All,

I am new to unix and i have the following requirement.

I have file(s) landing into input directory with timestamp, first i want to copy all these files into seperate directory then i want to rename these files without timestamp and also remove header,trailer from that file..

Could anybody please throw some light on this how to write a script for above requirement ..

Thanks in advance..

Ksrams,
Please give us more information, such as sample of file name with the
timestamp and the expected output.

Thanks for quick reply Shell_Life.
Here is the info.
Input file(s) located under directory /input and file names are:
1) input1_20070723_171556.txt
2) input2_20070723_171556.txt
3) input3_20070723-171556.txt
input1_20070723_171556.txt sample data:

HEADERRECORD 20070723 DESC
aaa 111 222 333 bbb
bbb 222 111 444 ccc
ccc 333 444 111 ddd
TRAILERRECORD 3

I want the do the following process in one script..
a) First thing is i want to copy all the files into /ouput directory
b) rename the files under /out directory to
1) rename input1_20070723_171557.txt file to input1.txt and also remove HEADERRECORD 20070723 DESC(header record i.e always first line) and TRAILERRECORD 3(Detail record i.e always last line in file) from input1.txt
input1.txt file data should be:

aaa 111 222 333 bbb
bbb 222 111 444 ccc
ccc 333 444 111 ddd

2) rename input2_20070723_171557.txt to input2.txt and also remove first and last lines from input2.txt
3) rename input3_20070723_171556.txt to input3.txt and also remove first and last lines from input3.txt

I hope this is much better compare to my previous post.
I would appreciate if you guide me on this..

Thanks in advance..

I think this script should help you

#!/bin/ksh

Input_Dir="$HOME/input"
Output_Dir="$HOME/out"

rm -f $Output_Dir/*
for file in `ls $Input_Dir`  # If the input directory contains only files
# for file in `ls -l $Input_Dir | grep '^-' | awk '{print $9}'` #Only files in Dir
do
        new_file=${file%%_*}
        wc -l $Input_Dir/$file | awk '{ print $1}' | read line_count
        sed "1d;$line_count""d" $Input_Dir/$file > $Output_Dir/$new_file.txt
        touch -r $Input_Dir/$file $Output_Dir/$new_file.txt
done
exit

mInDir='/Input/'
mOutDir='/Output/'
mFileExp='input*.txt'
for mFile in `find ${mInDir} -type f -name "${mFileExp}"`
do
  mFName=`echo ${mFile} | sed 's/.*\(input.*\)_20.*txt/\1/'`
  mOutFile=${mOutDir}${mFName}'.txt'
  sed '1d;$d' ${mFile} > ${mOutFile}
  rm -f ${mFile}
done

Hi Shell_Life,

Input files not always starts with input*.txt,input files could start with any name.I want to process all the files under input directory and filename last 20 characters are always timestamp.txt..Could you please modify this script to process all the files instead of input*.txt files.Would it possible if we pass input and output directories as parameters to this script.

Thanks in advance..