I need to write a script that is given a directory as an argument, and it prints the last modified file from that directory and all its subdirectories.
for example:
$ newest /usr/etc
--> /usr/etc/httpd/httpd May 28 12:16
If I had to do it only for the current dir, it would be easy...I'd probably use "ls -lt" and then show only the first line...
1. How can you find all first level subdirectories under the current directory?
2. How will you show the last 100 lines of the file "foo.log"?
3. How will you Stream the contents of a the log file "foo.log" as it gets written to?
4. How can you grep for a pattern on a gzip'ed file? e.g., find "foo" in bar.gz
5. Find all lines in the file "foo" which DON'T have the pattern "bar"
6. Your web server is running very slowly. If you can login to the server, what command will you run to find out cpu and memory use?
7. Extract the file foo which is a part of the tar'ed, gzip'ed file bar.tar.gz
8. You attach a usb disk to your linux desktop, but it does not show up. How can you get more information about the error?
9. What is the secure way to login to remote systems?
10. What is the difference between TELNET and SSH?
11. Given a file 'a' with the following permissions -rwxrwxrwx 1 rohit rohit 0 2011-01-24 13:30 a Change its permissions such that it is only readable and writable by its owner, not accessible by anybody else in the group and only executable by the world
12. Difference between using ' and " for quoting a string / command in a shell
13. In the attached text file (test.txt) replace all occurrences of 'red' with 'yellow' without using an editor (i.e. from the command line)
14. How would you suppress output written to stderr by a command
15. Meaning of the #! notation in scripts e.g. #!/bin/sh
16. What is the output of the attached shell script test.sh Scripting questions, all based on the attached file access.log. Use one of perl, python, ruby, or shell scripts to solve these questsions. If any answer is obtained using just the command line, please include those commands as well.
17. How many accesses were made between 10am and 11.30am on Jan 24, 2011?
18. How many unique IP addresses accessed this server?
19. For every IP address which accessed this server, output a report showing number of hits for every type of HTTP status. For e.g., IP 192.168.1.20 has 164 hits with status 404 and 1690 hits with status 200.
This question is very similar to this one except that I want to maintain the file's original subdirectories.
For example if I had
/temp/a/a.txt
/temp/a/a.jpg
/temp/a/b.txt
/temp/b/c.txt
/temp/d/d.txt
/temp/d/d.jpg
/temp/d/e.txt
/temp/f.txt
[Code]...
how to find the latest modified directory. I know that the command 'ls -rtl' gives the latest modified file/directory at the end. But my specific requirement is: If I create two directories named dir1, dir2 in the same order. so now my latest modified directory is "dir2". Now inside each directories, I created a file. Now in the last, I modify the file in "dir1". So overall, the content of dir1 got modified recently. If I use the command 'ls -rtl', this will still show dir2 as latest, as it is created recently. But I want the directory in which any internal content at any sub-hierarchy modified recently. so with what linux command I'll get this latest modified directory (dir1)?
View 3 Replies View RelatedI use RadHat Linu5.We usually log in to LINUX via putty (remote). Very often many people use the same user and password to log in.I wonder how to tell who has edited/modified a file?
View 9 Replies View RelatedI use RadHat Linu5.
We usually log in to LINUX via putty (remote). Very often many people use the same user and password to log in.
how to tell who has edited/modified a file?
I am new to Scripting. I am trying to find out particular file is modified in last one hour or not in script and then if that file is modified in last one hour i need to copy that file to another directory.Can any one please provide me how to check the file is modified in one hour or not?
View 3 Replies View RelatedIs it possible to find out the directory Thunar is currently displaying from the command line? I will only have one instance of Thunar open at one time.
View 3 Replies View RelatedAssumed y directory structure looks as follow:
Code:
--root
-- dir1
-- dir1-1
[code]....
And under each sub dir there are some log files ended with .log. Now I know how to list all these log files with:
Code:
find . -type f -name "*.log"
Assumed now there is a string called "Hello World" inside some of these files. How can I find out these files? I try followings but failed
Code:
grep "This is" | find . -mtime 0 -type f -name "*.log"
I have several directories of subtitles for some videos, but all the text for the subtitles in each file is in uppercase, and I would like to convert the files' content to lowercase, all in one go. I found on a website a bash command that would do each file separately:tr '[:upper:]' '[:lower:]' <input.txt> output.txt but of course involves specifying the input name and output name for each file.I have been trying to do it in a script that would work for all files in the current directory, without having to rename them each time, if that's possible. So far I've got the following, which doesn't work:
#!/bin/bash
for file in $@; do
tr '[:upper:]' '[:lower:]'
done
However, my web searches cannot locate a way of specifying "each file in current directory" in conjunction with the "tr" command, but also without having to rename the file once converted to lowercase. Is it possible, or would the tr command have to create a new file for each converted file?
I'm trying to compile a program from source. When I run make the following appears:./ config. status --recheck make: ./config.status: Command not found make: *** [config.status] Error 127.There is no file called config. status in the current directory. Why was it not created?
View 1 Replies View RelatedI am total new to linux as I worked mostly on RTOS (symbian). My problem is, I need to find the file IOSTREAM.H and I am following commands below:
1) cd /
2) find . iostream.h ( finds the file / directory from the current path)
It shows No such File or Directory
Code:
$ echo 2 * 3 > 5 is a valid inequality. This will create a file in the current directory named '5' with the number '2' in it, the names of all the files in the current directory, followed by the number '3' and 'is a valid inequality.'
