The ls command lists the contents of a directory.

learn more… | top users | synonyms

15
votes
4answers
2k views

Understanding UNIX/Linux permissions and chmod [duplicate]

I've never really got how chmod worked up until today. I followed a tutorial that explained that you've got three different permission groups: owner (u) group (g) everyone (o) I've also learned ...
12
votes
5answers
13k 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 ...
11
votes
1answer
26k views

How can I assign the output of a command to a shell variable?

I want to assign the result of an expression to a variable and concatenate it with a string, then echo it. Here's what I've got: #!/bin/bash cd ~/Desktop; thefile= ls -t -U | grep -m 1 "Screen Shot"; ...
3
votes
5answers
8k views

How to output only file names (with spaces) in ls -Al?

I should echo only names of files or directories with this construction: ls -Al | while read string do ... done ls -Al output : drwxr-xr-x 12 s162103 studs 12 march 28 12:49 personal ...
12
votes
8answers
29k views

List only regular files (but not directories) in current directory

I can use ls -ld */ to list all the directory entries in the current directory. Is there a similarly easy way to just list all the regular files in the current directory? I know I can use find find . ...
0
votes
3answers
144 views

Making a text file of list of directory entries in bin

How could I make a text file of the list of directory entries in /bin/ along with the attributes of all the files stored there?
5
votes
8answers
6k 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 | ...
2
votes
0answers
32 views

Question marks instead of national letters in console

I have Netgear Stora MS2000 (which uses a modified version of Red Hat) and have strange font issues while connecting by SSH. Note that this occurs both when connecting by PuTTY from Windows and by ...
0
votes
0answers
33 views

getting ? in permissions when running ll/ls command

I am trying to remove a folder and I am getting rm: cannot remove ‘...' when running the ll command I am getting : > ll ./folder/ ls: cannot access ./folder: Input/output error total 64 ...
2
votes
3answers
10k views

ls to show only directory/filename and size

First of all, this is not a duplicate of this: Linux ls to show only filename date and size Because I want to print actual directory name additionally. I was always using this command: ls -l | awk ...
16
votes
7answers
14k views

List files sorted numerically

I have a bunch of files from log1 to log164. I'm trying to LIST the directory (sorted) in a UNIX terminal but the sort functions are only providing the format like this: home:logs Home$ ls -1 | sort ...
42
votes
6answers
8k views

The result of ls * , ls ** and ls ***

I know using the command ls will list all the directories. But what does the ls * command do ? I used it and it just lists the directories. Is the star in front of ls means how deep it can list the ...
0
votes
1answer
28 views

Solaris 11.2 extended permissions shown by ls

I have a file that shows up as having extended file permissions. ls -V /usr/share/X11/app-defaults/XScreenSaver rwx------ 1 root root 53 Dec 2 21:52 ...
1
vote
3answers
79 views

What is the meaning of ls -d ?

I entered the man page of ls, the entry for the -d option is as follows: -d, --directory list directory entries instead of contents, and do not derefer‐ ence ...
4
votes
1answer
129 views

Can the command completion for `cd` be modfiied to only show directories and ignore files?

When I am in a directory in bash, and I press cd Space Tab, it shows everything in the directory as a possibility. (Show all 1000 possibilities?) This is really cumbersome when I am in a directory ...
12
votes
3answers
433 views

No colored output in less for the ls command

If I run ls I get colored output which I find pretty handy for quickly getting a glance of the kind of file. When I try to pipe it to less even with the -r and -R flags the coloring always get lost. I ...
1
vote
4answers
56 views

get file size and line count at the same time

I'm looking for a way to list all files in a directory, with both their size, and a line count. Right now I'm using stat -c \"%s %n\" /directory/* to get file names and sizes, and I know I can use ...
11
votes
5answers
790 views

How do I get the size of a directory on the command line?

I tried to obtain the size of a folder (containing folders and sub folders) by using the ls command with option l. It seems to work for files (ls -l file name), but if I try to get the size of a ...
1
vote
1answer
15 views

How to display metainformation for different kinds of time of a file ?

As far as I know each name within a path, e.g. /name1/name2/name3, is allocated to one inode. This inode is a collection of meta information for each name (file or directory). Some of these ...
18
votes
5answers
7k views

What is the difference between ls and l?

I accidentally typed l instead of ls today and found that the command still printed a list of the files in my current directory. Trying l --help brings up the help file for ls suggesting that l is ...
0
votes
2answers
49 views

bash permissions - unknown problem

So strangely enough I have the following problem in a directory inside a script: #!/usr/bin/env bash MAIN_DIR=/home/ec2-user/dir/ LAST_DIR=$(ls -d -t ${MAIN_DIR}*/ | head -1) When I run it I get: ...
9
votes
9answers
26k 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 ...
1
vote
1answer
73 views

What are all possible letters for Unix file permissions?

I'm trying to write a regular expression to match Unix file permissions returned by ls -l command. Here I found that all possible letters for the first field are d,c,l,p,s,b,D. Now, what are all ...
2
votes
2answers
78 views

Using find to list all files under certain directory

I'm trying to use a single line command that will find every directory (or sub-directory) named bin and will then print a list of all the files under it, but will not also list the directory names ...
0
votes
1answer
39 views

What does the option -C achieve in ls output?

In the man pages it says: -C list entries by columns However, I really cannot notice any difference between the output of ls or ls -C, could someone explain this to me?
-1
votes
2answers
47 views

How do I get a list of all directories and files with absolute paths each line ?

