topic script shell in Operating System - HP-UX

script shell

Vogra — Wed, 13 Nov 2002 15:40:03 GMT

Hi All!
help me please,
I get the script that list contents of dir, but I need to limit by number of files.
In other words:
I have 10 files in /ttp,
I want to move only the last 5 new. I'm using sh, but can be csh ou ksh.
Thanx in advance.

Re: script shell

A. Clay Stephenson — Wed, 13 Nov 2002 15:53:07 GMT

ls | tail -n -5

Re: script shell

John Palmer — Wed, 13 Nov 2002 15:54:23 GMT

for F in $(ls -rt | tail -5)
do
mv $F wherever
done

Regards,
John

Re: script shell

Vogra — Wed, 13 Nov 2002 15:54:56 GMT

...and if I don't know the number of files and I want to list all the files less the last 3 files.
Ex:
a b c d e f g h
list only: a b c d e
f g and h are the new...
thanx...!

Re: script shell

James R. Ferguson — Wed, 13 Nov 2002 15:55:00 GMT

Hi:

Use 'ls -t' to present your list of files sorted by the modification time (latest first) before sorting alphabetically. Then count off the first five entries and do your processing using only them.

Regards!

...JRF...

Re: script shell

S.K. Chan — Wed, 13 Nov 2002 15:56:43 GMT

You can use "ls -t" to sort the listing by modified time (latest first) and if you want the lastest 5 just pipe it to "head -5". Something like this ..

#!/usr/bin/sh

for file in $(ls -t /ttp|head -5)
do
# do your move here
done

I'm assuming in /ttp there are only files, no directories.

Re: script shell

Vogra — Thu, 14 Nov 2002 10:10:53 GMT

Hi All!

the last script is:

#!/usr/bin/sh
NR=`ls /dir1/*.fff|wc -l` # total
LI=5 # don't touch this
MV=`expr $NR - $LI`
VS=/dir1
VS2=/dir2
export VS VS2 NR LI MV
echo $NR, $LI, $MV
if [ "$NR" -gt "$LI" ] # > LI files ?
then
for file in $(ls -rt $VS/*.fff|head -$MV)
do
mv $file $VS2
done
fi

Thanx to everyone.
Lima.