File name is a name used to identify a file uniquely on given file system.

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8
votes
1answer
214 views

Can I truncate long file names in ls listing

I have a number of files with very long names. Please, is there a way to use ls -C and truncate the file names to get more columns for an overall view? Or is there a better way to get a compact ...
2
votes
2answers
288 views

Extracting parts of filename

I'm trying to use a part of the file name to be inserted into a new file created using the script. For eg: dcn_2014_01_31_14_17_45_505.pcap and dcn_2014_01_31_14_32_27_656.pcap should give ...
2
votes
2answers
241 views

How do I check that a filename conforms to a pattern?

I'm tasked with writing a shell script which checks that a filename conforms to a specific pattern and I'm not sure how to go about it. The filename should follow a pattern which looks like: ...
11
votes
2answers
2k views

What is the difference between “du -sh *” and “du -sh ./*”?

The title says it all. What's the difference between those 2 commands? NOTE: I'm more interested in the * and ./* part.
1
vote
2answers
90 views

Keeping the latest two version and delete the remaining

I have a list of files (say xsl format below) in one directory. I want to keep the last two version of all files. (I can delete the remaing files) {A}_1.0.xsl {A}_2.0.xsl {A}_3.0.xsl {A}_4.1.xsl ...
9
votes
3answers
1k views

identify files with non-ASCII or non-printable characters in file name

In a directory size 80GB with approx 700,000 files, there are some file names with non-English characters in the file name. Other than trawling through the file list laboriously is there: An easy ...
0
votes
1answer
47 views

Files with “core” name

Can I be sure that files with name core on the system are core dump files? Or how can I be certain about some files that they are core dumps to delete them? (best practices are welcome)
12
votes
2answers
394 views

Shell filename pattern that expands to dot files but not to `..`?

Recently I had a little mishap caused by a shell pattern that expanded in an unexpected way. I wanted to change the owner of a bunch of dot files in the /root directory, so I did chown -R root .* ...
5
votes
2answers
298 views

How does GLOBIGNORE work?

According to bash's manual page: GLOBIGNORE A colon-separated list of patterns defining the set of filenames to be ignored by pathname expansion. If a filename matched by a ...
0
votes
3answers
344 views

Identify if files or directories are hidden

I am trying to write a bash script that prints out all files (including hidden) in a directory recursively and records the number of files, hidden files, hidden directories and directories. This is ...
8
votes
3answers
118 views

POSIX compliant way to work with a list of filenames possibly with whitespace

I have seen Bash scripting guides suggesting the use of array for working with filenames containing whitespace. DashAsBinSh however suggests that arrays are not portable so I am looking for a POSIX ...
6
votes
3answers
143 views

How can I determine a file's conventional filename extension

The file command is good at determining file types for my needs. Is there any way to map those results to conventional filename extensions?
2
votes
1answer
260 views

Mouse shortcut to copy the path to a file in the Gnome file manager

Is there a Linux equivalent of the Windows Shift+Right-click sequence? I use this a lot on files and directories to get the 'hidden' "Copy as path" option in the pop-up menu. It saves a lot of ...
0
votes
0answers
91 views

Shell Script : Check for all the source files in different paths

This is the naming convention of the file. <yearmonthdate>_<sourcesystem>_<totalnoofpartsof file>_<subject area>_<part number>.dat (or .dat.gz) First part is Date, ...
3
votes
6answers
247 views

How to delete a NTFS filesystem file whose name contains “:”?

I backup some of my Linux files in a NTFS removable hard disk several days ago, this time I need to remove those files. But I find it difficult since: On windows, it complains that "Could not find ...
0
votes
1answer
210 views

Rename multiple files removing last characters and renumbering

I have a photo directory with hundreds of files named in the format: 2013-08-02 19.21.27.jpg I wish to keep the first 10 characters (date) and append "-001", etc. being consecutive for each date. ...
2
votes
2answers
58 views

Proper escape sequence for a non-standard file name [duplicate]

I'm trying to remove a file I made by mistake using --exclude with tar. I ended up making a tar file named --exclude=*.tar Now I want to delete it but I'd like to rename it first. How do I escape it ...
3
votes
1answer
152 views

How can there be a directory named `~`?

