'm writing some code to simulate the boot progress after power on
but when i try to read the 2nd sector from a floppy disk, this operation always fail with ah=0x80h which means timeout, how can i get over this problem?
my code would be like this:
$ cat boot.S
.code16
#define SETUPLEN 4... (0 Replies)
Discussion started by: wljackhero
0 Replies
8. Linux
i'm writing some code to simulate the boot progress after power on
but when i try to read the 2nd sector from a floppy disk, this operation always fail with ah=0x80h which means timeout, how can i get over this problem?
my code would be like this:
$ cat boot.S
.code16
#define SETUPLEN 4... (0 Replies)
Discussion started by: wljackhero
0 Replies
9. UNIX for Advanced & Expert Users
i'm writing some code to simulate the boot progress after power on
but when i try to read the 2nd sector from a floppy disk, this operation always fail with ah=0x80h which means timeout, how can i get over this problem?
my code would be like this:
$ cat boot.S
.code16
#define SETUPLEN 4... (0 Replies)
Discussion started by: wljackhero
0 Replies
10. Shell Programming and Scripting
I saw several thread for this issue but none addresses my issue.
I have tried read -t but the result is read bad options
My requirement is
1. Ask for input
2. If input = y or no input in 60 seconds
then continue processing
else
exit
fi
Kindly consider this urgent. (8 Replies)
Discussion started by: rprasad
8 Replies
LEARN ABOUT SUNOS
continue
break(1) User Commands break(1)
NAME
break, continue - shell built-in functions to escape from or advance within a controlling while, for, foreach, or until loop
SYNOPSIS
sh
break [n]
continue [n]
csh
break
continue
ksh
*break [n]
*continue [n]
DESCRIPTION
sh
The break utility exits from the enclosing for or while loop, if any. If n is specified, break n levels.
The continue utility resumes the next iteration of the enclosing for or while loop. If n is specified, resume at the n-th enclosing loop.
csh
The break utility resumes execution after the end of the nearest enclosing foreach or while loop. The remaining commands on the current
line are executed. This allows multilevel breaks to be written as a list of break commands, all on one line.
The continue utility continues execution of the next iteration of the nearest enclosing while or foreach loop.
ksh
The break utility exits from the enclosed for, while, until, or select loop, if any. If n is specified, then break n levels. If n is
greater than the number of enclosing loops, the outermost enclosing loop shall be exited.
The continue utility resumes the next iteration of the enclosed for, while, until, or select loop. If n is specified then resume at the n-
th enclosed loop. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be used.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words that follow a command preceded by ** that are in the format of a variable assignment are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign, and also that word splitting and file name genera-
tion are not performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
csh(1), exit(1), ksh(1), sh( 1), attributes(5)
SunOS 5.10 17 Jul 2002 break(1)