Bzip2: (stdin) Is Not A Bzip2 File. Error

Hi all,

Been reading on stdin, stdout and stderr and encounter 2 questions, hope gurus here can advise.

0 = stdin
1 = stdout
2 = stderr

Code:

Sun Dec 21 03:53:42 SGT 2014 > cat test5.sh
#!/bin/bash

echo "Please enter value for name :"
read name
echo "Your name is $name."

echo "Next echo will be a syntax error"
ehco

Code:

Sun Dec 21 03:53:46 SGT 2014 > test5.sh 1> output.txt 2> error.txt
Noob

Sun Dec 21 03:54:56 SGT 2014 > cat output.txt
Please enter value for name :
Your name is Noob.
Next echo will be a syntax error

Sun Dec 21 03:55:23 SGT 2014 > cat error.txt
/home/alan/scripts/test5.sh: line 8: ehco: command not found
Sun Dec 21 03:55:26 SGT 2014 >

Which so far all is good and the correct way to output everything including error to a single file is

Code:

Sun Dec 21 03:59:14 SGT 2014 > test5.sh > output.txt 2>&1

Q1) How is a command being interpreted in linux , the sequence in which it is interpreted ? from left to right ? right to left ?

Shouldn't it be

Code:

test5.sh 2>&1 1>output.txt 
or 
test5.sh 2>&1>output.txt ?

Regards,
Noob

System Info:

I have normal user in CentOS 7 whose name is "mostafa" (the name of the account).

I naturally have another user called root with all privileges. User "mostafa" is put into sudoers file, too.

The OS is installed in VmWare, so the system is all mine.

Problem:

Now I create a file with touch file.sh and put a command in it, but when I want to run it with Code:

sudo ./file.sh

, an error is shown that the command Code:

./file.sh

does not exist. But if I Code:

 sudo chmod 777 ./file.sh

then it gets run. My question is that, why should I use Code:

chmod 777

when I myself have created the file, and I am in sudoers.

Can anyone explain me why shuold I still use Code:

sudo chmod 777

when the creator of the file is me.

I'm trying to get MRTG set up on Ubuntu 14.04 and cannot get snmpd to install correctly. Every time I try to install I get this error

/usr/sbin/snmpd: error while loading shared libraries: libnetsnmpagent.so.30: cannot open shared object file: No such file or directory
invoke-rc.d: initscript snmpd, action "start" failed.
dpkg: error processing package snmpd (--configure):
subprocess installed post-installation script returned error exit status 127
Processing triggers for ureadahead (0.100.0-16) ...
Errors were encountered while processing:
snmpd
E: Sub-process /usr/bin/dpkg returned an error code (1)

I've tried numerous possible fixes for this and have not found anything that works. Any help is greatly appreciated.

I have a shell script to find folders which are 25 days older and delete it, and put the deleted folder details into log file like this

Code:

 find /ahome/xxx/$FOLDER -type d -mtime +25  -exec ls -ld {} \;  -exec rm -rf {} \;  >> mylogfile.log

after running this command it deletes the folder and logs the folder deleted. But also print error msg
Code:

find: /ahome/prksh/dir/test: No such file or directory

How to suppress the error msg

https://code.google.com/p/wavelet1d/...ar.gz&can=2&q=

The above link is where I downloaded *.cpp(s) and the libraries.

If you "untar" the package, in "examples" directory, there are some demonstration files. What I wanted to do was to make an executable file out of "wavedemo1.cpp".

I modified the code in "wavedemo1.cpp"; Code:

#include "wavelet2d.h"

to Code:

#include "wavelet2s.h"

, then placed the header file "wavelet2s.h" (from /wavelib/src/linuxstatic) and the modified "wavedemo1.cpp" into my working directory.

Inside the working directory, I ran the following command

Code:

gcc -L/home/mario/wavelet/wavelib/linuxstatic -lwavelet2s wavedemo1.cpp -o wavedemo1

Then I get the following error messages.

/usr/bin/ld: skipping incompatible /home/mario/wavelet/wavelib/linuxstatic/libwavelet2s.a when searching for -lwavelet2s
/usr/bin/ld: cannot find -lwavelet2s
collect2: error: ld returned 1 exit status

I'm not sure what went wrong with my approach. This is my first time trying to use libraries on linux and it's giving me really tough times.

I would appreciate your help, please let me know if you need more details to explain things.

Thanks.

I did some changes in the LAR protocol and suppose the new protocol is named as ABC .
When i am doing make clean and then make.
object file "ABC.o" was successfully created.
Then i tried to run tcl file , nothing has been written in the trace file and it gave me the following error

21052015$ ns234 new.tcl scen1 setting other default settings...
removing unecessary packet headers...
num_nodes is set 100
INITIALIZE THE LIST xListHead
loading mobility file
loading traffic file
Starting Simulation...
Segmentation fault (core dumped)

I tried a lot but unable to find out where is the error. I am unable to find out the point of error . Is it in .cc file or in .tcl file.
Could someone please help me.
My work is stucked and i searched a lot but didn't get anything.

please please .............. help me

Hi Experts,

I am trying to make new enteries in a csv file in new column but am not able to do so.Please help for the same.

Requirement:

There are multiple directories & within those directories i have sub-directories and i want to build a csv file with 2 columns of Directories mapped to their sub-directories. Can you please help me with this. I tried the following code:

Code:

#!/bin/bash

homeDir="$HOME"



ls ~/Parent/ | cut -c1-9 > ~/test_111.csv

while read Child

do

Entry="$(ls $homeDir/Parent/$Child/ABC/XYZ/DEF/PQR)"

echo $Entry

for (( c=1; c<=5; c++ ))

do



sed -i ci"$Entry" test_222.csv

done


done < test_111.csv

Basically i want two columns of csv file , First column should have Child name & Second cloumn should have Sub-Directory name inside PQR Directory.

Any help will be useful on this.

Thanks in Advance!

Best Regards,
Vijay Bhatia

I have made a change to GRUB2 bootloader in etc/default/grub.
Now I need to run 'update grub' for the change to take effect.
However, the 'update grub' command on the terminal is giving this error message:
Code:

root@debian:/# update grub
bash: update: command not found

Can someone please explain why this command is no longer working?

I've had to make a change to grub because I tried to install a new distro which meant I had to alter grub.
The install wasn't successful so I deleted the grub file and then re-installed it.
The re-installed grub needs a change so I can get sound on my pc.
However, I can't add these changes because the 'update grub' command doesn't work.

I've checked the grub file with another debian distro and they are both the same.
So now I don't know if I need to check if a different grub file is the problem or anything else.
Can someone help?

(Raspberry Pi Model B)
I have a really long audio file I'd like to play.
It's 10 hours long (white noise)

However, when playing it with mplayer it only gets to 4 hours before determining it's now end of file.

Code:

A:14360.8 ( 3:59:20.8) of 36080.8 (10:01:20.7)  7.2


Exiting... (End of file)

I know the audio file isn't corrupted past this point since I can fast-forward to 3:59:00:0 and let it play and it works fine (at least for the 2m I let it play)

I could in theory break up the file into 3.5 chunks to stay below the limit but I'm wondering if this is a inherent limitation of mplayer (didn't expect 4hr+) or if it's a bug.

I have simple c code and I want to make .bin file to run on friendly arm board. In redhat I install cross compile gcc and Use "gcc -o hello hello.c" this command to make object file. when I run this file in friendly arm it give "line 1: syntax error: unexpected "(" "

Thanks
--
Abdul Wahab