UNIX for Dummies Questions & Answers

Try

Code:

split -l10 input.txt input.txt

(-d is a GNU split flag which uses numeric suffixes rather than alphabetic)

Ok, that means your version of split doesn't support option 'd'.

Try this bash script. This would split the file into multiple files each containing 10 lines.

Code:

#! /bin/bash

c=1; f_num=1;
while read x
do
    [ $c -eq 11 ] && c=1 && ((f_num++))
    echo $x >> input.txt.$f_num
    ((c++))
done < input.txt

Hello CarloM,

Thank you very much for your quick response.
Certainly this command is working, but its not fullfiling my requirement.

Let me tell you what exactly I want:

If Input.txt is having 9 rows that is

1
2
3
4
5
6
7
8
9

Then I don't want to split it.

If Input file is having 10 or more than 10 records then I want to split the input file into 10 subfiles.

Hope you understood my requirement.

---------- Post updated at 04:38 AM ---------- Previous update was at 04:34 AM ----------

Hello Balajesuri,

Thank you very much for your reply.But this is not fullfiling my requirement.

Please see my requirement once again:

I am having one input file i.e. Input.txt
It has 9 rows.Sometime it will have more than 9 rows also.

So what I want is I want to check if the total number of records in the input.txt is equals to 9 or less than 9 then DON'T SPLIT. However if total number of records in Input.txt is equals to greater than 10 then SPLIT THE FILE IN 10 NUMBER OF SUBFILES.

Thank you very much in advance.

---------- Post updated at 04:39 AM ---------- Previous update was at 04:38 AM ----------

Hello Balajesuri,

Thank you very much for your reply.But this is not fullfiling my requirement.

Please see my requirement once again:

I am having one input file i.e. Input.txt
It has 9 rows.Sometime it will have more than 9 rows also.

So what I want is I want to check if the total number of records in the input.txt is equals to 9 or less than 9 then DON'T SPLIT. However if total number of records in Input.txt is equals to greater than 10 then SPLIT THE FILE IN 10 NUMBER OF SUBFILES.

Thank you very much in advance.

Modifying maskofzorro's solution a little:

Code:

#!/bin/bash

lines=`wc -l input.txt|awk '{ print $1 }'`
if [ $lines -ge 10 ];
then
   (( newlines=$lines/10 ))
   split -l $newlines input.txt
fi

Hello CarolM,

Thank you very much for your help.

It worked fine for me.

However after running this script the file I am getting is something like:

xaa
xab

So I njust need the naming of the outfile is Input.txt1 or Input.txta

Kindly reply on this.

Change the split command to:

Code:

split -a1 -l $newlines input.txt input.txt