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problam with diff

nirnir26 — Fri, 20 Nov 2009 18:03:14 GMT

hi, I want to compare 2 files and see if there is a difference between them
so i did:
set aa = `diff file1.txt file2.txt`
if ($aa == "") then
echo "no difference"
else
echo "different files"
endif

and i get the error msg:
if: Badly formed number.

now when im doing the ccomperation like this:
set aa
if ($aa == "") then
echo "no difference"
else
echo "different files"
endif

it works good.
why the diff doing problams??
what can i do?

Auditd problem

mojoman — Fri, 20 Nov 2009 15:15:55 GMT

Hi,

I have the following my logs:

Code:

Nov 20 04:02:04 mail-07 kernel: audit: audit_backlog=326 > audit_backlog_limit=320

Nov 20 04:02:04 mail-07 kernel: audit: audit_lost=4272 audit_rate_limit=0 audit_backlog_limit=320

Nov 20 04:02:04 mail-07 kernel: audit: backlog limit exceeded

Nov 20 04:02:04 mail-07 kernel: audit: audit_backlog=326 > audit_backlog_limit=320

Nov 20 04:02:04 mail-07 kernel: audit: audit_lost=4273 audit_rate_limit=0 audit_backlog_limit=320

Nov 20 04:02:04 mail-07 kernel: audit: backlog limit exceeded

Nov 20 04:02:04 mail-07 kernel: audit: audit_backlog=326 > audit_backlog_limit=320

Nov 20 04:02:04 mail-07 kernel: audit: audit_lost=4274 audit_rate_limit=0 audit_backlog_limit=320

Nov 20 04:02:04 mail-07 kernel: audit: backlog limit exceeded

Nov 20 04:02:04 mail-07 kernel: audit: audit_backlog=326 > audit_backlog_limit=320

Nov 20 04:02:04 mail-07 kernel: audit: audit_lost=4275 audit_rate_limit=0 audit_backlog_limit=320

Nov 20 04:02:04 mail-07 kernel: audit: backlog limit exceeded

What do I do to fix this problem? Please provide a careful explanation as I am new to auditd.

Thanks

(/var/log/messages) issue

mojoman — Fri, 20 Nov 2009 14:55:17 GMT

Hi,

I found this in my logs today for vsftpd:

Code:

Nov 17 08:43:58 ftp vsftpd: Tue Nov 17 13:43:58 2009 [pid 26389] [ccm] OK LOGIN: Client "205.150.86.90"

Nov 17 08:44:49 ftp avahi-daemon[2443]: Withdrawing address record for 205.111.86.22 on eth0.

Nov 17 08:44:49 ftp avahi-daemon[2443]: Leaving mDNS multicast group on interface eth0.IPv4 with address 205.111.86.22 

Nov 17 08:44:49 ftp avahi-daemon[2443]: iface.c: interface_mdns_mcast_join() called but no local address available.

Nov 17 08:44:49 ftp avahi-daemon[2443]: Interface eth0.IPv4 no longer relevant for mDNS.

Nov 17 08:44:49 ftp avahi-daemon[2443]: Withdrawing address record for fe80::213:20ff:feaf:2fae on eth0.

Nov 17 08:44:49 ftp avahi-daemon[2443]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::213:20ff:feaf:2fae.

Nov 17 08:44:49 ftp avahi-daemon[2443]: iface.c: interface_mdns_mcast_join() called but no local address available.

Nov 17 08:44:49 ftp avahi-daemon[2443]: Interface eth0.IPv6 no longer relevant for mDNS.

Nov 17 08:44:50 ftp kernel: ADDRCONF(NETDEV_UP): eth0: link is not ready

Nov 17 08:44:50 ftp kernel: e100: eth0: e100_watchdog: link up, 100Mbps, full-duplex

What is going on?

Using a case statement with a range of numbers

fufaso — Fri, 20 Nov 2009 13:56:34 GMT

Hey guys,

I'm trying to setup a case statement that checks a value against 5 separate ranges of numbers.

Here are the things I've tried with no success.

case "$AGE" in
"<10") echo "You're in this decade.";;
"[11..20]") echo "You're in this decade.";;
"[21,30]") echo "You're in this decade.";;
"[31-40]") echo "You're in this decade.";;
"[>41&&<50]) echo "You're in this decade.";;

esac

Anyone have any ideas as to set this up?

$#, $!, $? etc...

skinnygav — Fri, 20 Nov 2009 12:53:29 GMT

Hi all,

In Bash shell, do the references $#, $$ etc have a collective name?

Also is there any way of finding a comprehensive list of those that are available and what information they store?

many thanks

skinny

string empty

nirnir26 — Fri, 20 Nov 2009 12:35:29 GMT

i have a veriable

set var1
set var2 = abcd

how can i check if var 1 is empty and if var 2 is not empty ???

