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

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5
votes
1answer
157 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 ...
4
votes
1answer
42 views

rsync doesn't preserve directory ownership even with -a

I use this rsync invocation to backup my home directory: rsync -aARrx --info= --force --delete --info=progress2 -F "$USER_HOME" "$BACKUP_MNTPOINT" rsync man page says that -a implies -g and -o ...
3
votes
1answer
131 views

Compose and pipe a gzipped tar archive in one go

I'm trying to come up with an effective way to create a gzipped archive of various system partitions on Android, piping everything out to stdout so as to be able to encrypt it as it comes across via ...
2
votes
1answer
44 views

How to count occurrences of all the words in all the files of a directory using grep? But with count incremented only once per word per file

I have already asked a similar question but people misunderstood what i was asking. I was asking how to generate a list of every word with a word count incremented only once per word per file. For ...
2
votes
1answer
35 views

Using `stat` to determine filled blocks

How can I find the number of filled block of a certain file, using the stat function? I have already found the command $(stat -c%b "$FILENAME"), which gives the number of allocated blocks but I don't ...
2
votes
1answer
250 views

allow user access via ssh to /var/www/

Context: I am creating a gitolite3 hook for a specific repo, which contains some logic and css foo of my website. so what essentailly happens is Content under /var/www/nginx/ looks like: ...
2
votes
1answer
110 views

Equivalent of memmove on files: copy a range of bytes to an earlier position

What is an equivalent of memmove on files with the same input and output file, which works with large files? dd works when I move the file contents towards the right, but not if I move the contents ...
2
votes
1answer
285 views

How to copy files *to* a camera?

I'd like to copy a firmware update file to my Canon 7D camera. After it was auto-mounted by thunar + thunar-volman + gvfs-gphoto2 I tried the following: $ cp eos7d-v205-win/7D000205.FIR ...
3
votes
0answers
103 views

How does fsnotify setting affect system performance?

Occasionally a software package I install complains that the default fsnotify setting is far too low for decent performance. Intellij IDEA or crashplan are two examples. They suggest using fsnotify ...
3
votes
0answers
67 views

How do I recursively set the date created attribute to the date modified attribute on NTFS-3G?

In my first question, I asked how to get the "Date created" field in NTFS-3G. Now, that I know I can get the "Date created", I have started adding files onto my NTFS-3G partition and would like to set ...
2
votes
0answers
21 views

Linux Mint desktop displays different files from ls command

Background I'm running Linux Mint 17 Cinnamon. After a botched attempt at migrating my data to a NAS, I restored my data from an external USB. Problem Statement After restoring from backup, all my ...
2
votes
0answers
85 views

Removing duplicate files but ignoring certain lines (e.g. embedded timestamp)

I have a bunch of gzipped text files. I am trying to remove duplicate files (using fdupes) but the problem is these files contain a line that has their timestamp in them, and the files are identical ...
2
votes
0answers
305 views

`crontab -e` sometimes fails with “Creation of temporary crontab file failed”

From time to time crontab -e fails on me on a Ubuntu box. It is the same for all users including the root and crontab -eu <user> under the root. Goes like this on a regular basis, a success here ...
2
votes
0answers
108 views

ls does not show a hidden file (OS X)

I am using lsof to view the list of open files. One such file that it displays open is : Google 3864 malaykeshav 46u REG 1,1 470455334 32578671 ...
2
votes
0answers
43 views

Image set compression

Is there a good open source (not exclusive to Linux) for compression of a set of similar images? I have thousands of documents scanned but I do not access them often. The documents are forms, with ...
2
votes
0answers
28 views

File viewer (not manager) with dual pane

I have multiple papers, in multiple directories. let us call the papers A, B, C, D... and I have to write reports often, where I have to answer questions like Q1, Q2, Q3, Q4... Now, what often ...
2
votes
0answers
179 views

Disk filename corruption

Using QNX unix filesystem. The files once written with good file names in a good directory and partition get corrupted in their filenames. Some of the files remain in good shape in the same ...
1
vote
0answers
20 views

How can I set a group policy to all access on all folders except one?

