Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: For loop and read from different directories
Top Forums Shell Programming and Scripting For loop and read from different directories Post 303001152 by baris35 on Thursday 27th of July 2017 06:59:24 PM
Old 07-27-2017
For loop and read from different directories
Hello,
I need to grep/read files from multiple directories, one by one.
I mean something like shuffling the cards uniformly.

Code:
cd /directoryA
for i in *.txt;
do
some codes 
cd ../directoryB
for i in *.txt;
do
some codes
cd ../directoryC
for i in *.txt;
do
some codes
done
done
done

Directory A Includes: (Lets say totally 100 files)
Code:
1.txt
2.txt
3.txt
4.txt
5.txt
..
..
..
100.txt

Directory B Includes: (Lets say totally 30files)
Code:
a.txt
b.txt
c.txt
d.txt
e.txt
..
..
..
z.txt

Directory C Includes: (Let's say totally 901 files)
Code:
101.txt
102.txt
103.txt
104.txt
105.txt
..
..
..
1000.txt

In first for loop 1.txt should be read from directory A
  • 1st loop -> directory A, file 1.txt
  • 2nd loop ->directory B, file a.txt
  • 3rd loop -> directory C, file 101.txt
  • 4th loop -> directory A, file 2.txt

If all files in a certain folder had already been read in previous loop, skip that folder...

I'd appreciate if you could explain how I can do that. for is causing problem. Other solutions are also welcome.

Many thanks
Boris
Last edited by baris35; 08-15-2017 at 04:30 PM.. Reason: [solved]
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Script to loop through all files and directories.

I'm trying to write a script that will loop through all files and directories down from a path I give it, and change the permissions and ACL. I was able to do the obvious way and change the files and folders on the same level as teh path...but I need it to continue on deeper into the file... (2 Replies)
Discussion started by: cheetobandito
2 Replies

2. Shell Programming and Scripting

How to loop through directories to touch files

Hi, Please help me on this. Suppose i have the following directory structure. /app/data /app/data/eng /app/data/med /app/data/bsc each of the directories data,data/eng,data/med,data/bsc holds files with date extension like a.20081230 b.20081230 and so on I need a script to loop... (9 Replies)
Discussion started by: sussane
9 Replies

3. Shell Programming and Scripting

Newbie: How to loop round sub-directories

I want a bit of shell script that will let me loop round all the sub-directories in a directory (i.e. ignoring any ordinary files in that directory). Let's say I just want to echo the names of the sub-directories. This sounds like it should be pretty easy - but not for me, it isn't! All help... (4 Replies)
Discussion started by: cjhancock
4 Replies

4. Shell Programming and Scripting

Loop to move files in different directories

Hi, I have various log files in different paths. e.g. a/b/c/d/e/server.log a/b/c/d/f/server.log a/b/c/d/g/server.log a/b/c/h/e/server.log a/b/c/h/f/server.log a/b/c/h/g/server.log a/b/c/i/e/server.log a/b/c/i/e/server.log a/b/c/i/e/server.log and above these have an archive folder... (6 Replies)
Discussion started by: acc01
6 Replies

5. Shell Programming and Scripting

For Loop Range Create Directories

Hello, I am a bit stumped on this. I am attempting to create 24 empty directories with a loop. Seems like I have incorrect syntax. When I run the following command I get the error below. Command $ for i in {2..24}; do mkdir $i_MAY_2011 ; doneError x 24 mkdir: missing operand Try `mkdir... (2 Replies)
Discussion started by: jaysunn
2 Replies

6. Shell Programming and Scripting

To read directories and file

Hi ; I want to write a shell script to read all files and directories(recursively) given in path along with their user permissions and store that result in one file as File path Userpermissions ===== =========== I m new to linux and my dont kno much abt shell scripting. I will... (5 Replies)
Discussion started by: ajaypadvi
5 Replies

7. UNIX for Dummies Questions & Answers

Read statement within while read loop

hi, this is my script #!/bin/ksh cat temp_file.dat | while read line do read test if ]; then break else echo "ERROR" fi done when i execute this code , the script does wait for the user input . it directly prints "ERROR" and terminates after the no. of times as there... (3 Replies)
Discussion started by: siva1612
3 Replies

8. Shell Programming and Scripting

Accessing multiple directories in loop

Hi Guys, I need to access multiple directories whcih is following similar structure and need to copy those files in desitination path. for eg : if ] then cd ${DIR}/Mon/loaded echo "copying files to $GRS_DIR" cp * ${DIR}/Mon/ echo "Files of Monday are Copied" fi if ] then... (5 Replies)
Discussion started by: rohit_shinez
5 Replies

9. Solaris

Giving read write permission to user for specific directories and sub directories.

I have searched this quite a long time but couldn't find the right method for me to use. I need to assign read write permission to the user for specific directories and it's sub directories and files. I do not want to use ACL. This is for Solaris. Please help. (1 Reply)
Discussion started by: blinkingdan
1 Replies

LEARN ABOUT REDHAT

paste

PASTE(1)								FSF								  PASTE(1)

NAME

       paste - merge lines of files

SYNOPSIS

       paste [OPTION]... [FILE]...

DESCRIPTION

       Write  lines  consisting  of  the sequentially corresponding lines from each FILE, separated by TABs, to standard output.  With no FILE, or
       when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -d, --delimiters=LIST
	      reuse characters from LIST instead of TABs

       -s, --serial
	      paste one file at a time instead of in parallel

       --help display this help and exit

       --version
	      output version information and exit

AUTHOR

       Written by David M. Ihnat and David MacKenzie.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The  full  documentation  for paste is maintained as a Texinfo manual.  If the info and paste programs are properly installed at your site,
       the command

	      info paste

       should give you access to the complete manual.

paste (coreutils) 4.5.3 					   February 2003							  PASTE(1)
All times are GMT -4. The time now is 11:11 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy