The ls command lists the contents of a directory.

learn more… | top users | synonyms

2
votes
1answer
500 views

What file type categories do colors in the terminal represent in various distros (by default)?

I'm discovering new file type categories (if one can call different colors in the terminal in such a manner) almost on a daily basis. Still, I haven't found an exhaustive list of all recognized file ...
2
votes
3answers
1k views

Command substitution in for loop not working

I want to keep all files not ending with .bat I tried for f in $(ls | egrep -v .bat); do echo $f; done and for f in $(eval ls | egrep -v .bat); do echo $f; done But both approaches yield the ...
28
votes
6answers
40k views

Sorting files according to size recursively

how to scan a folder recursively and find the largest files in the folder, and sort them by size. I have tried using ls -R -S but it tends to list the directories as well I need to scan the folders ...
3
votes
2answers
24k views

How to sort results from ls command by modification date (directories first)?

I can fire ls -lrt to get files and folders sorted by modification date, but this does not separate directories from files. I want ls to show me first directories by modification date and then ...
4
votes
3answers
2k views

How can a group own a file?

Whe I do ls -l, two of the fields are username of the owner and name of the owning group. The username is clear - I created the file, it is mine. However the group entry confuses me. My user is a ...
3
votes
2answers
991 views

How to set what field names are displayed in listings?

When I execute a command in Ubuntu, which results in a listing, I get results without the field names. Example is ls -l or ps l. I am not very experienced and always need to go digging through man ...
2
votes
5answers
362 views

List a directory but only if it contains sub-directories?

In Unix, is it possible to use one command ONLY to list directories if they contain a sub-directory? For example, I would like to list the directory name if it contains a sub-directory called ...
3
votes
1answer
657 views

How to disable flashing file names in rlogin

I have a strange problem with my rhel 6.4 system. If I do a rlogin to any of my machines, all the files in the remore machine will be flashing and it is so annoying. Can somebody please tell me how ...
6
votes
1answer
5k views

Using regex in ls and mv

I have a directory structure like this ├── UK │   ├── BuyBand_go_UK.png │   ├── BuyBand_go_UK.svg │   ├── BuyBand_K.png │   ├── BuyBand_K.svg │   ├── BuyBago_UK.png │   ├── BuyBago_UK.svg │   ├── ...
1
vote
4answers
3k views

Tail -f the most recent log file

In a few spots I got this to work ls -rt /path/to/log/file/ | tail -1 | xargs tail -f But I can't figure out why it won't always work (This is quick fix until I get the log rolling fixed here)
1
vote
1answer
938 views

The result of echo * and echo .*

Thereotically, the result of command echo * should be "Any file in the current directory". Should it include the dotfile? Similarly, Should the result of ls * include the dotfile?
1
vote
2answers
3k views

Cheapest way to find the oldest file (recursively) from a directory under heavy load

What is the least expensive way to find the oldest file in a directory, including all directories underneath. Assume directory is backed by SAN and under heavy load. There is concern that "ls" could ...
2
votes
2answers
442 views

ls should display contents of flat directory structure in columns

I've got the a flat directory structure like this. ├── kanban │   ├── 1_backlog │   ├── 2_analyze │   ├── 3_doing │   ├── 4_test │   ├── 5_approval │   └── 6_done Each directory contains text ...
1
vote
2answers
428 views

MacOsx - Shell - list all .php files and their octal permissions, inside a specifc folder

is it possible to list all the ".php" files located into a direcotry and their octal permissions? I would like to list them like this: 775 /folder/file.php 644 /folder/asd/file2.php etc...
2
votes
1answer
4k views

How to “mute” ls command?

Suppose I do a recursive ls $ ls -R on the root directory. I get a lot of messages like these - ls: cannot open directory ./var/lib/sendmail: Permission denied ls: cannot open directory ...
14
votes
4answers
17k views

View permission / owner of full directory tree

I remember doing someting like "XXX /home/user/dir/child/file" and it returned the owner and/or permission of: /home /home/user /home/user/dir /home/user/child /home/user/child/file But I don't ...
23
votes
1answer
7k views

What do the symbols displayed by ls -F mean?

