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

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5
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3answers
6k views

create md5 hash from a recursive file listing when some paths have spaces

I need to create an md5 hash of every directory and file inside of one main directory. The only thing that is keeping me from success is figuring out a way around files with a space in the path. I am ...
19
votes
3answers
2k views

Newlines in filenames

I understand and accept the premise that defensive1 shell scripting is both prudent and, in the longer term, more sustainable. Many of the answers to text processing questions here follow this ...
11
votes
2answers
7k views

Why can't I have a folder and a file with the same name?

I've never had this problem before, but for some reason, I can't rename my folder to packages/. This is the structure: root - packages_old/ - packages When I try to rename the folder with ...
4
votes
4answers
785 views

Find files without a number

I am trying to write a simple script that will iterate through all drives except sda. Right now I have this for i in $(find /dev/ -name "sd*" ! -name "sda*") do echo $i done However this ...
2
votes
2answers
546 views

Script to prepend the files path to a file recursively

I work as a grader and files submitted to me end up in a folder named with the student's name which is itself inside a specific folder on my linux share. Currently I go through each source file and ...
6
votes
2answers
8k views

special character in filename (\#033OA)

I've got a slight problem with a very stubborn error during an rsync. It's caused by a file with a special character in its filename. There's been others but I could sort that out by doing some ...
2
votes
2answers
6k views

How can I specify that curl (via command line) overwrites a file if it already exists?

I'm using curl in this syntax: curl -o myfile.jpg http://mysite.com/myfile.jpg If I run this command twice, I get two files: myfile.jpg myfile-1.jpg How can I tell CURL that I want it to ...
3
votes
2answers
201 views

filename with no spaces from two command lines

I am running two Linux commands and I want to put the resulting values together in a filename with no spaces and a dot separating the two values. So far, I've got this: pid=`sudo dmidecode -s ...
4
votes
2answers
14k views

Bash shell script to locate and remove substring within a filename

I am trying to write a bash shell script in Mac OS X 10.6 (which is called by an Automator Action) to rename TV show DVD rips that I have named badly over the years. I want to remove part of the text ...
7
votes
1answer
2k views

Best way to remove file extension from a string?

So, I'm using a script I've made to convert videos to the webm format. A certain program calls the script, sending %f which is the full, absolute file name of the video, like this: converter.sh %f ...
6
votes
2answers
2k views

file descriptor vs. file name

I was wondering what differences and relations are between file descriptors and file names. Are they all used to access files? If yes, in the same way? For example, /dev/fd/0, /dev/stdin, and ...
4
votes
3answers
4k views

How do I move some but not all files from one directory to another?

I need to move my files from one directory to other. But there is some issues. My file name pattern is like: apple.0, apple.<n>, n -> {0,1,2,3 ...~ } so mv apple.* will not work, because ...
9
votes
3answers
3k views

Is it possible to nest a 'find -exec' within another 'find -exec'?

Something like the following is what I what I'm after, but my code doesn't work, no matter how I escape {} and + ; find ./ -maxdepth 1 -type d -name '.*' -exec \ find {} -maxdepth 1 -type f ...
1
vote
1answer
1k views

Do special characters in paths pose a problem when mounting network shares?

I am trying to create a permanant access point to a windows share from a CentOS 5.5 machine. I edited the /etc/fstab file to have the following entry: //travellot/ArcGIS Setup's/9.3.1 ...
7
votes
4answers
660 views

How can I find a file whose name includes a given string, such as “abcde”?