Check Directory with shell script.

agnivaccent — Fri, 20 Nov 2009 06:49:21 GMT

I need to check a folder with variable number of sub-directories and print the contents of all these sub-directories.

Suppose the folder is X.
The sub-directories are X1, X2, X3.....(variable).
I need to check how many folders exists(ls -lrt) and also print the files/directories present inside X1, X2, X3....

What is the best way to do this?

---------- Post updated at 12:19 PM ---------- Previous update was at 12:13 PM ----------

I'm using shell script(.sh) to do this in an SSH session.

In need of explanation

Lillyt — Fri, 20 Nov 2009 04:34:22 GMT

Its great someone provided this script that strips out a filename and extension but can someone explain how each line works?

file1='Jane Mid Doe.txt'
newfile='Jane.txt'

1) ext=${file1##*.}
2) filename=${file%%.???}
3) set -- $filename
4) newfile="1.$extension"

/dev/fd question

momo.reina — Fri, 20 Nov 2009 01:56:06 GMT

what exactly is going on in this piece of code? what is the role of /dev/fd? i know that /dev/fd/0 is somehow linked to standard input, but that's the extent of my knowledge

Code:

cat header.txt /dev/fd/0 footer.txt

Process stopped: WCHAN pipe_w

jlopezperez — Fri, 20 Nov 2009 01:22:53 GMT

Hi. Before throwing my question, thanks to everybody for paying attention. Sorry if my english isn't good enough, but it's not my mother tongue.

That's my question:

I have a java program that throws an external program with "Process p = Runtime.getRuntime.exec(***)". The communication between them is by xml files. Mi program writes a file that will be the input of the other, and the other one writes an output file wich my program reads after wait with "p.waitFor()". Both programs are executed in a remote server through an ssh connection.

My problem is, sometimes, my java program freezes. If I take a look to the running process with "ps -l" the result is similar to this:

Code:

F S   UID   PID  PPID  C PRI  NI ADDR SZ   WCHAN  TTY          TIME    CMD

0 S  712     ****  *******1  2  97  19     -     *****  184466      ?          **********    java

0 S  712     ****  ******  99  99   19       -   *****  pipe_w     ?          **********    ext.prog.

I'm not looking for someone to solve my whole problem, but if you could give me at least some clues about what does pipe_w means and what could cause it I'd be very grateful.

Thanks a lot.

Edit: I forgot to say that it doesn't happen always. For example, sometimes it fail all the executions over an hour, and sometimes it works fine all day. I don't know if it's about my program, something that it's happening in the server...

Edit again: This is the actual situation. The other one was a "reconstruction" xD

Code:

0 S   712 26295     1  0  97  19 - 365416 184466 ?       00:02:47   java

0 S   712 29201 26295  0  99  19 - 60796 pipe_w ?        00:00:00 **********

---------- Post updated 20-11-09 at 02:22 AM ---------- Previous update was 19-11-09 at 11:27 AM ----------

I found the problem, thank you. It was a bug in the external program that produced an unfinished loop. I think you can close this thread.

Sorry for the quotes.

check if file exist, and create file

nirnir26 — Thu, 19 Nov 2009 19:46:39 GMT

hi i have 2 questions:
1. how can i check if file exist in vi?
i tryed to do:
if [ -s $file ]; then
echo file exist

but i get from the compiler
if: Expression Syntax.

2. how can i create file in vi?
when im using cat - so the script stop and wait for me to write somthing into the new file
when im using touch - the file created, but i get the messege :
touch: file arguments missing
Try `touch --help' for more information.

???

Display just CPU run queue number (Nothing Else)

RAFC_99 — Thu, 19 Nov 2009 18:34:42 GMT

Im using the vmstat command to display the CPU run queue, but i want to put that into a program so is there a way to just display the number under the r?

Thanks,

Converting columns into rows

cosmologist — Thu, 19 Nov 2009 16:43:46 GMT

Is there anyway to convert columns into raws using awk? (or any other command line):eek::eek::eek::eek::eek::eek::eek::eek::eek:

How do you automatically source a .cshrc_local?

blitzkreg6 — Thu, 19 Nov 2009 16:16:48 GMT

Hello,

When signing into my UNIX account I have to manually source my .cshrc_local

Is there a way to have my ID source that .cshrc automatically when I first sign in?

Thanks for any help

G

Ownership of files in bin directory

j490428 — Thu, 19 Nov 2009 15:54:08 GMT

When I checked to see who or what owns the files in my bin directory I noticed that some were owned by root while many others were owned by bin.

Should I be concerned that there are files in this directory owned by bin or is bin the same as root as it pertains to limiting access to the files in this directory?