How To Search All Sub-directories For A File Or Command Line In A File In Ubuntu?

hey guys,

Let's say I want to find out which log files have related ntp information in them. I use cat and grep to search through the files in /var/log and then export that to a file. this is the command...

# cat /var/log/* | grep ntp > /home/log.txt

The file created from this command will not include the directories the log entries are apart of. Why not? For example, if you do this same command without exporting to the /home/log.txt file it will show you in stdout which directory each log entry is in. Hope I'm making sense here. My question is, is there a clever way to export to a file in a way so that the file created is structured exactly like the stdout of the command below?

# cat /var/log/* | grep ntp

Using a Kingston 4GB datatraveler for drive creation
Created using amd64 1.1.0a of the Kali ISO verified from Kali.org
Drive created using Ubuntu 14.04 on a Dell Latitude E5500

dd seems to create the drive with no errors. The drive boots to the error. Hard reboot into Ubuntu to search for solution has led me to a long series of issues that I have been trying to correct.

A possible fix for the failed to load error is to copy the file to the root of the USB drive (/dev/sdb1). Drive is created with a hidden HPFS/ NTFS fs. 0x17. Changed FS to HPFS/NTS (0x07). Drive now mounts, but when attempting to copy onto drive, I get an error that the file system is read only.

I try to correct the issue using nautilus and the properties menu. It does not allow me to change the view only to read/write even though it shows me as the owner.

I think maybe a command line thing would work, or who knows what else. Maybe an fstab entry? I am continuing to search the web, and hope to work this out.

Any help would be appreciated.

hi,

I am newbie in Linux shell scripting.Can anybody help me to check the presence of file identified by variable in Shell scripting?

For example: I am reading the content of a file using while command as below:
"while read -r line
do
code block
done < file_name"

Now in this case every line in file gets stored in the variable 'line' one by one.Problem here is every line in the file is nothing but the file_path of another file say xyz.txt and I am checking presence of this xyz.txt file using below command:
if [-f $line]
as 'line' is the variable which stores file path of xyz.txt but it is not working. It is unable to check the presence of this xyz.txt file as i am addressing it with the variable 'line'.

Please help me.Thanks in advance.

Hi,

I have been trying to get information on how to process the output of a tcl file (aodv and leach protocol using mannasim) which I got on my command line Iinterface. Actually, I don't even know the keywords to search as I am new to this and other minor attempts haven't yielded positive results., I know there is usually a trace file but I can't see any. All I see is on my command line.

I also observe that it took the space on the entire screen and I can't copy the output from the start ( I could only copy from node 19 out of 30 nodes) because of the huge number of output lines.

The last thing I havent been able to figure ou is whether temperature is equivalent to energy Iin mannasim as mannasim has only temperature and carbon dioxide?


Thanks

If there is one Windows XP feature that I greatly miss in Mint, it is the Search Companion.

I have been struggling with 'grep' in order to create something suitable but with limited success. Take the following problem:-

I wish to interrogate the folder home/dell/Documents/Domestic/Recipes, searching for all files containing the word "mushroom" or "mushrooms", ignoring case. (I can manage the latter. )

Each individual file search should terminate at the first instance of a match and move to the next file. (Recursive, yeh?) Only the file names need to be listed and the output should be paged to allow for easier reading of long lists.

Several different types of file may be involved, including .doc, .odt, .txt .pdf, .htm and .rtf. It would be nice to include all of them in one command. (Wild card behaviour in grep is not entirely predictable - at least not for me.) Running a separate grep command for each different file type would be tedious.

A significant difficulty is that, if grep fails with a syntax, or run-time error, it generally reports the fact but it also has a habit of producing no output, perhaps not returning to the command prompt, whilst sitting inviting the user to decide what to do next. What makes this particularly frustrating is that some file types might not be amenable to a grep search. Text in .txt files and, it would appear, .doc files appears to be searchable but I suspect that .odt files might be more problematic. The snag in such circumstances is trying to interpret grep's response. Does a null return mean that no match was found or that the file format cannot be successfully interrogated? Such failure might not be apparent if the associated file names are simply excluded from the output list.

Apart from grep, is there any other software that would do the job? Sadly LibreOffice Writer seems to be lacking in this area.

Hi,

I have Redhat 5.3 running on my machine. But when I am login through putty it gives me below error.
Without running any grep command I get this error on login and the grep command doesn't work.

login as: root
root@IP's password:
Last login: Mon Feb 16 15:27:55 2015 from IP
-bash: /bin/egrep: cannot execute binary file
-bash: /bin/egrep: cannot execute binary file
-bash: /bin/egrep: cannot execute binary file
-bash: /bin/grep: cannot execute binary file
-bash: /bin/grep: cannot execute binary file
[root@bkpdrill ~]# grep MemTotal /proc/meminfo
-bash: /bin/grep: cannot execute binary file

I am writing a pythong program which has command line executions for linux like ls and restart. I want to know how to pass the errors from the command executed to a file so that it becomes a log.

Hi i am trying to use the dd command to create an iso of my Ubuntu machine but am having some problems with the syntax trying to do it using an external hard drive as the file location.

can anyone help me out?

Hey guys,

Something is puzzling me!

I saw someone use the grep in the following way and I'm not sure I understand what it does, and if there's any benefit to using it this way.

Code:

grep X.X.X.X /var/log/log.log | grep -v query

I checked the man file which confirmed that -v is relating to matching non grouping lines (which I'm not sure I fully understand either!) but I don't see any difference in the output of the above command versus the same command without the | grep -v query bit..

Why would you pipe grep into grep unless you were searching for something specific within the search results?

Does query mean something else?

Hi Forum,

I have a network printer (HP) running on 192.168.85.24 and I wish to install something that enables me to just shoot pdf och ps files directly to it from the command line, however, it has been hard finding something that describes how to make a bare bones setup like that, the most info I find talk about user interfaces, clicking menues opening web browsers etc, I want things incredibly simple, then they are more robust.

Do you have a tutorial on how to just get an HP-printer to accept ps och or pdf files from the command line?

I run Debian with LXDE and have contact with the printer. (I tested with ping.)

Another question I have is for this forum, do you have a search function? If I had had a search function I would have searched for an answer to the question before posting it.

Kind regards
Johnny