Within a set of directories, how do I find a file whose name includes a given string, such as "abcde"?
4
votes
0answers
283 views

Why is there a '.d' in 'init.d'? [duplicate]

Possible Duplicate: What does the .d stand for in directory names? Consider that we have (on many sytems) init.d that contains executable scripts and symbolic links for run levels, sysctl.d ...
5
votes
1answer
1k views

shopt -s nocaseglob is not working on Ubuntu

Case insensitive file name globbing is not working in bash on Ubuntu 11.04 64bit. The shell options specified in .bashrc are as follows: shopt -s nocaseglob shopt -s nocasematch shopt also shows ...
22
votes
7answers
67k views

How to list files without directories, and filter by name (ls options)

I have a directory called uploads. It contains a bunch of files, plus a few subdirectories which in turn contain files. Is there a way I can (in one step) do the following: List ONLY the files in ...
10
votes
2answers
4k views

Several questions about file-system character encoding on linux

Due to a lot of file exchange works between Windows (GBK encoding) and Linux (UTF-8 encoding), it will encounter character encoding issues easily, such as: zip/tar files whose name contains chinese ...
11
votes
3answers
6k views

File and directory naming conventions

I want to refactor the files and directories on my system. However I am not sure what is best practice. After reading this question and it's answers I assume the most important part is to be ...
0
votes
0answers
41 views

How to change ALL the postfixes of files in a single directory, single command [duplicate]

Possible Duplicate: How to clean up file extensions? have a directory full of files ending with .JPG I need to change them all to .jpg How?
3
votes
6answers
2k views

finding the absolute directory

Here is the scenario: foo/ > data/ > stuff/ > scripts/ -> /.../generic/scripts When calling foo/scripts/bar.sh from any location (other folder or inside the folder), I would like to be ...
3
votes
1answer
392 views

rm command returns a message [1] 12345 What does this mean?

I'm trying to remove a file and I keep getting a message similar to: [1] 12345 and nothing happens, I run a directory search (dir) and the file remains and I get a stopped message
5
votes
5answers
650 views

How do I remove a file I accidentally created named $file?

I was working on a shell script and I accidentally created a file with the variable as its name. Now I have $file in my ls output, and cannot remove it. What can I do?
3
votes
2answers
208 views

returning strings corresponding to shell glob matching

Suppose I have a subdirectory called sub. Then I want to operate on all files in that directory with the extension "txt". I want something like for f in sub/*.txt do enscript -b "" -o {$f ...
5
votes
2answers
81 views

Making a duplicate of a path in Unix

My Unix vocabulary is failing me. I have 5 billion images in /foo/live/images. For the purposes of developing a new version of the app I'd like to make /foo/dev/images into a working path without ...
4
votes
3answers
9k views

How to find files in subdirs and sort them by filename in a single command?

Result of a normal find using find . ! -path "./build*" -name "*.txt": ./tool/001-sub.txt ./tool/000-main.txt ./zo/001-int.txt ./zo/id/002-and.txt ./as/002-mod.txt and when sorted with sort -n: ...
2
votes
2answers
265 views

Should all plain text files have some sort of suffix (e.g. *.txt, *.conf) [closed]

I create many notes in plain text files, but after a while the .txt suffix I put at the end of them seems to be unnecessary typing and visual noise. Is appending .txt to plain text files a strongly ...
40
votes
4answers
5k views

unix, difference between path starting with '/' and '//'

In unix/linux, any number of consecutive forwardslashes in a path is generally equivalent to a single forwardslash. eg. $ cd /home/shum $ pwd /home/shum $ cd /home//shum $ pwd /home/shum $ cd ...
8
votes
3answers
12k views

How to add unique id to file name in cron job?

My cronjob looks like this: 5 3 * * * mysqldump -u root test > /srv/backup/mysql_daily.dump How can I make filename unique for every time when cronjob writes mysql_daily.dump?
10
votes
1answer
3k views

rsync: colon in file names

Other than by renaming the files first, how can I rsync files that may have colons in their names?
4
votes
3answers
355 views

Open files in emacs by filename instead of complete path

Assume I have a bunch of directories and can guarantee that no two directories have a common filename (i.e. if foo/bar exists, then bar doesn't exist in any of the other directories). How can I setup ...
4
votes
2answers
641 views

Is there a user interface in Emacs allowing one to “grab” the buffer's filename conveniently?