I am currently making a test environment where users will be going through a network administration course with different levels they must complete. Due to the nature of the course, we want to give ...
1
vote
0answers
24 views

Dynamic ~/.ssh/config

I'd like make my ~/.ssh/config file dynamically generated by a shell script (or anything else that prints to STDOUT). Is there a UNIX trick to make reading a file result in executing a command & ...
1
vote
0answers
35 views

trash and restore script - issue restoring

#!/bin/bash echo "Are you sure you want to move this file to the Recycle Bin?" "(Yes/No)" read ans case "$ans" in Yes) echo "$(readlink -f $1)" >> "$HOME/TrashLog" && mv "$1" ...
1
vote
0answers
27 views

Command that can find files that are not referenced by other files and then delete them

I was wondering if anyone knew how I could go about writing a grep command that recursively finds files that are not being referenced/used in a specific file and/or a directory of files, and then ...
1
vote
0answers
19 views

Configuring group access across a LAN

I have created a group called engineers on two VMs on the same 192.168.56.0/24 LAN. Is there any way the members from VM1 in engineers can view files created by engineers from VM2? I was thinking of ...
1
vote
0answers
43 views

Can Linux be configured to wait for USB storage to be reattached instead of returning I/O error

If a usb_storage device is physically detached from an Ubuntu machine while it is still mounted, any attempt to access the file system will produce an I/O error. Is there some way to configure Linux ...
1
vote
0answers
41 views

File path in audit log instead of inode number

When I do: echo "#TEST" >> /etc/passwd I get the following in audit logging: node=kayak.office.local type=SYSCALL msg=audit(1412687666.054:62033): arch=c000003e syscall=2 success=yes ...
1
vote
0answers
50 views

Files associated with Thunderbird - Security mechanism for local storage

I am trying to know how Thunderbird stores the mails, associated files in the local machine. I use Ubuntu 13.10 and Thunderbird 24.6.0. When I see in the local profile folder in the location in ...
1
vote
0answers
34 views

Copying files to a directory shared via ACL doesn't get default mask

I'm trying to setup a simple shared directory on an ext4 filesystem for a group of users to work on. Let's say i just need to give all permissions to all users belonging to the group "workgroup" to ...
1
vote
0answers
35 views

How can I unveal files on my external hard drive?

I copied a big folder (around 110 GB) from my (Mac 10.7.5) computer onto a hard drive (exFAT). It took quite some time and afterwards I even checked that the files were actually there. After more ...
1
vote
0answers
80 views

How do I make get-iplayer produce watchable quality without huge filesize?

Summary findings: I'm using get-iplayer v2.82. The files I produce on hard drive are all mp4. I've discovered the following (downloading same TV program in both cases): Using --modes=flashstd and ...
1
vote
0answers
71 views

Changing file time using touch

Im trying to change the file time of a m#merge the files to a temporary file. mergecap -w "${dir_dcn}"/merge_dcn.pcap "${FILES_dcn[@]}" touch -r "${FILES_dcn[14]}" dcn_file ls -l dcn_file ...
1
vote
0answers
783 views

NFSv4 which “domain” to put in idmapd.conf?

I'm using NFSv4 but suddenly when the NFS Server got rebooted, all the files on the Clients are having nobody ownerships after the Server is booted and started its whatever services again. Then I ...
1
vote
0answers
69 views

Create a fake read only device like file with incrond

I need to generate UUID with uuidgen (not through any function call, but external command, because processes which will read the file cannot call any APIs or external commands directly). My idea is ...
1
vote
0answers
95 views

Map invalid file paths to valid file paths

I am running a program on linux which access an invalid location, say: /home/area/file. I know the valid location is /home/area/something_else/file. The problem is the input file for this program is ...
1
vote
0answers
77 views

Which Unixes support cross-device filesystem links (in particular for rename)?

Just read the following on the FreeBSD man page for the rename syscall: ... [EXDEV] The link named by to and the file named by from are on different logical devices (file systems). Note that ...
1
vote
0answers
72 views

How can I make Krusader show real size of symlinked files?

