I don't think this is possible with select.
With a construct such as:
changing the file mylist inside the loop will not work at all. The shell has already done command substitution for cat mylist and substituted the output of that command in place of `cat mylist`, before running the other commands in the loop. So, the argument list to select is a static one.
Last edited by elixir_sinari; 11-09-2012 at 06:49 AM..
This User Gave Thanks to elixir_sinari For This Post:
I have a file containing a list of references and I want to run a script that will make the same action for each reference.
The input file changes every hour, it's why I want to use a script that can read in a file, record by record, and run a specific action for the reference readed.
Thanks... (1 Reply)
Hey,
examples of the input (text line):
/bla/blMOasdn234.adanif24/blabla.rar
/bla/blMOasdn234.adanif24/blabla23124.bin
/bla/bla/bla/bla/bla/bla.bin
and what I need to do is extract/select only the dir path so the output would be:
/bla/blMOasdn234.adanif24/
/bla/blMOasdn234.adanif24/... (4 Replies)
Hi all,
I have a problem with qwk command.
i have to check process status and for that i am using command
prstat -mvL 1 1
and it gives me the entire output
but when i use this command with awk like this:
prstat -mvL 1 1 | awk -F" " '{print $1,$15}'
to get first and 15th arguments.
... (3 Replies)
Okay -- I hope I ask this correctly.
I'm working on my little shell script to write vendor names and aliases to files from user input. If a user choose to add to a file, he can do that as well. I'm using a select loop for this function to list all the possible files the user can choose from.... (7 Replies)
Hi all,
Before I give up on using SELECT for my first attempt at creating a menu driven script, can anyone please advise if it is possible to include a line break for PS3, I've tried putting in a \n and it does not work.
Tried for both bash and ksh and both gives the same result. Preference... (3 Replies)
PS3="Enter corresponding number and hit enter:"
select DIR in `cat mylist` QUIT
do
if
then
echo "INVALID INPUT"
else
if ; then
my commands .....
else
break
fi
fi
REPLY=''
done
The above will return something like below :
Select from the list of... (4 Replies)
I have a select menu driven script using a case statment and cannot control what happens after a user's input is just <ENTER> or the <SPACEBAR>+<ENTER>. I want it to just hit the "MAIN" function and not redraw the options. I've look everywhere for the answer and am at a loss.
Here's the code:... (4 Replies)
Hi Folks,
I have the below feed file named abc1.txt in which you can see there is a title and below is the respective values in the rows and it is completely pipe delimited file ,.
... (3 Replies)
A lot of my scripting makes use of the 'select' command to create menu driven input. A typical example of how I use it is as:
somevar=''
PS3='Select one: '
while ]; do
select somevar in $(sqlplus -s $dbuser/$dbpw@mydb <<EOF
set echo off feedback off verify off... (7 Replies)
Discussion started by: edstevens
7 Replies
LEARN ABOUT X11R4
break
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)