Using ls -R / i get every file and directory listed that exists, but not in the desired format. What do I need to write on the command line in order to get a list in such a format, that every line ...
6
votes
1answer
65 views

stat: print time in “long-iso” format

For my script, I would like to have stat command to print time in a nice, human friendly, way: 2015-02-04 00:48:31. ls calls this format long-iso and it can be used like this: $ ls -lA ...
8
votes
2answers
947 views

Controlling what files to display

I recently changed my emacs config to hide backup files by prepending a dot to the file name. This got me to thinking - is there a ready way to change the behavior within Bash to use a list of ...
0
votes
4answers
49 views

What is the command to find the read/write permissions for a single file?

I know that ls -l lists the permissions of every file in a directory but what is the command if I want to see the permissions of just a specific file?
4
votes
3answers
1k views

recursive 'ls' giving absolute filenames

When I do 'ls -R' in a directory, I get something like ./dir1 dir2 file1.txt file2.txt ./dir1/dir2 file3.txt file4.txt but I would like a command that gives me ./dir1/file1.txt ./dir1/file2.txt ...
5
votes
3answers
7k views

Difference between ls -l and ll?

I'm relatively new to programming as a whole and some tutorials have been telling me to use ls -l to look at files in a directory and others have been saying ll. I know that ls is a short list, but ...
4
votes
4answers
165 views

list folders and their content

I'd need a file reporting for each folder the content and the name of the folder itself. If I do ls -l * I have (this is just a subset of hundreds of folders) ...
5
votes
7answers
1k views

ls content of a directory ignoring symlinks

I have a directory in which I would like to list all the content (files and sub directories) without showing the symbolic links. I am using GNU utilities on Linux. The ls version is 8.13. Example: ...
12
votes
3answers
14k views

dircolors: modify color settings globaly

I understand ls uses dircolors to display colored output. dircolors has default database of colors associated with file extensions, which can be printed wiht the command dircolors --print-database ...
0
votes
1answer
35 views

Change the way folders are displayed in terminal [duplicate]

I moved over from Xubuntu to Fedora. In a colored Xubuntu terminal the folders appear in bold blue wheras in Fedora they appear as normal blue. I'm familiar with ANSI codes for colors and style but ...
1
vote
5answers
6k views

Human-readable ls output under AIX?

How can I get human-readable ls output under AIX? There is no -h parameter
15
votes
4answers
3k views

Why does “ls | wc -l” show the correct number of files in current directory? [duplicate]

Trying to count number of files in current directory, I found ls -1 | wc -l, which means: send the list of files (where every filename is printed in a new line) to the input of wc, where -l will count ...
2
votes
3answers
38 views

How to determine if a soft link's target is a directory or a file?

Given the ll command outputs as follows #> ll lrwxrwxrwx ... How to determine if a soft link's target is a directory or a file from "lrwxrwxrwx"?
4
votes
2answers
173 views

Appending works without >> when redirecting standard output and error

I have a file test.txt and have no file named test. When I tried ls test test.txt > new 2>new I was expecting new to be overwritten since >> is not used. But in the output file I got ...
1
vote
3answers
659 views

In a Bash if condition, how to check whether any files matching a simple wildcard expression exist?

Stupidly, I had been using a condition like this as part of a script: if [ $(ls FOO* 2> /dev/null) ] # if files named "FOO*" were downloaded then echo "Files found" # ... process and ...
3
votes
2answers
507 views

How to ls without recursive

I am trying to ls some files with a pattern in a directory. I only want to scan the first level not recursive. My script: for i in $(ls $INCOMINGDIR/*$BUSSINESSDATE*) do echo $i; done Above ...
4
votes
2answers
691 views

Why does ls display a non-existing file?

I want to list all the files whose name begins with uppercase: [root@localhost /]# ls /usr/bin/[[:upper:]]* /usr/bin/AtoB /usr/bin/GenIssuerAltNameExt /usr/bin/PKCS12Export ...
2
votes
2answers
619 views

Change file timestamp and display hour instead of year with ls

I want to change a file's date to tomorrow 21:00. I used touch, but when I type ls -l the year of the file is displayed instead of the hour. -rw-r--r-- 1 ABCD DEF 0 sept. 30 2014 test01 -r-xr-xr-x ...
1
vote
1answer
72 views

How can I list hidden directories, then directories, then hidden files and finally files with ls?

I'm trying to figure out how to list the contents of a directory in the following group order: Hidden directories Non-hidden directories All other hidden files (including regular files, symlinks, ...
2
votes
0answers
38 views

What uses Linux “application memory”?

Just for fun, I wanted to watch what ls -lR / does to my "buffers" memory on a Linux system. As expected, the value increased. But I noticed that the "application memory" (i.e. "used" - (buffers + ...
0
votes
0answers
30 views

Pipe to `ls` Not Working as Expected [duplicate]

When I issue: [dave@dhost ~]$ which tar | ls -l I get the output of ls -l of the pwd. I expected to get: -rwxr-xr-x. 1 root root 395472 Feb 21 2013 /bin/tar Why doesn't the pipe work as I ...
1
vote
1answer
59 views

List files from time X to time Y

How to list out all files created between from 'x' to 'y' time? I want to list out files created between "29-dec-2014 18:00" to "30-dec-2014 18:00". Using ls or stat?
3
votes
3answers
125 views

How to inspect the contents of /dev/sdt?

I have what I hope is not a huge problem, but could end up being a very large problem. For some context, I mistakenly ran this command on my 27'' iMac: sudo dd if=ubuntu-rescue.img of=/dev/sdt ...
2
votes
1answer
36 views

GNU ls long listing without permissions/mode bit

Is it possible to make GNU ls omit permissions/mode bits in long listing? If not, is there an alternative, practical and commonly available program that is more flexible?
2
votes
1answer
31 views

Disable of coloring for ls on NTFS filesystems

I like to have the output of ls colored so I quickly can spot files of specific types, however I have a separate disk in my computer which uses a ntfs-3g filesystem, this means that everything has ...