I noticed that if I run ls -F on a directory, some of the entries have a * or a @ after them. spuder@ubuntu:~$ ls -F /sbin acpi_available* getpcaps* lvmconf* ntfscp* ...
1
vote
4answers
6k views

List only files in a directory and show the inode number

How can I list all files but not directories in a given directory and show the inode-numbers. Something like ls -li | grep ^- does not work since the inode number is shown in the beginning of the ...
4
votes
3answers
15k views

What does `l` mean in an `ls` listing?

When I run ls -adl .* in one of my directories, I get a file that has this listing: lrwxrwxrwx 1 user group 43 Jul 3 16:25 .#filename.py -> person@computer.edu.4018:1372874769 The filename ...
0
votes
2answers
420 views

meaning of capital S in long ls output [duplicate]

What does this long listing mean? $> ls -l developer.haml -rw-rwSr-- 1 humon apache ...... I know what a usual listing means and I know all about what it means to be read 'r', write 'w', and ...
0
votes
3answers
223 views

How to delete directory ' :q!'? [duplicate]

Accidentally, i have got this directory created in my home, drwxr-xr-x 2 ubuntu ubuntu 4.0K 2012-09-06 07:27 :q!/ I want to remove this somehow. I have tried using escape characters in double ...
0
votes
1answer
163 views

Moving folders used wrong syntax and lost them

I thought I was being smart trying to move a folder to one level up by going: mv folder .newfolder and neglecting to even put: mv folder .newfolder/folder and anyway it didn't put up an error but ...
2
votes
2answers
565 views

Directories are listed twice

I have something odd. I creates some directories using a very simple script : ... create all directories ( running under a user that has the correct rights ) e.g : mkdir -p ...
0
votes
1answer
202 views

wc - setting a terminating character

I've got that far: wc --files0-from=FILE lets one get the word count of a list of files. Each entry in this list mus be terminated with an ASCII NUL character. Question: A way to set a terminating ...
6
votes
2answers
9k views

syntax of ls --hide= and ls --ignore=

ls --hide and ls --ignore provides the possibility leave out files defined through regular expressions set after the --ignore= part. The latter makes sure that this option isn't turned off via -a, -A. ...
3
votes
5answers
8k views

ls command - define number of columns

Is there a way to define the number of columns in ls output? I got this far: ls -C sorts in columns and ls -1 produces one column. --tabsize = option to produce two columns resulted in what looks ...
7
votes
2answers
2k views

Find/ls caching

It seems as though the first time I run find or ls on a directory, it takes a while to work. But, each time thereafter, it is fast, as though a list of the directory's contents has been cached or ...
3
votes
1answer
699 views

ls gives me different sort orders during a cron job

I have a cron job that, among other things, does a recursive ls of a directory into a file. This gets compared to another file that I've created that, supposedly, contains an identical listing of the ...
5
votes
2answers
3k views

Excluding a specific directory using a recursive 'ls'

I've been using the following command to list the most recently updated files (recursively) within a specific directory and order by modification time: $ stat --printf="%y %n\n" $(ls -tr $(find * ...
7
votes
2answers
1k views

Sort files by modification time

I've seen many questions and answers here using a construction along the lines of list_dir=`ls -t /path/to/dir/` for i in $list_dir; do or ls -t | while read i; do Now, I know that you shouldn't ...
18
votes
1answer
5k views

Why are reboot, shutdown and poweroff symlinks to systemctl?

In Arch Linux, if I do ls -l in /sbin, I can see that reboot, shutdown and poweroff are all symlinks to /usr/bin/systemctl. But issuing reboot, shutdown and systemctl commands obviously does not all ...
3
votes
2answers
7k views

Linux listing files between two date without touch command

I need a command which will list the files between given date and time (YYYYMMDDHHMMSS - format) in to a text file. I don want to use touch command as its creating permission issue. I am new to this ...
9
votes
3answers
12k views

How can I display octal notation of permissions with ls - and can octal represent all permissions? [duplicate]

After looking at the man page for ls on my system and searching Google, I see there IS a hack of way to use awk or perl to show octal permissions when using ls, but with bash is there anything more ...
3
votes
1answer
63 views

Why aren't CD image files listed when mounted in current directory?

