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Iteration through all files and concatenating file name with contents. [message #597740]

Tue, 08 October 2013 01:15

Manoj.Gupta.91
Messages: 239
Registered: March 2008
Location: Delhi

Senior Member

Hi All,

I'm new to Linux. I'm facing an issue. I need to iterate through all the files in a folder and concatenate File Name with the contents of file and store output in one file.

Eg.

Code: [Select all] [Show/ hide]

File1 (Contents)
7       1       0       1
6       1       0       1
5       1       0       1
4       1       0       1
3       1       0       1
2       1       0       1
1       1       0       1

File2 (Contents)
664     1       0       1
664     1       0       1
664     1       0       1
664     1       0       1
664     1       0       1
664     1       0       1
664     1       0       1
664     1       0       1
664     1       0       1


File3(Expected Output after processing)
File1	7       1       0       1
File1	6       1       0       1
File1	5       1       0       1
File1	4       1       0       1
File1	3       1       0       1
File1	2       1       0       1
File1	1       1       0       1
File2	664     1       0       1
File2	664     1       0       1
File2	664     1       0       1
File2	664     1       0       1
File2	664     1       0       1
File2	664     1       0       1
File2	664     1       0       1
File2	664     1       0       1
File2	664     1       0       1

I did tried to work on this but facing some issue.

Code: [Select all] [Show/ hide]

sed 's/^/\t/' File1.txt | sed 's/^/File1.txt/' >> File3.txt
sed 's/^/\t/' File2.txt | sed 's/^/File2.txt/' >> File3.txt

This sed script works for individual file. But I've about 500 files. One more issue I'm facing is with the file naming convention. Some example names are as below.

11File.txt
- File2.txt
(-) File3.txt
File_4.txt
File-5.txt
(+) File6.txt
+ File2.txt
-TMS_S.txt

I also tried to create a loop for iteration through all the files in a folder but it is giving me some error.

Code: [Select all] [Show/ hide]

#!/bin/sh -f
for myfile in *.txt
do
    echo $myfile
done

'yScript.sh: line 3: syntax error near unexpected token `do
'yScript.sh: line 3: `do

Please help me to solve this issue.

Thanks & Regards
Manoj

[Updated on: Tue, 08 October 2013 01:22]

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Re: Iteration through all files and concatenating file name with contents. [message #597742 is a reply to message #597740]

Tue, 08 October 2013 01:46

Michel Cadot
Messages: 68757
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

This question bears no real connection with Oracle database.
Please find a more appropriate forum.
The topic is locked. /forum/fa/448/0/

If I'm wrong, please, PM me (or report this message to a moderator, explain why you think it should be unlocked and it might be done).

Regards
Michel

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