Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: For loop in process each file
Top Forums UNIX for Dummies Questions & Answers For loop in process each file Post 302943822 by stew on Wednesday 13th of May 2015 06:45:00 AM
Old 05-13-2015
For loop in process each file
Hi

I have following code
Code:
cd /tmp/test/
for vfile in `ls -1`           
   do                             
     for vlink in `ls -l /tmp/testfile/*|bin/grep "local/init\.d/$vfile$"|bin/awk -F"->" '{print($1)}'|bin/awk -F"/" '{print($NF)}'`

I know `ls -1` list only file, but I don't understand second for loop,

I got below o/p when run ls -1
Code:
abc
def
ghi

So I tried to manually run
Code:
ls -l /tmp/testfile/*|bin/grep "local/init\.d/abc"|bin/awk -F"->" '{print($1)}'|bin/awk -F"/" '{print($NF)}'

but I am not getting any o/p

The program checking the link file
Last edited by rbatte1; 05-13-2015 at 08:42 AM.. Reason: Added ICODE tags and tightened CODE tags
 

10 More Discussions You Might Find Interesting

1. AIX

loop through the directory for files and sort by date and process the first file

hello i have a requirement where i have a direcotry in which i get files in the format STOCKS.20080114.dat STOCKS.20080115.dat STOCKS.20080117.dat STOCKS.20080118.dat i need to loop through the directory and sort by create date descending order and i need to process the first file. ... (1 Reply)
Discussion started by: dsdev_123
1 Replies

2. Shell Programming and Scripting

Check for statup process in loop?

I've written a script to check for Oracle's listener, eventman and pmon processes however there are several databases that startup which can take several minutes. I'd like to add code to my current script that greps for the process “startup” and whether its condition is true or false. If the... (1 Reply)
Discussion started by: dataciph3r
1 Replies

3. Shell Programming and Scripting

loop when process running

Hi Gurus, Could you please help me to create a shell script that will be started by a cron job once every night at 24.00 h (that should bee easy:)) The shell script should control every 30 seconds the name of a process, and when the process doesn't run anymore it should execute a few further... (12 Replies)
Discussion started by: blackwire
12 Replies

4. Shell Programming and Scripting

How to loop this process?

for two txt files, f1 and f2, I like to do the following grep "abcde" f1 > abcde$f1 grep "xyz" f1 > xyz$f1 can I use a loop to get this done? Thanks for i in f1 f2 do grep "abcde" $i > abcde$i grep "xyz" $i > xyz$i ... done (11 Replies)
Discussion started by: ksgreen
11 Replies

5. Shell Programming and Scripting

Process checking loop

Hi, I want to create a script who will check if the java process is running & if it finds the process is still there it continues to execute & when the process completes it exit from the script. I have written a code to check & notify the process existence but i am not getting how to write... (4 Replies)
Discussion started by: d8011
4 Replies

6. Shell Programming and Scripting

Loop to process 2 files with same name in different path

Hello forum members, I hope you can help me with this I don't know hot to reach. I have a list of files in "/home/MyPath1/" and in "/home/MyPath2/". The files have the same name in both folders. (but different content, the content doesn't matter here I think) /home/MyPath1/ filename1.txt... (4 Replies)
Discussion started by: Ophiuchus
4 Replies

7. Shell Programming and Scripting

need to process for loop faster

I have the following code running against a file. The file can have upwards of 10000 lines. problem is, the for loop takes a while to go through all those lines. is there a faster way to go about it? for line in `grep -P "${MONTH} ${DAY}," file | ${AWK} -F" " '{print $4}' | awk -F":"... (2 Replies)
Discussion started by: SkySmart
2 Replies

8. UNIX for Dummies Questions & Answers

Timed loop to scan for a process

Hi all, Looking for some help, I have written a very simple script to pass to PowerHA to act as an indicator to activate failover required. Where i get completely lost is I have to create a wait and carry out the grep for the process once every 10 seconds this works but need to embed this... (1 Reply)
Discussion started by: Gary Hay
1 Replies

9. Shell Programming and Scripting

Process a file for line count using for loop in awk

Hi, I have a file with contents So what I have to do is In short, break the file after every 6 lines and then truncate new line to tab for these 6 lines. I am not able to execute the for loop in awk properly. The idea is something like this: less file| awk '{for .... {if ((nr>=1)... (7 Replies)
Discussion started by: rossi
7 Replies

10. Shell Programming and Scripting

Script to loop process

As I would like to test the open files usage , I would like to have a process that use the open files up to a certain amount eg. 1000 . If I want to have a script ( may be run in a loop ) that could repeatly use open files resource , so that the usage of open files increases , may I know how to... (10 Replies)
Discussion started by: ust
10 Replies

LEARN ABOUT DEBIAN

e2tools

E2TOOLS(7)						 Miscellaneous Information Manual						E2TOOLS(7)

NAME

       e2tools -  utilities to manipulate files in an ext2/ext3 filesystem

DESCRIPTION

       E2tools	is  a  simple  set  of	GPL'ed utilities to read, write, and manipulate files in an ext2/ext3 filesystem. These utilities access a
       filesystem directly using the ext2fs library. I wrote these tools in order to copy files into a linux filesystem on a machine that does not
       have  ext2  support.  Of  course, they can also be used on a linux machine to read/write to disk images or floppies without having to mount
       them or have root access.

       Supported functionality:

       e2cp   copy files

       e2mv   move files

       e2rm   remove files

       e2mkdir
	      create directory

       e2ln   create hard links

       e2ls   list files/directories

       e2tail output the last part of a file

       In general, to specify a directory or file on an ext2 filesystem for the e2tools utilities, use the following form:

	      filesystem:directory_path

       The filesystem can be an unmounted partition or a regular file that's been formatted to contain an ext2 filesystem.  In general, if a  com-
       mand takes multiple file names on the command line, if the first one contains an ext2 file specification, the rest of the files are assumed
       to be on the same filesystem until another one is explicitly stated:

	      /tmp/boot.img:/tmp/file1

	      /tmp/file2

	      /tmp/file3

	      /tmp/boot2.img:/tmp/file4

       Files 1-3 are on /tmp/boot.img and the last file is on /tmp/boot2.img

SEE ALSO

       e2cp(1), e2ln(1), e2ls(1), e2mkdir(1), e2mv(1), e2rm(1), e2tail(1).

AUTHOR

       The e2tools were written by Keith Sheffield <sheff@pobox.com>.

       This manual page was written by Lucas Wall <lwall@debian.org>, for the Debian project (but may be used by others).

								   March 2, 2005							E2TOOLS(7)
All times are GMT -4. The time now is 01:47 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy