Sponsored Content
Top Forums Shell Programming and Scripting Bash script parallel tasks and command to wait untill complete? Post 302894972 by postcd on Friday 28th of March 2014 07:01:13 AM
Old 03-28-2014
Bash script parallel tasks and command to wait untill complete?

Hello,

im having bash script with

Code:
while ***
command1 &&
command2 &&
command3 &&
done

i want to ask how i can prevent overloading server, by waiting untill all commands complete? any low resources intensive command like "wait" - i dont know if exist?
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

PERL: wait for process to complete

I'm using PERL on windows NT to try to run an extract of data. I have multiple zip files in multiple locations. I am extracting "*.t" from zip files and subsequently adding that file to one zip file so when the script is complete I should have one zip file with a whole bunch of ".t" files in it. ... (2 Replies)
Discussion started by: dangral
2 Replies

2. Shell Programming and Scripting

Wait for Background Process to complete

I am attempting within a for-loop, to have my shell script (Solaris v8 ksh) wait until a copy file command to complete before continueing. The specific code is: for files in $(<inputfile.lst) do mv directory/$files directory/$files ksh -m -i bg %% wait $! done I am shaky on the... (3 Replies)
Discussion started by: gozer13
3 Replies

3. UNIX for Dummies Questions & Answers

BASH complete-filename & menu-complete together

Hi, Does anyone know how to make BASH provide a list of possible completions on the first tab, and then start cycling through the possibilites on the next tab? Right now this is what I have in my .bashrc: bind "set show-all-if-ambiguous on" bind \\C-o:menu-complete This allows... (0 Replies)
Discussion started by: Mithu
0 Replies

4. Filesystems, Disks and Memory

hdparm + HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl

Hi All, Am finding performance of my SD card using hdparm. hdparm -tT /dev/BlockDev0 /dev/BlockDev0: Timing cached reads: 1118 MB in 2.00 seconds = 558.61 MB/sec HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device Timing buffered disk reads: 14... (0 Replies)
Discussion started by: amio
0 Replies

5. UNIX for Dummies Questions & Answers

How do you wait for command substitution processes to complete?

When running a command using the >(cmd) syntax in bash how do you wait for the command to complete before moving on in your script? Here is a simple example: zcat largefile.gz | tee >(wc && echo “HELLO”) > /dev/null # I tried wait, here but it doesn't wait for the process in the subshell.... (8 Replies)
Discussion started by: mrvwman
8 Replies

6. Shell Programming and Scripting

Line in bash script to wait for x feedbacks and then continue

I have a script that runs a console/terminal command on the server and what is want is for each of the multiple success reports fed back from the clients (echo-ed out onto the conosle) to be counted and after x number of reports reboot the server. The Details: The command (program) is... (0 Replies)
Discussion started by: dp123
0 Replies

7. Shell Programming and Scripting

Wait for one processes to complete in a shell script

Let's say I start process A.sh, then start process B.sh. I call both of them in my C.sh How can I make sure that B starts its execution only after A.sh finishes. I have to do this in loop.Execution time of A.sh may vary everytime. It is a parameterized script. (17 Replies)
Discussion started by: rafa_fed2
17 Replies

8. Shell Programming and Scripting

In Shell Script Does Second Command Wait For First Command To Complete

Hi All, I have a question related to Shell scripting. In my shell script, I have following two commands in sequence: sed 's/^/grep "^120" /g' $ORIGCHARGEDAMTLIST|sed "s;$;| cut -f$FIELD_NO1 -d '|' | awk '{ sum+=\$1} END {printf (\"%0.2f\\\n\", sum/100)}' >$TEMPFILE mv $TEMPFILE $ORIGFILE... (3 Replies)
Discussion started by: angshuman
3 Replies

9. Shell Programming and Scripting

(bash) Script Processes in Parallel

Hello all, I tried to parralise my treatments but after a while 'ps -ef' display all child process <defunct> (zombie) Parent bash script to process all files (>100000) in directory: for filename in /Data/*.txt; do ./child_pprocess.sh $filename & done exit(0)I understand that the... (1 Reply)
Discussion started by: namnetes
1 Replies
PCT-SCANNER-SCRIPT(1)					      General Commands Manual					     PCT-SCANNER-SCRIPT(1)

NAME
pct-scanner-script - easy scan and create merged DjVu and PDF documents for archiving SYNOPSIS
pct-scanner-script [--help] DESCRIPTION
pct-scanner-script is a bash script and configuration system to easily scan documents and create a digital archiving. It can create DjVu PDF and JPEG outputs, in merged and individual files. It also has a configuration system where different configurations can be defined, making it easy to switch between configurations. Please use pct-scanner-script --help to find all program options, the complete help, and all examples. Features: - auto archiving in merged and individual DjVu, PDF, and JPEG files - auto and manual resume when scanning somehow fails - cascading configuration system, for easy customizing - easy command-line-style bash program, with useful options - archiving made possible with both adf and flatbed scanners - built for productivity and daily use - uses bash, scanadf and other mainstream processing tools - multilanguage commandline output OPTIONS
-h, --help, -? Show summary of options, help, and examples. DEBUGGING
This program is a helper script to easy scan and automated digital document archiving for normal and adf scanners. You can debug this script by running it as bash -x pct-scanner-script [options]. The script is just a nice wrapper for the scanadf, DjVu and PDF tools. SEE ALSO
scanadf(1), AUTHOR
pct-scanner-script and this manual page are written by: Jelle de Jong <jelledejong@powercraft.nl>. March 31, 2009 PCT-SCANNER-SCRIPT(1)
All times are GMT -4. The time now is 09:30 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy