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for some reasons, i need to parse the XML result by using perl.
for instance, this is a sample XML result:

<Response>
<status>success</status>
<answer>AAA::AAA</answer>...

practicing perl now and hope to get uniq item from an array:

my current work:

#!/usr/local/bin/perl
my @source = ("aaa", "aaa", "bbb", "ccc", "ddd");

my $index=0;
my @uniq;

foreach...

dear all,

i got some questions about for/while loop when working on redirect command output to for/while loop.

take one for example :

in for loop :

allfiles=`find /var/log -maxdepth 1...

cause lots of files on two servers need to be deleted before service start....

if putting the 'find-exec-rm' command into background, then i can't control when it's finished..

dear all,

i'm preparing a script which can do these actions :

1. stop remove server's certain service
2. clean the files on remote servers simultaneously (because lots of files need to be...

not sure if it's called "group by" , but what i'm going to do is like this:

i have a file below:

192.168.1.10
192.168.1.10
192.168.1.10
192.168.1.11
192.168.1.15
192.168.1.15
192.168.1.20...

Dear All,

we have a command output which looks like :

Total 200 queues in 30000 Kbytes

and we're going to get "200" and "30000" for further process. currently, i'm using :

numA=echo...

Dear All,

We wrote a script to clean email mailbox when they're nearly full and put it in cron :

0 0 * * * /root/quota/autoclean.sh > /root/quota/autoclean.`date '+%Y%m%d'` 2>&1

I've run...

Dear All,

Recently got some sample from internet search for array handle in shell script, and I can not understand why we need to put double brackets when extracting array values by this way :
...

thanks so much for this easy way.

by the way, if i just only have the date '%s' format, is it possible to revert it to the regular date format?

for instance : if we receive a time string like...

Dear All,

Actually, i'm doing some reporting job and i need to pass yesterday's date in Year-Month-Day format(e.g. 2009-06-10) to another program for generating 2009-06-10 report.


to get...

Dear All,

I plan to write a script and in the beginning, I will check if there's any existing previous process running, if YEs, then exit directly, if Not, then continue.

#!/bin/bash

NUM=`ps...

Dear All,

I have one problem in using awk to format the output. can anyone help on it?

Here's the input file :

aaa:passwd_a:s
bbb:passwd_b:s
ccc:passwd_c:t
ddd:passwd_d:s

I intend to...

i guess there's one missing " in 4th line?
but after appending the " , it still doesn't work...

Dear All,

I have one file which looks like :

account1:passwd1
account2:passwd2
account3:passwd3
account1:passwd4
account5:passwd5
account6:passwd6

you can see there're two records for...

Dear All,

Can anyone advise why this script isn't run as expected?

===========================
status=0
cat /etc/passwd |
while read line; do
status=1
done

echo $status...