First, get rid of cat:
Then, if every line in 400files.list contains a "/" character, speed up:
considerably by changing the command expansions invoking basename and dirname to variable expansions of the form:
and get rid of the duplicate computations:
This User Gave Thanks to Don Cragun For This Post:
Hi,
Iam having the scripts as follows. i jus want to run those in parallel.
main aim is to minimise the time for overall execution of the script.
now out.txt is having 1 lac records.
script1(split.sh)
split -1000 out.txt splitout
ls -A splitout* > filelist.txt
cat filelist.txt... (6 Replies)
Hi All,
I have 3 shell scripts, Script1,Script2 and Script3. Now I want to run Script1 and Script2 in parallel and Script3 should depend on successful completion of both Script1 and Script2.
Could you please suggest an approach of acheiving this...
Thanks in advance (2 Replies)
Hi,
I have to write a program to compute the checksums of files
./script.sh
I wrote the program using bash and it took me forever since I am a beginner but it works very well.
I'm getting so close to the deadline and I realised today that actually I have to use normal Bourne shell... (3 Replies)
I have one parent directory and within that parent directory there are several other sub-directories and within those sub-directories there are several other "large number" of sub-directories.
All the sub directories have a shell script in them with a common file name execute_command.sh I want... (4 Replies)
Hi
I want to execute few scripts in Parallel. There is a Master Script (MS.ksh) which will call internally all the scripts we need to run in Parallel. Say there are three set of scripts :
ABC_1.ksh --> ABC_2.ksh --> ABC_3.ksh (execute ABC_2 when ABC_1 is successful ; Execute ABC_3 only when... (6 Replies)
Hi
Say I am interested in processing a big data set over shell, and each process individually takes a long time, but many such processes can be pipe-lined, is there a way to do this automatically or efficiently in shell?
For example consider pinging a list addresses upto 5 times each. Of... (5 Replies)
Hi all - I am totally stuck here :wall
I have been asked to write a shell script that does a few little things and then reads from a config file and kicks off an instance of another script, say scriptB.ksh for each line in the config file. These should all be run in parallel. This is all fine but... (2 Replies)
i have script A and script B, both scripts have to run in parallel, my requirement is script A create table temp1, post creating it will run fr 4 hrs , script B has to start 0nly after creation of table temp1 ( which is done by script A) , again script B will run for 5 hrs
if i run sequencially... (7 Replies)
Hi all,
I am struggling to build a utility which can do the parallel processing. I achieved same in Linux using xargs -P but same is not working on AIX.
I am building file copy utility where I will have all required info in a file (like souce file info and target location details), now i need... (2 Replies)
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
LEARN ABOUT PHP
libbash
LIBBASH(7) libbash Manual LIBBASH(7)NAME
libbash -- A bash shared libraries package.
DESCRIPTION
libbash is a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may
want to load and use in scripts of your own.
It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries.
Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1). A bash shared library that can be loaded
using
ldbash(1) must answer 4 requirments:
1. It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash).
2. It must contain a line that begins with '#EXPORT='. That line will contain (after the '=') a list of functions that the library
exports. I.e. all the function that will be usable after loading that library will be listed in that line.
3. It must contain a line that begins with '#REQUIRE='. That line will contain (after the '=') a list of bash libraries that are
required for our library. I.e. every bash library that is in use in our bash library must be listed there.
4. The library must be listed (For more information, see ldbashconfig(8)).
Basic guidelines for writing library of your own:
1. Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions.
2. Try to declare all variables intended for internal use as local.
3. Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with:
__<library_name>_
For example, internal function myfoosort of hashstash library should be named as
__hashstash_myfoosort
This helps to avoid conflicts in global name space when using libraries that come from different vendors.
4. See html manual for full version of this guide.
AUTHORS
Hai Zaar <haizaar@haizaar.com>
Gil Ran <ril@ran4.net>
SEE ALSO ldbash(1), ldbashconfig(8), getopts(1), hashstash(1)colors(1)messages(1)urlcoding(1)locks(1)Linux Epoch Linux