-1
votes
2answers
355 views

linux/solaris insert date & time at the beginning of each line in file

I want to add date & time at the begging of each line in some file I used sed in order to add the date & time before each line in file please advice what I need to update in my sed in order ...
-2
votes
1answer
116 views

linux + count how many digits in IP address [closed]

I write the following syntax (exist in my ksh script) in order to find how many digits I have in IP address IP_address=127.1.1.1 echo $IP_address | sed s'/\./ /g' | wc | awk '{print $2}' 4 . ...
0
votes
1answer
191 views

perl + sed + remove lines that start with “#”

please advice I have linux and solaris machines, and I need command that work on both OS I use the following perl line in order to remove all lines that start with "#" why perl command not work , ...
2
votes
3answers
159 views

linux + match only VALID IP from text file into other file

please advice how to match only the valid IPs ( 255.255.255.255 ) from the file.txt and insert only the valid IP into VALID_IP.txt file ( see VALID_IP.txt for example ) the solution should be ...
0
votes
1answer
95 views

script for changing file dates of postfix Mailbox files

I have a Maildir structure, that got wrongly restored from backup and all files have the file date of the restore instead of when they have been created/received. What would be the best way to ...
0
votes
2answers
121 views

linux + create host file from CSV file by sed or awk or perl

I have the following CSV file this file defined which Linux machine exist in the system and there ip's my target is to create host file from this file please advice how to create host file as ...
2
votes
2answers
976 views

How to use sed, perl to rename files and its contents with a particular pattern in a given directory?

Given a directory "Centos1" which has few files named Centos1.x, Centos1.y, Centos1.z and these files also has "Centos1" in their contents. Using a single command ( using find, sed, perl -pie ) how ...
4
votes
2answers
232 views

Perl search & replace

How can I use search and replace to change the contents of a file. I need to be able to change the 'all to none' and/or 'none to all' without having to manually do it every time for hundreds of ...