It happens quite often that I want to use the path of the file opened in a certain buffer in Emacs (either the full path or the basename) in another place (a buffer or a different X program, say, a ...
65
votes
10answers
79k views

Looping through files with spaces in the names?

I wrote the following script to diff the outputs of two directores with all the same files in them as such: #!/bin/bash for file in `find . -name "*.csv"` do echo "file = $file"; diff ...
36
votes
10answers
18k views

Unix file naming convention

I was wondering what is the naming convention for files in Unix? I am not sure about this, but I think there is perhaps a universal naming convention that one should follow? For example, I want to ...
5
votes
3answers
498 views

How do I delete a file named “°” in bash

I've accidentally created a file named °. Now I'm having trouble deleting it with bash. [/opt/etc/sudoers.d] # ls -l -r--r----- 1 admin administ 21 Feb 3 23:54 010-root -rw-r--r-- 1 ...
8
votes
1answer
1k views

What does 'uni' mean in unistd.h

What does uni mean in unistd.h Does it mean unix? or universal? What is it?
6
votes
1answer
548 views

Why do some symbolic links affect program behavior?

One thing that has been puzzling me for some time is this: % which halt /sbin/halt % file /sbin/halt /sbin/halt: symbolic link to `reboot' However, executing sudo halt does, of course, not reboot ...
12
votes
1answer
3k views

What does *~ mean?

At the end of a makefile I saw rm -f *~ *.class I understand the *.class, but what's *~?
1
vote
3answers
2k views

How can I randomize file names in a given directory?

Ok, this may sound like an odd request but it really has a good purpose! I have a Panasonic Plasma TV with an SD card slot, via which I can display a slideshow of JPEG photos. This is useful for ...
17
votes
3answers
9k views

bulk rename (or correctly display) files with special characters

I have a bunch of directories and subdirectories that contain files with special characters, like this file: robbie@phil:~$ ls test�sktest.txt test?sktest.txt Find reveals an escape sequence: ...
6
votes
1answer
3k views

Recursively compare directory contents by name, ignoring file extensions

I have a directory containing about 7,000 music files. I used lame to recursively re-encode all files in it to a separate directory, outputting all files with the same relative path and file name. ...
8
votes
3answers
502 views

Why do tar and gzip files usually have a file extension?

File extensions are not necessary on unices, still every tarred, gzipped or bzipped file I encounter has a file extension like .tar, .tar.gz or .tgz. Is there any special reason for that or is that ...
1
vote
1answer
280 views

How can I grep through files whose name begins with `-`? [duplicate]

I've tried this. grep -r thanks * slave-iv grep: invalid option -- '@' Usage: grep [OPTION]... PATTERN [FILE]... Try `grep --help' for more information. Here's ...
27
votes
3answers
20k views

What charset encoding is used for filenames and paths on Linux?

Does it depend on what file system I use? For example, ext2/ext3/ext4 but also what happens when I insert one of those "joliet" CD-ROMs with ISO 9660? I've heard that POSIX contains some sort of spec ...
70
votes
6answers
12k views

How does Linux handle multiple consecutive path separators (/home////username///file)?

I'm working on a python script that passes file locations to an scp subprocess. That's all fine, but I'm in a situation where I may end up concatenating a path with a filename such that there's a ...
19
votes
8answers
25k views

Grabbing the extension in a file name

How do I get the file extension from bash? Here's what I tried: filename=`basename $filepath` fileext=${filename##*.} By doing that I can get extension of bz2 from the path /dir/subdir/file.bz2, ...
8
votes
2answers
1k views

the slash (/) after a directory name on shell commands

I have a little question here. If I have two files, say filea and fileb, mv filea fileb would delete fileb rename filea to fileb Then if I have two directories, say dira and dirb, mv dira dirb ...
17
votes
6answers
1k views

Is there a terminal app that allows filenames to be clickable?

Is there a terminal emulator (extension or app) that does link resolution for local paths? In particular when I see things like: ...