Use this tag for questions about file management and operations on files.

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2
votes
1answer
168 views

Why are the timestamps on files so old on my newly installed system?

I installed the Red Hat Enterprise Linux 5.6 on a client system today. If it is of any concern, it's running on the bare metal. After the installation was completed, I did ls -ltr / and it showed a ...
4
votes
4answers
2k views

How to visualize directory tree structures?

I know I can use tree to show the nested content of a directory. Alas, its output is hardly beautiful as I want to include it in a documentation. So eye-candy is a requirement. So I was wondering if ...
4
votes
2answers
984 views

Perform commands on selected items in Midnight Commander

How can I perform a command on the selected items ? for example calling vim, or gimp for the 5 text or image files selected. I tried to make use of the inlined command line at the bottom, but it ...
2
votes
2answers
591 views

Pre-defined umask under a given path [duplicate]

Possible Duplicate: How to set default file permissions for all folders/files in a directory? Say I have default umask, umask1. I would like all files/folders that I create/modify under a ...
2
votes
1answer
157 views

vim not shown in fuser

First use Vim to edit a file, say /tmp/A. Assuming that vim process is the only one that accesses /tmp/A, then use "ctrl+z" to suspend the process, and execute fuser /tmp/A Then you see nothing ...
1
vote
3answers
235 views

How to move all files plus hidden to folder down?

I want to move all my drupal files in www folder to html folder. I don't know how to do this in terminal and I'm not sure if all folder and files including hidden ones are drupal in the www folder, is ...
0
votes
1answer
618 views

Cannot execute binary file on Linux server [closed]

I'm currently trying to run Knime (a Java-based program) on a Linux server, and every time I try to execute the file (knime) it gives me a "cannot execute binary file" error. I've posted the relevant ...
5
votes
1answer
165 views

Wrong emblem used for PDFs created by LibreOffice

If I create a test pdf file in a directory, by using something like ls -al > testpdf.pdf the file is shown in Caja 1.4.0 with an understandable emblem that is 'acrobat-like'. If I create a ...
2
votes
2answers
2k views

Sphinx Search shutting down after `FATAL: accept() failed: Too many open files`

I'm running Sphinx Search Server V2.06 ( the latest stable release ) on an Amazon EC2 with Linux CentOS. In general it is running fine, but the searchd.log is showing this error over and over with ...
2
votes
1answer
61 views

remotely query text file associated with an instance of vi

I have opened several text files (a.txt, b.txt, c.txt, ...) in different sessions of vi launched from different instances of a bash shell. Having then accessed that machine remotely, I wish to ...
1
vote
1answer
83 views

Does a return from a shell command guarantee that output files have been written?

I'm building an OSX app and use the screencapture command to grab a screenshot and write it to disk: screencapture -mT0 ~/screenshot.png Can I, if I'm not running a UNIX commands in the background, ...
2
votes
2answers
971 views

Sort the output of find before piping to openssh

I'm using this command to recursively generate a SHA-512 hash for each file in a directory hierarchy: find . -type f -exec openssl sha512 {} \; I'd like to sort the files in lexicographical order ...
2
votes
1answer
446 views

How to make difference between .wxm (wxMaxima) and .c files in Linux Mint?

I installed wxMaxima on my laptop a few days ago. The issue is that files with the extension .wxm, that are used with wxMaxima, are identified as a C source files. Therefore, when I double click on ...
3
votes
2answers
468 views

Linux isn't sure whether a file exists or not [duplicate]

Possible Duplicate: Getting “Not found” message when running a 32-bit binary on a 64-bit system ts3user@...:~/ts3$ dir CHANGELOG LICENSE doc ... ts3server.pid ts3server_linux_x86 ...
4
votes
1answer
235 views

Linux Icon Naming Conventions

Is there a naming convention in Linux when it comes to application icon filenames? What I'm referring to is the practice of including the icon size in the filename if the application uses multiple ...
1
vote
1answer
644 views

