How to run multiple functions in Background in UNIX Shell Scripting?
Hi,
I am using ksh , i have requirement to run 4 functions in background , 4 functions call are available in a case that case is also in function, i need to execute 1st function it should run in background and return to case and next i will call 2nd function it should run in background and return to case again to ask for anyother option to execute in backgorund.
I tried to
using this 1 functions is being called and running and i am able to call other function but it is displaying as process already exists and the main script itself is getting terminated.
I searched the forum and saw fork(); command but i am not clear to use that and i saw in one forum that it is bad to use that and not advisable.
Please Advise how to achive the functions to run in background and i cant split the script making 4 different scripts.
I have a following program:
echofunc()
{
filename=$1
echo "reading $filename"
while read line
do
echo $line;
sleep 6;
done < $filename
}
split -5 new.dat
ls x* > input.dat
while read file
do
echofun $file &
done < input.dat (3 Replies)
I am trying to write a script that will ssh into a remote machine and recurse through a specified directory, find mp3 files which may be two or three directories deep (think iTunes: music/artist/album/song.mp3), and scp them back to the machine running the script. The script should also maintain... (3 Replies)
hello there,
there's a function, in my shell script, i'd like to run in the background.
here's an example:
log()
{
local SELF=${0##*/}
tty -s && echo ": $*"
}
some_func()
{
# do something
log "This text is not displayed in the terminal's output when running in the... (1 Reply)
Dear All,
I am trying to run a script in background like ./scriptname.sh & but when i try to run it in background it is giving me an error "syntax error at line 12: `(' unexpected" at the line 12, there is a function definition
"function getFileList()".
This script runs fine if i run on... (2 Replies)
I have written the below query to genrate a telephone.I am passing account number from oracle database.
I am calling 2 scripts which generate the bill
1. bip.sh (it runs in the background)
2.runXitInvoice_PROFORMA_integ
bip.sh generates a number which runXitInvoice_PROFORMA_integ
uses.How... (7 Replies)
Hi Guys,
i am having a script which checks for ip address is pingable or not,when i execute this script in terminal it keeps on showing the pinging status of every ip address and it takes more time when i check for 100 ip address,How to do run a script in background without showing in the terminal... (4 Replies)
Hello,
I have a requirement to apply hashing algorithm on flat file on one or more columns dynamically based on header
sample input file
ID|NAME|AGE|GENDER
10|ABC|30|M
20|DEF|20|F
say if i want multiple columns based on the header example id,name or id,age or name,gender and hash and... (13 Replies)
Hello All,
just wanted to export multiple tables from oracle sql using unix shell script to csv file and the below code is exporting only the first table.
Can you please suggest why? or any better idea?
export FILE="/abc/autom/file/geo_JOB.csv"
Export= `sqlplus -s dev01/password@dEV3... (16 Replies)
Discussion started by: Hope
16 Replies
LEARN ABOUT OPENSOLARIS
times
times(1) User Commands times(1)NAME
times - shell built-in function to report time usages of the current shell
SYNOPSIS
sh
times
ksh
times
DESCRIPTION
sh
Print the accumulated user and system times for processes run from the shell.
ksh
Print the accumulated user and system times for the shell and for processes run from the shell.
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, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a
variable assignment. This means that tilde substitution is performed after the = sign and 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 ksh(1), sh(1), time(1), attributes(5)SunOS 5.11 15 Apr 1994 times(1)