topic Re: script problem in Operating System - HP-UX

script problem

Hari Prasad S R — Mon, 17 Oct 2005 01:44:08 GMT

Hi all,

I am doing some scripting, to copy some files source to destination.

I have about 25 files in current location, I want to copy all the files which starts from the letter a* ,out of which i don't want to copy a particular file which starts ae*

What I have written this

ls –al a* | grep –v ae | awk ‘{print $9}’

this is will give me the output, but i want to know how to copy all these files (i mean which comes as output of awk command)

Re: script problem

John Waller — Mon, 17 Oct 2005 01:48:58 GMT

I personally would take a cheating way:

for a in `ls al a* | grep v ae | awk {print $9} `
do
cp $a /destination
done

Note the use of ` ` around your command.

Re: script problem

Muthukumar_5 — Mon, 17 Oct 2005 01:52:13 GMT

You can do as,

for file in `ls -al a* | grep -Ev 'ae|total' | awk '{ print $9 }'`
do
cp -i ${file}
done

Note: Negate grep for total string for using ls -l

hth.

Re: script problem

Muthukumar_5 — Mon, 17 Oct 2005 01:53:41 GMT

I am sorry no need to negate with total string. Simply as,

for file in `ls -al a* | awk '!/ae/{ print $9 }'`
do
cp -i ${file}
done

hth.

Re: script problem

Muthukumar_5 — Mon, 17 Oct 2005 01:56:03 GMT

ls -al a[!e]* | awk '{ print "cp "$9" /tmp" }' | ksh

It will copy all files to /tmp location. Change destination location accordingly.

hth.

Re: script problem

Hari Prasad S R — Mon, 17 Oct 2005 01:57:37 GMT

Hi Muthukumar,

why we need ksh at the end, i am doing this bash

thanks

Re: script problem

RAC_1 — Mon, 17 Oct 2005 01:58:53 GMT

ls -al1 a[a-df-z]*

Will also do it.

Re: script problem

Orhan Biyiklioglu — Mon, 17 Oct 2005 02:00:24 GMT

You should also use shell wildcards to filter the files you want instead of invoking three commands (ls,grep and awk)
Also this eliminates the need for a loop.

Just use

cp /sourcedir/a[!e]* /destdir/

for local or

scp /sourcedir/a[!e]* remote_host:/destdir/

for remote copying.

hth

Re: script problem

Hari Prasad S R — Mon, 17 Oct 2005 02:03:08 GMT

thanks Orhan Biyiklioglu ,

it worked for me

Re: script problem

Muthukumar_5 — Mon, 17 Oct 2005 02:03:40 GMT

You can change ksh to bash to do that job.

ls -al a[!e]* | awk '{ print "cp "$9" /tmp" }' | bash

It will just work as a sub process to execute those copy operations.

ls -al a[!e]* | awk '{ print "cp "$9" /tmp" }'

will print the shell command that has to be executed. | bash will execute it.

hth.

Re: script problem

Hari Prasad S R — Mon, 17 Oct 2005 02:03:44 GMT

thanks all for the reply

Re: script problem

Muthukumar_5 — Mon, 17 Oct 2005 02:08:24 GMT

Hi Hari Prasad,

Hope you got the solution.

I have a serious comment as,

I have assigned points to 1 of 63 responses to my questions. from your profile.

You assigned only one point to all these responses. Plz assign points to all responses so that you will get good responses.

Every one is sharing their valuable technical time with you PROMPTLY.

hth.