When mounting a disk image in the current directory using : sudo mount -o loop -t iso9660 wall.iso ./ Listing files in current directory only returns wall.iso . To view the actual files on the disk ...
4
votes
1answer
4k views

ACL, ls, “permission denied” and a lot of questionmarks

I have two users, Alice and Bob. Bob should be allowed to list, ls, Alice's home directory. Alice also has a file in her home directory that Bob should also be allowed to read. I run these commands ...
2
votes
1answer
137 views

cd and ls in the same call [duplicate]

I often have to cd to a directory and ls to see the directory listing. Can it be done with one shot, so that I can add to .bashrc as alias. I searched on Google, there were some answers, but ...
38
votes
7answers
7k views

why does ls -d also list files, and where is it documented?

when specifying ls --directory a* it should list only directories starting with a* BUT it lists files AND directories starting with a Questions: where might I find some documentation on this, ...
4
votes
3answers
4k views

Something's special about /dev/fd/3

I've been trying to learn about file descriptors. When I type "ls -l /dev/fd/" I get lrwx------ 1 me users 64 May 2 16:02 0 -> /dev/pts/5 l-wx------ 1 me users 64 May 2 16:02 1 -> ...
4
votes
4answers
759 views

linux + how to ignore (filter) file with space

Sometimes a file name is created from a couple of names and space between each name as the following: $ touch "A B C" $ ls A B C <-- one file but has three words ! ...
16
votes
3answers
12k views

List all files with the same inode number?

Lets say, when I do ls -li inside a directory, I get this: 12353538 -rw-r--r-- 6 me me 1650 2013-01-10 16:33 fun.txt As the output shows, the file fun.txt has 6 hard links; and the inode number is ...
3
votes
6answers
4k views

sort ls output by users

On Linux, is there a way to sort ls output by users? What I try to achieve is something like this: user_a   file1 user_a   file2 user_b   another_file user_c   this_file user_c ...
1
vote
1answer
932 views

ls -ld /dir, Solaris [duplicate]

Always when I run ls -ld /dir the output give me the size = 512 even if there are files in it or not. but when I run du -sh the output give me the actual size of the directory including its content.
4
votes
1answer
2k views

Pass colors from ls through pipe to awk 'print' statement

This is a follow-up to my question from yesterday, Show sum of file sizes in directory listing. Thanks to Zero Piraeus and a point in the right direction by Mauritz Hansen, I now have function ...
21
votes
11answers
76k views

Show sum of file sizes in directory listing

The Windows dir directory listing command has a line at the end showing the total amount of space taken up by the files listed. For example, dir *.exe shows all the .exe files in the current ...
2
votes
2answers
324 views

Can I `ls` all files in a directory from “1”, “2”,…,“9”, “10”, “11”, …, “20”, “21”, …?

I have a directory with files named "1", "2",...,"9", "10", "11", ..., "20", "21", ... inside. Can I list them in the order of "1", "2",...,"9", "10", "11", ..., "20", "21", ...? I have tried ls ...
2
votes
1answer
238 views

Which option of ls should be used for understanding metadata changes?

How can one find the latest time of metadata changes to a file? Let's say I changed the ownership of a file and then I did ls -l. It still shows the latest file changes. But I want to see the time ...
0
votes
1answer
719 views

What is the @ after directory listing mean? [duplicate]

so I have some files in a directory and when I type ls -l I get -rw-r--r-- 1 home staff 275 Apr 9 16:01 index.js -rwxr-xr-x@ 1 home staff 2565 Apr 8 10:38 person.js -rwxr-xr-x@ 1 home ...
1
vote
4answers
4k views

Is there a command to list files, exclude sub-directories and display size and date?

Before I begin please assume I have only basic knowledge in UNIX. Basic meaning I have only started reading about it since last week for a work related purpose. I have been experimenting with the ls ...
5
votes
1answer
5k views

Listing both ls information and mount points of a directory?

On my Ubuntu Natty, typically all new drives inserted (e.g. USB Flash thumbdrives) are mounted under /media. So, on my system, I can do something like this: $ mount | grep '/media' /dev/sda6 on ...
9
votes
8answers
15k views

Convert ls -l output format to chmod format

Say I have the following output from ls -l: drwxr-xr-x 2 root root 4096 Apr 7 17:21 foo How can I automatically convert this to the format used by chmod? For example: $ echo drwxr-xr-x | ...