Samba share file permissions - users can't open files that I create

I have set up an Ubuntu server (12.04 LTS) for samba file sharing. The problem I'm having has to do with files that I create on the server. Other users can't open them because I created them under a ...
1
vote
1answer
185 views

What does - mean with association to Linux files and directories [duplicate]

Possible Duplicate: What does “--” (double-dash) mean? What does '--' (two dashes) mean with association to Linux files and directories. I've found something else but not too sure if it is ...
1
vote
1answer
935 views

How to move files with same name and concatenate

My directory structure is given below. I need to move all the folders from Test3 to Test2 and concatenate the files with same names [jg@hpc Test2]$ tree . |-- Sample_1008 | |-- ...
1
vote
1answer
2k views

Accessing another user's files

I have a file "abc" with permissions 440 .The owner of this file is "root" and the group of this file is "groupabc" . I have a user "user1" .Is their anyway I can see the contents of files "abc" using ...
6
votes
5answers
4k views

How do you write specific bytes to a file?

Given a file myfile with the following contents: $ cat myfile foos A hexdump of the file gives us the contents: $ hexdump myfile 6f66 736f 000a Currently, I can create the file by specifying the ...
1
vote
1answer
405 views

Bit-shifting a file

I wonder if there is an utility to read and print a (binary) file, shifted by some amount of bits (i mean, it should accept amounts, which are not divisible by 8). .. something like dd (and its skip ...
2
votes
4answers
16k views

Unix Command to return all files that end with single digit and TXT extension

Which command returns all files that end with a single digit and have the TXT extension ?
8
votes
1answer
2k views

Are limits.conf values applied on a per-process basis?

I'm tuning the nofile value in /etc/security/limits.conf for my oracle user and I have a question about its behavior: does nofile limit the total number of files the user can have open for all of its ...
3
votes
2answers
2k views

How to prevent users from deleting a directory?

I tried "chattr +i DIRNAME", it's great, but I cannot create files in the DIR after chattr. What else are there to prevent users from deleting a Directory? root@HOST ~] mkdir test [root@HOST ~] ...
2
votes
5answers
6k views

Get the newest file from directory structure year/month/date/time

I store backups of databases in a directory structure year/month/day/time/backup_name an example would be basics_mini/2012/11/05/012232/RATIONAL.0.db2inst1.NODE0000.20110505004037.001 ...
2
votes
2answers
63 views

Searching for terms in a set of files

I have two files: files_to_search.out terms_to_search.out I'd like to create a command that identifies terms in terms_to_search.out that are not used in any of the files in files_to_search.out Is ...
2
votes
3answers
424 views

How to get the distribution of file sizes?

I'd like to know the distribution of file sizes under a certain directory. Please note: distribution of file sizes, not size of a directory. That means I want to know there are 25 files of 60 bytes, ...
21
votes
5answers
44k views

How to list all files in the size order

I would like to list all files in the order of big to small in size and the files could be present anywhere in a certain folder.
0
votes
1answer
133 views

Cent OS 6.3 Hidden files in shell

I need help, I want to be able to check whether a file is hidden or not in Cent OS 6.3. These are often referred to as (dot) files but I can clearly see Cent OS 6.3 handling these by appending a ...
1
vote
1answer
2k views

cannot 'ls' /mnt directory

I have a CentOS-6 machine that I'm working on that is running a live database. It's having a problem with the /mnt directory. I cannot ls the directory for some reason. stat is working and shows ...
4
votes
0answers
154 views

Move a file and re-target all of its symlinks [duplicate]

Possible Duplicate: How can I “relink” a lot of broken symlinks? Is there any way to move a file to a new location, and then re-target its symlinks to the new location, using a shell ...
11
votes
2answers
2k views

How to separate Awesome's `rc.lua` configuration into multiple files?