In the "size" column in Krusader, there is a link's size noted, instead of the size of the actual file. This is the same as what ls -l shows (the full address of the target file, e.g. 64 B instead of ...
1
vote
0answers
2k views

How to edit context menu in Elementary OS' Files manager (pantheon-files)?

(I am new with Elementary OS and am not sure how to ask questions on their website. So this might be a cross-posting; I cannot find my question posted there.) I have seen here that the entries in the ...
1
vote
0answers
277 views

Apache created files and its permissions for CentOS 6.x

In short, I have an authenticated HTTP-POST that: posts a jpg image (created as 666 apache:www) into /directory1 (777 ftpuser:www) creates /directory2 (created as 666 apache:www) in a 777 ...
0
votes
0answers
4 views

QMMP player takes over file-manger association in Manjaro Linux

Sometimes Firefox gets associated with a different file manager than the one it is supposed to. But now it got associated with a media player instead of a file manger; a very odd behaviour in Manjaro ...
0
votes
0answers
26 views

How to compare file sizes in two directories?

I have copied some files to an SFTP-only server. I want to verify that all the files arrived intact. Since the server is SFTP-only, I cannot run e.g., an MD5sum on the remote host. I have the server ...
0
votes
0answers
18 views

Programatically capturing application inputs and outputs

I've been given a mess of applications that all touch various common files and data sources. (Retail IT environment so lots of generic sources of data that gets sliced and diced into various ways and ...
0
votes
0answers
66 views

get time of file in inotifywait tool

for this script: inotifywait -m /path -e create -e moved_to | while read path action file; do echo "The file '$file' appeared in directory '$path' via '$action'" # do something with the ...
0
votes
0answers
37 views

What are some preferred methods to efficiently edit files on a remote Unix server?

I'm looking for a more efficient GUI-based solution to edit root-owned and root-only writable files than using either nano or vim, both of which of course limit your cursor to navigate one character ...
0
votes
0answers
54 views

Storage Formats for Flat File DB

Currently I use a flat file database with find -type f -ls to store information for about 400GB of files. I'd like to store also the md5sum/sha[1|256]sum of the files. Because the files are often ...
0
votes
0answers
137 views

How to mount multiple iSCSI images too loop

I have to mount iscsi images to loop. Yesterday someone with a similar problem asked that already. The difference is, my iscsi image is splitted into 5 parts. ls -la insgesamt 4718592004 -rw-rw-rw- ...
0
votes
0answers
176 views

Strange issue with xml_split in Linux

I am using the code xml_split from https://metacpan.org/pod/distribution/XML-Twig/tools/xml_split/xml_split to split a huge XML file. I am facing a strange issue with this. First, I tried the ...
0
votes
0answers
144 views

Editing metadata with bash

I have a bunch of photos(jpeg, bmp, png) that I have arranged in such a manner that the metadata is in html form in a separate file. I would like create some script to read this html file and edit ...
0
votes
0answers
74 views

Unable to make file system writtable no matter what

I have a flash card SanDisk of a camera which I plug in into my computer: $ lsblk mmcblk0 179:0 0 3.7G 1 disk └─mmcblk0p1 179:1 0 3.7G 1 part $ mount /dev/mmcblk0p1 on ...
0
votes
0answers
22 views

Net-SNMP Application

I don't know if this is the right place to ask this question, but, does anyone knows about Net-SNMP. Is it possible to not truncate the log file whenever snmptrapd is restarted? The logs are being ...
0
votes
0answers
348 views

ETL testing - Unix Commands

As part of etl testing I need to find record count for each different record. Currently we are having some 8 different record types in the flat file. Is there any unix command to find the record ...
0
votes
0answers
62 views

Issues with sharing partitions using NFS

We have 3 servers: Server1, Server2 and Server3, all in the same network. On Server2 I'm sharing a partition, say /part1, to Server 3 using NFS. Here's the /etc/exports on Server2: /part1 Server3(rw) ...
0
votes
0answers
105 views

Real copy to Android device

When i copy files to the Android phone, they are copied to some cache, but they aren't written. I don't like it, because i don't know what is done. I've tried these methods: copying via thunar file ...