You will need to change the structure of the program to have a main loop to incorporate both timers, or use a sort of inter-process communication. One way would be to send a signal to the parent shell. Another would be a named fifo. Since we are just incrementing a number, we can use the simple signaling.
Last edited by neutronscott; 04-20-2012 at 09:40 AM..
Reason: kill children
hi,
How do i access individual characters in a string variable value .
say i have var=20060731.
How do i retrieve 2,0,0,6 etc chars separately.
Is there any Field separator in cut or awk to achieve the same?
Regards,
Suman (2 Replies)
Hi,
Can anyone assist me on how to access a variable in a shell script from another script.
for ex,
Script-1
-------
#! /bin/sh
c=10
Where as, i would like to access the velue of variable c in another script 'Script-2'.
Thankyou to all in advance !! :b:
:b: (2 Replies)
I hve a PL SQL block in unix where i define a variable "var_px_cat" and use it for taking count
SELECT COUNT(*) INTO var_px_cat
FROM A
WHERE B = '$CATEGORIE_ID';
Now how do I access the variable "var_px_cat" in unix after exiting from pl sql block. (3 Replies)
hi all, i've a requirement like this.
i want to access the contents of an array declared in one script,which is a bash script, to a second script which is a perl script.
actually i want a sort of global variable which can be accessed in other script
like environmen variables and also i can... (3 Replies)
HI all,
How can i access a variable that is
defined in another file as: $$Name= "abhinav;
in my script.
The catch is that it has 2 $s behind it...
Thnaks
---------- Post updated at 10:36 AM ---------- Previous update was at 10:29 AM ----------
the file from which i have to... (0 Replies)
Hi All,
I have some files in my directory, and i want to pull all data using for loop....I am using following code but getting error..!
for file in {file1, file2, file3, ..... filen}
do
L="$(tail -1 $file)";NUM=${L%%|*};DAT=${L##*|}
echo $NUM>>filedata.txt
done
Error:
tail:... (3 Replies)
Hi,
Would like to know the purpose and accessing of local variable as in below code snippet:
a=123
( a=321; )
echo "a = $a" #This will print 123
How to access local a variable which is assigned with value 321 ?. .. (3 Replies)
Hi,
GetName()
{
if
then
echo " Please enter the name: "
read Name
tempvar=0
while read line
do
if
then
tempvar=`expr $tempvar + 1`
echo $tempvar
... (10 Replies)
Hi Guys,
I need to access multiple directories whcih is following similar structure and need to copy those files in desitination path.
for eg :
if ]
then
cd ${DIR}/Mon/loaded
echo "copying files to $GRS_DIR"
cp * ${DIR}/Mon/
echo "Files of Monday are Copied"
fi
if ]
then... (5 Replies)
Discussion started by: rohit_shinez
5 Replies
LEARN ABOUT MINIX
script
SCRIPT(1) User Commands SCRIPT(1)NAME
script - make typescript of terminal session
SYNOPSIS
script [options] [file]
DESCRIPTION
script makes a typescript of everything displayed on your terminal. It is useful for students who need a hardcopy record of an interactive
session as proof of an assignment, as the typescript file can be printed out later with lpr(1).
If the argument file is given, script saves the dialogue in this file. If no filename is given, the dialogue is saved in the file type-
script.
OPTIONS -a, --append
Append the output to file or to typescript, retaining the prior contents.
-c, --command command
Run the command rather than an interactive shell. This makes it easy for a script to capture the output of a program that behaves
differently when its stdout is not a tty.
-e, --return
Return the exit code of the child process. Uses the same format as bash termination on signal termination exit code is 128+n.
-f, --flush
Flush output after each write. This is nice for telecooperation: one person does `mkfifo foo; script -f foo', and another can
supervise real-time what is being done using `cat foo'.
--force
Allow the default output destination, i.e. the typescript file, to be a hard or symbolic link. The command will follow a symbolic
link.
-q, --quiet
Be quiet (do not write start and done messages to standard output).
-t[file], --timing[=file]
Output timing data to standard error, or to file when given. This data contains two fields, separated by a space. The first field
indicates how much time elapsed since the previous output. The second field indicates how many characters were output this time.
This information can be used to replay typescripts with realistic typing and output delays.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
NOTES
The script ends when the forked shell exits (a control-D for the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not
set) for the C-shell, csh(1)).
Certain interactive commands, such as vi(1), create garbage in the typescript file. script works best with commands that do not manipulate
the screen, the results are meant to emulate a hardcopy terminal.
It is not recommended to run script in non-interactive shells. The inner shell of script is always interactive, and this could lead to
unexpected results. If you use script in the shell initialization file, you have to avoid entering an infinite loop. You can use for
example the .profile file, which is read by login shells only:
if test -t 0 ; then
script
exit
fi
You should also avoid use of script in command pipes, as script can read more input than you would expect.
ENVIRONMENT
The following environment variable is utilized by script:
SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed.
(Most shells set this variable automatically).
SEE ALSO csh(1) (for the history mechanism), scriptreplay(1)HISTORY
The script command appeared in 3.0BSD.
BUGS
script places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects.
script is primarily designed for interactive terminal sessions. When stdin is not a terminal (for example: echo foo | script), then the
session can hang, because the interactive shell within the script session misses EOF and script has no clue when to close the session. See
the NOTES section for more information.
AVAILABILITY
The script command is part of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils
/util-linux/>.
util-linux June 2014 SCRIPT(1)