How to merge files

lestat_ecuador · #1 (**permalink**) 06-06-2007

Hello guys,

I gotta question, i have a lot of log files (simple text) and i need to merge them in group of 10 files, one next to the other, that have sense?

For example, i have the files:

File1
File2
File3
File4
.
.
File100

I need to merge the contents of each file into a new file named Total1, but into Total1 only will be the File1 to File10, then will be another Total2 with the content of File11 to File20... etc, etc... Please your help.

Thanx

Shell_Life · #2 (**permalink**) 06-06-2007

Lestat,
See if this works for you:

Code:

typeset -i mCnt=0
typeset -i mSeq=1
mOutFile='Total1'
for mFName in `find . -type f`
do
  cat mFName >> $mOutFile
  mCnt=$mCnt+1
  if [ ${mCnt} -eq 10 ]; then
    mSeq=$mSeq+1
    mOutFile='Total'$mSeq
    mCnt=0
  fi
done

aigles · #3 (**permalink**) 06-06-2007

Another solution (ksh or bash) :

Code:

# Script file: concat.sh

shopt -s extglob # Not need for ksh

src_prefix=File
out_prefix=Total

typeset -i src_seq out_seq

for src_file in ${src_prefix}+([0-9])
do
   src_seq=${src_file#${src_prefix}}
   (( out_seq=src_seq/10+1 ))
   echo "cat ${src_file} >> ${out_prefix}${out_seq}"
done

Execution:

Code:

$ ls File*
File1  File100  File11  File19  File2  File9  File91  File92  File99
$ concat.sh
cat File1 >> Total1
cat File100 >> Total11
cat File11 >> Total2
cat File19 >> Total2
cat File2 >> Total1
cat File9 >> Total1
cat File91 >> Total10
cat File92 >> Total10
cat File99 >> Total10$

Jean-Pierre.

venkata.ganesh · #4 (**permalink**) 06-07-2007

code
#!/bin/sh
echo enter file name
read f
echo enter number of such files
read n
i=1
while test $i -ne $n
do
echo $f$i >> outfile
cat $f$i >> outfile
i=`expr $i + 1`
done

by the use of above code you can see the file name also before its content.

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