What I do not understand is why 'is a valid inequality' gets written to this file. I thought it would write '2', all the file names in the current directory, then '3' into the file called '5'. Why does the 'is a valid inequality.' get written to the file also?
I've been doing some file-sharing with Ubuntu. And I've noticed that the files only in the immediate directory is shared, the rest of the folders are shown in other PCs but access is denied. How can I share all the subdirectories in a folder without having to them manually?
View 6 Replies View Related### TO DO: Determine the report file name based on the source directory name and current date### The report name and thumbnail directory must follow this pattern: source-%j-%H### for example, for pictures in /home/you/pictures, the file name will be: pictures-%j-%H### HINT: Use sed to extract the directory name from the path and combine it with date command output
View 1 Replies View RelatedI've found several posts discussing how to do this in with the terminal, but none exactly fit what I am trying to do. And since I'm still very new, I was hoping for some help.
I have a parent directory called "Music." The subdirectories all start with "artist", some go further as in "artist/album/cd1". So right now the structure varies in the following ways code...
How can I move all the files (or the file types that I choose) to the parent directory "music"?
(By the way, for any who are interested, this is so that I can use an external hd with a PS3. ("playstation 3"--for anyone who was in my predicament searching the threads)
Where can I find the vmlinux file corresponding to my current running fedora core 10 kernel? I find only vmlinuz file in /boot
View 5 Replies View RelatedI tried searching for files in documents: joe@Debian:~/documents$ find -iname *.odt ./canadian-public-holidays.odt I then moved to the work_search directory which is located in documents: cd work_search joe@Debian:~/documents/work_search$
joe@Debian:~/documents/work_search$ find -iname *.odt
[Code]...
I'm having trouble figuring out how to list the contents of a directory and exclude any subdirectories.
View 5 Replies View RelatedI have .jpg files in many subdirectories from where I need to copy all the images from all the sub directories and paste them to a specific directory.I have used `cp -rf *.jpg media/sik/` which only copies the .jpg files of the directory in which I was working.
View 5 Replies View RelatedI am a noob and I am trying to display a count of the number of subdirectories in a directory. I have been able to use find -type d to list directories and subdirs but I want a numerical value of dirs and subdirs. I know ls -l gives a count but when I try ls -l -d all it shows is "." I also have tried a combination with the -R option but nothing seems to be working for me.Please forgive my ignorance but I am working on a script for class and this is the first step.
View 3 Replies View RelatedIn reading the rsync man page and browsing a lot of websites, I ended up a bit confused, or maybe it was just too much eggnog. Anyway, to exclude a directory "videos" with everything in it, which is /home/user1/camera/videos and I'm rsyncing the whole user1 directory to an external drive
[code]...
I'm able to use the following to remove the target directory and recursively all of its subdirectories and contents. find '/target/directory/' -type d -name '*' -print0 | xargs -0 rm -rf
However, I do not want the target directory to be removed. How can I remove just the files in the target, the subdirectories, and their contents?
I need to give a user write access to /var/www and its subdirectories. The current directory permissions are as follows:rwx r-x r-x root root
I added the user to the root group but that didn't seem to help.I read I could chmod -R to change the access to write for the www directory and subdirectories but I don't want to change things and mess up the website. How can I give the user access to write to the www directory and subdirectories without messing anything up? Would changing the www directory group owner to his group cause an issue anywhere?
I am trying to write a very simple script that will go to every subdirectory of a single directory and run a command (lets call it make_ndx).I know I can write this the long way with in a text document with something like:
cd /"the directory"/"the 1st subdirectory"
make_ndx
cd ..
cd "the 2nd subdirectory"
cd ..
Alternatively, I also tried: for i in 'find /path/somemorepath -type d -mindepth 1'; do cd $i; make_ndx -f *.gro; done which returns me with the error cd: find: no such file or directory. But if I run the find command by itself to test if I am calling the right directories, it gives me the exactly the output I am looking for. Any ideas? Should I just write the find results to a file and loop through the contents of the file (which seems a little bit like overkill) or am I just making a simple typographical mistake and I am just not seeing it?
How can I allow normal users to mount a tmpfs under any subdirectory owned by them?
View 3 Replies View RelatedThis should be a quick one. I'm trying to backup a single directory and it's subdirectories on my Lucid Server to a freenas box across my network. This is what I'm using to do that..
rsync -r -a -v -z * --delete freenas:dSIBackups It almost works perfectly except for one problem. When a file is deleted at the source, this command doesn't seem to delete it on the receiving end. I assumed that the --delete would do that but aparently not. Can anyone think of a reason that this would happen?
so I was wondering how I could do a simple find which would order the results by most recently modified. Here is the current fine I am using. (I am doing a shell escape in php, so that is the reasoning for the variables. find '$dir' -name '$str'* -print | head -10
How could I have this order the search by most recently modified. (Note I do not want it to sort 'after' the search, but rather find the results based on what was most recently modified)
I need to know all files modified within a date and time range.E.g: All modified files between 20 April 2010, 1100-1200 Hrs."find / -mtime +10 ! -mtime +11" :: this i found for date but how to include time as well.
View 2 Replies View RelatedI need to copy all subdirectories and files from one directory to another ever 5 minutes or so, with the old data automatically being overwritten with the new data. I'd also like this to run at startup. Is there any way this can be done? If so, what program would I need to schedule the automation and what is the command line I would need.
View 2 Replies View Related