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I think ACL can come to your help in this case.

May be the firewall allows icmp and blocks ssh to that server?

Thanks for the replies. I figured out a different way.


a=grep expression

if [ "X$a" = "X" ]
...

Worked pretty good.

Hi,

I'm working on a script which includes a part where i need to search for a string first using "grep" and then compare it with another variable using "if".

It should be something like
...

Awesome. Thank you so much..

Hi,

I was looking for a script to change the date from one format to other. A search in the forum gave me the below script as a result.


#! /bin/ksh

format=YYYYMMDD
...

Hey,

Can someone help me with what the vcx and console entries in /etc/Securetty file are? I understand that tty is the terminal that we usually login to using Ctrl+Alt+Fx. Not sure of the vcx...

Thanks a lot @Peasant and @admin_xor for the valuable information. That was exactly what i was looking for.

You can use a ':' in place of a '/' to avoid confusions.


sed 's: ///:///:g' input.txt > output.txt

Try this


find . -name "BACKUP_TIMESTAMP.log" -exec ls -l {} \; -exec cat {} \;

Thanks for the info. So, my assumption is these files are created when i run lvcreate. Correct me if I'm wrong.

Hi,

I was looking at my /dev directory and found some files of the pattern dm?. I searched on google and found that it is a device manager file for LVM. But nothing but that.

Can someone give...

Thanks. This one worked perfect.

Hi Folks,

I wanted to know if i can use RegEx in a for-loop of a shell script.
Here's a scenario, I have a set of files say x1, x2, x3..x9 in a directory(obviously with files other than this...

Hi,

I'm getting the below error when trying to run configure from apache 2.0.64.

configure: error: C preprocessor "/lib/cpp" fails sanity check

I navigated through the forum and found some...

Hi,

I'm going through some materials of SCSA certification. And i'm stuck with the section on printers. I do not own a printer. So, i'm finding it hard to keep up with the content in the course...

Thank you so much! :)

Hey Folks,

I'm a newbie to Unix. Sorry if this doubt sounds very silly. I know that first 100 UID's are used by system accounts and the rest, for normal users. It'd be great if someone could guide...