I was trying to test out this buggy/new tool to see how it works, and it prompted me to choose a directory to use for stuff I am doing. From the directory ~/Code/indep, I typed in ...
5
votes
1answer
210 views

Variable in sed

I have a file that contains filenames with absolute path. In the middle of that path, is a variable directory, whenever I hard code the variable part, it works fine, but when I replace it with the ...
2
votes
1answer
16 views

zsh: how to get file expansion working in print statement

I have the following code which prints recursively all files inside /usr/local/include: % files=(/usr/local/include/**/*(^/)) % print -l $files Is it possible to get rid of the temporary variable? ...
3
votes
4answers
349 views

How to prepare files for rsync on a case insensitive filesystem?

I am transferring a large number of files on a HFS+ filesystem. The files are currently on ext2 partitions. I have conflicts due to case insensitivity of the target partition (HFS+). I want to ...
1
vote
1answer
286 views

rename multiple files recursively and remove multiple characters such as ? : or newline from names

I have seen a few similar questions, but nothing that shows how to remove any of a set of special characters from all file names recursively. I want to keep uppercase and lowercase letters, numbers ...
0
votes
2answers
212 views

Making md5sum understand file names with spaces

I need to use md5sum in Python by using pipe to calculate checksum for a bunch of .mp3 files... is there a command which ignore whitespaces in filenames on the command line of md5sum program? For ...
3
votes
1answer
86 views

Test for link with trailing slash?

I created in /tmp/test/ mkdir somedir ln -s somedir/ somelink I want to loop through only directories: for file in */ ; do if [[ -d "$file" && ! -L "$file" ]]; then echo "$file is a ...
2
votes
1answer
179 views

Merging folders with practically the same name but different casing

When digging around in the advanced settings in Dropbox I lost a folder. I only discovered this about a month later. I managed to get this folder back from Dropbox however the file structure of the ...
22
votes
3answers
569 views

shellcheck is advising not to use basename: why?

I am trying out shellcheck. I have something like that basename "${OPENSSL}" and I get the following suggestion Use parameter expansion instead, such as ${var##*/}. From the practical point of ...
1
vote
3answers
119 views

splitting the string in bash script

I am new to bash script. I am taking some input from user and checking details about that. Example: $HOME/Documents/test/one.txt I take the above string as an input and want to retrieve one.txt, I ...
1
vote
3answers
389 views

fsck -cc /dev/sdb1 gives this result. Is everything okay?

root@host [/]# fsck -cc /dev/sdb1 fsck from util-linux-ng 2.17.2 e2fsck 1.41.12 (17-May-2010) Checking for bad blocks (non-destructive read-write test) Testing with random pattern: done /dev/sdb1: ...
7
votes
1answer
202 views

Why do *nix filesystems support file names with newlines? [duplicate]

According to this page: File names in Linux can contain any characters other than (1) a forward slash ( / ), which is reserved for use as the name of the root directory (i.e., the directory that ...
2
votes
1answer
80 views

Symlink with @ symbol?

I found that there is a symlink generated by ruby which has a @ sign at the path: default -> /Users/MyUserName/.rvm/rubies/ruby-2.0.0-p247@gemset The folder ...
0
votes
1answer
1k views

Why does scp say “No such file”?

I have a bash script that uses scp to copy a file from my machine to another. The script keeps on exiting after I enter the SSH password with the error: <filename>: No such file or directory ...
1
vote
5answers
2k views

Find files by the length of filename

I want to find all files by length of the file names. For example if I want to find files of length 1, such as a.go, b.go I put: grep '.\{1\}' file But this does not work. What command can I use ...
1
vote
2answers
401 views

Way to write new filename on wildcard input?

I have some experience with Inix terminals from science internships I've been part of, mainly using a few utilities like grep, awk, and sed but there is one thing I've been trying to figure out for a ...
3
votes
3answers
285 views

Command for taking a screenshot to a new file

I want to configure a global hotkey to take a new screenshot and save it, say, somewhere inside my home folder. I can take a screenshot with ImageMagick with this command: import screenshot.jpg ...
7
votes
3answers
320 views

Select unicode filename in Bash

Ok; suppose I'm in Bash and I have several files in a folder. Several of them are named file☠☡☢☣.txt, where ☠☡☢☣ starts with crazy untypable unicode characters. How would I refer to one of them? ...
3
votes
2answers
55 views

Is there a way to condense ../.. parts of a path out programatically?