I've just moved to Awesome WM from OpenBox. I like that it's very extensible, customizable and I have huge control about window layout. I like structured and organized things and I'd like to separate ...
9
votes
5answers
5k views

Gedit won't save a file on a VirtualBox share: Text file busy

I have a text file that I can change using other applications (for example openoffice). But when I try to change and save it using gedit, I am getting error from gedit: Could not save the file ...
6
votes
5answers
1k views

Find images by size: find / file / awk

I've been trying to find png image files a certain height (over 500px). I know that file will return image dimensions. Example: $ file TestImg1a.png TestImg1a.png: PNG image data, 764 x 200, ...
-1
votes
1answer
235 views

How to add a string of numbers to multiple text files in a directory?

file.txt file2.txt file3.txt I want to add 99999 to the begining of the all the file names without changing anything else in the file name in solaris 10.
16
votes
3answers
5k views

Flattening a nested directory

This is probably very simple, but I can't figure it out. I have a directory structure like this (dir2 is inside dir1): /dir1 /dir2 | --- file1 | --- file2 What is ...
1
vote
2answers
101 views

Is there some kind kind of hosts.additional file for Linux

If you have a list of servers all linking to each other by static addresses, is there some kind of hosts.additional you can use as some kind of file based DNS? ie The hosts file contains static ...
3
votes
1answer
173 views

How to create a folder which will change its contents’ ownership to what the folder has?

In a GNU/Linux OS there is no way to change ownership of a file until you are root. But what if I want to hide my system’s username e.g. before sending a file to someone, because some things like tar ...
2
votes
2answers
1k views

File delete versus overwrite and link at /proc/pid/fd

It is well known that UNIX systems won't actually delete a file on disk while the file is in use. So if a file is being accessed by process 1 and process 2 deletes the file using rm, process 1 ...
10
votes
4answers
1k views

Can a file that was originally sparse and expanded be made re-sparse

I know that copying or transferring what was originally a sparse file without using a utility that understands sparse files will cause the 'holes' to be filled out. Is there a method or utility to ...
3
votes
2answers
417 views

linux disk caching affects access times reported by stat?

On Ubuntu 12.04 I did the following stat a file cat the same file stat the file again cat the file again after 5 min stat the file The access time reported at 3. reflects the point at which 2. was ...
3
votes
2answers
426 views

Fastest way to get list of all file sizes

I'm trying to create a graph of the distribution of file sizes on my ext4 system. I'm trying to write a script to scrape this information from my computer somehow. I don't care where the files are ...
6
votes
3answers
1k views

Can't read a file although it's in my group and permissions for group read are set

I encounter a strange problem on a unix/linux machine: I'm member of a group, let's call it group A and a certain file (which has a different owner) belongs to group A as well. The permissions of ...
4
votes
1answer
397 views

How to rename all files and add image size to file name

I can`t make this work. I have a lot of images and i want to rename his name and append image size to name using exiv2 exiv2 pr * prints all info about file # exiv2 pr 9b523e5a002268fe5067a928 File ...
1
vote
5answers
977 views

Run a command on all the files in a directory tree and put the output into a variable

I want to run this bash command : #!/bin/bash rep="*" for f in `ls -R`$rep; do d='git log '$f'| wc -l' c=$d echo $c done how to excute a command git log myFile | wc -l from bash ? ps : this ...
4
votes
2answers
632 views

List files created on Sundays

How do I list/find all the files created on Sundays or Mondays? How do I use the date parameter to display them? Something like : ls -f date + %a or find -type f | date +%A or find -type f ...
3
votes
2answers
1k views

How can i redirect the output to a file when the program is build with ncurses library [duplicate]

Possible Duplicate: Removing control chars (including console codes / colours) from script output If we redirect output to file in this pattern top >> somefile.txt, we get lot of ...
22
votes
2answers
11k views

What happens when you delete a hard link?

If you do rm myFile where myFile is a hard link, what happens?
4
votes
2answers
294 views

Shredding everything: files/folders and corresponding filenames

Using find, it is easy to shred a directory's contents recursively (as discussed in this question). However, sometimes the filenames on their own carry sensitive information already. Is there a way to ...
1
vote
3answers
165 views

Deleting the starting 10 MB from a open file

I have a log file of size nearly 100 MB which is opened by some program and logging is continuously going on in that file. I want to delete the first 10MB from that file. Is there any way to do that ...