Say for example I have these types of paths to files in a script: /path/to/some/file/../../file1.txt Is there a command I can call such as readlink that will convert this path to its actual ...
7
votes
3answers
477 views

Generate new name for moved file to prevent overwriting?

How can I generate a new name for a file if there's an existing file With that same name? In a Desktop environment a new name is generated my appending a number to the end of the file name, but how ...
1
vote
2answers
390 views

Why are filenames that start with a dot hidden? Can I hide files without using a dot as their first character?

Initially I thought it was a coincidence, but now I see there's even a tag for it: all hidden file names start with a dot. Is this a convention? Why was it chosen? Can it be changed? Or in other words ...
1
vote
1answer
240 views

How can I custom rename podcasts after downloading them with gPodder?

I'm using Arch Linux. To download podcasts, I use gPodder 3. To listen to my podcasts, I'm using Rockbox on my iPod Classic. The thing is, the podcasts don't get sorted nicely on my iPod: ...
3
votes
1answer
305 views

How can I sort a list of file names by some substring of the name?

I have a number of files with names like: beginning_num1_734_num2_1.363e+12_num3_800.pdf beginning_num1_735_num2_7.453e+13_num3_800.pdf beginning_num1_1007_num2_9.453e+12_num3_1200.pdf I'd like to ...
0
votes
1answer
58 views

Get the most recent backup files [duplicate]

I'm googling for this, but the terms are so generic I'm getting way too many false positives, so what the hey, I'll ask here. I'm sure there's a simple answer but I don't generally script in *nix. ...
2
votes
1answer
230 views

Given a mime-type get the corresponding file extension

I want to download I file using curl to a temporary directory with the appropriate extension. Currently I do something like this: tmp="$(mktemp -t 'curl')" curl -o "$tmp" ...
3
votes
3answers
379 views

How to find file/directory names that are the same, but with different capitalization/case?

How can I list the file/directory names in a directory recursively that are the same, but with different capitalization/case? ex.: INPUT (not the ls command, the directories): [user@localhost ...
3
votes
1answer
148 views

How to create a file with the name specified in ASCII encoding?

I want to create a file that is called ascii 007, which is the bell symbol, which is not printable. I tried nano $'\007', but that just created a file called ?; cat ? print the test content, that I ...
2
votes
1answer
70 views

find doesn't return expected files

I'm doing a search for files that contain ".anki" in their file name. root@t500:/home/some1# find / -name .anki /home/some1/.anki But there are other files in my home folder that contain .anki: ...
3
votes
1answer
7k views

cp: cannot stat `/vol/examples/tutorial/science.txt': No such file or directory

I tried a command cp /vol/examples/tutorial/science.txt . and I get the error - cp: cannot stat `/vol/examples/tutorial/science.txt': No such file or directory I don't understand why this is ...
6
votes
3answers
350 views

How do you create a file with an empty name?

I don't know how, but I created a file with an empty file name, I doubt there was a whitespace there (I'll explain why at the end): chaouche@karabeela /mnt/ubuntu/storage $ ls total 352K drwx------ ...
1
vote
1answer
203 views

Trouble with mv and adding the date

I want to be able to move $oldfile to my backup folder and add the date to the file name. So I tried this... mv $oldfile /home/u0146121/backupfiles/$oldfile_$(date +%F-%T) This just gives me this ...
1
vote
1answer
2k views

Adding a time stamp when moving a file in bash [duplicate]

#!/bin/bash while read server <&3; do #read server names into the while loop if [[ ! $server =~ [^[:space:]] ]] ; then #empty line exception continue fi echo "Connecting to - ...
1
vote
1answer
801 views

Executable symbolic link file not working

On Mac OSX, I am having trouble with a pretty simple thing. My symbolic link doesn't want to execute. Can you help me spot the trouble? Thanks! $ echo $PATH ...