The ls command lists the contents of a directory.

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3
votes
3answers
171 views

Sorting directories by last modified date/time of the same-named contained file

Is it possible, using grep, find, etc, to sort a list of directories by the last modified date of the same-named file (e.g., file.php) within? For example: domain1/file.php (last modified 20-Jan-2014 ...
0
votes
1answer
72 views

Executable directory? And chmod o+w changing the terminal directory color?

What does an executable directory mean? If o+w is set the directory changes colors to a background green, what does this mean? Why doesn't it do it for ug+w, but only for o+w? Additional question ...
0
votes
2answers
258 views

proper way to iterate through contents in a directory [duplicate]

I need to iterate through every file inside a directory. One common way I saw was using the for loop that begins with for file in *; do. However, I realized that it does not include hidden files ...
-1
votes
2answers
229 views

Matching multiple patterns with ls

I'd like to get a list of fail logs in the current directory for use in an outside script, the logs are determined with the pattern FAIL in the filename, so I've been using a FAIL* to feed my script ...
1
vote
2answers
178 views

sort and ls — why aren't capitalized letters sorted first?

I want a sorting like this, with capitalized letters before lowercase: -rw-r--r--. 1 0 0 183 2014-10-14 20:17 ./CHECKSUMS.md5 -rw-r--r--. 1 0 0 185 2014-10-14 20:17 ./CHECKSUMS.asc ...
15
votes
2answers
46k views

How do I make `ls` show file sizes in megabytes?

What commands do I need for Linux's ls to show the file size in MB?
6
votes
1answer
177 views

Filetype and dereference when listing directory with LS command

I'm trying to combine arguments to the ls command to list a directory content. What I'm basically trying to achieve is listing the directory dereferencing all links, but showing explicitly that the ...
18
votes
2answers
67k views

How to get only files created after a date with ls?

With ls command, does it possible to show only file created after a date, hour... I'm asking it because I have a directory with thousand of files. I want files created since yesterday. I use ls ...
6
votes
1answer
104 views

???? files in ls -l output

I see ghost files in red colour inside some of my directories: [drey@cyan|23:54|~/downloads]ls -la ls: cannot access teamviewer9_linux.deb: No such file or directory total 1318096 drwxrwx--- 1 root ...
0
votes
2answers
113 views

ls hard link question

I run ls -la on the Volumes directory. It shows the MM dir to have 9 hard links and the Media dir to have 12. If I then cd to the MM directory and run ls -la, it shows only 7 items whereas if I cd to ...
1
vote
2answers
61 views

Listing folder contents during cd command

I might be mistaken here, but I was watching someone navigate using the cd command, and without actually executing it, they were able to show the folder contents of the current folder. So if I type ...
12
votes
7answers
44k 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 ...
8
votes
4answers
34k views

How can I list subdirectories recursively?

The obvious ls -dR does not work. I am currently using find /path/ -type d -ls but the output is not what I need (plain listing of sub-folders) Is there a way out?
0
votes
1answer
165 views

External Hard Drive Issue on mac

After the cd /Volumes command when I type ls it shows me my hard drive name twice, with different permissions. After that when I try to use mkdir to create a directory in the external hard drive I'm ...
5
votes
1answer
170 views

How to colourise hidden files in `ls` file listings?

LS_COLORS environmental variable lets you decide on colours for different file types for ls command, such as, directories, regular files, links etc. I suppose that dot files are considered a variation ...
3
votes
1answer
372 views

Putting Files in Ascending order (not on time stamp basis) in Unix [closed]

How do I list files in Ascending manner, not on time stamp basis. EX:- Original listing A_2001 A_2002 A_2003 A_2004 B_2001 B_2002 B_2003 B_2004 Desired output:- A_2001 B_2001 A_2002 B_2002 ...
0
votes
1answer
86 views

Difference between “ls -l” and “dir -l” [duplicate]

What is the difference between ls -l and dir -l? I always use ls -l, but my colleague (who is slightly colour blind) uses dir -l. Is this the only difference: ls -l has colour and dir -l not have ...
5
votes
6answers
12k views

List files larger than {size} sorted by date

I want to solve the problem 'list the top 10 most recent files in the current directory over 20MB'. With ls I can do: ls -Shal |head to get top 10 largest files, and: ls -halt |head to get top ...
-2
votes
1answer
646 views

Find files using ls and wildcards

pwd : ../bin under bin I have a directory called datafiles. Use meta characters and the ls -lL command (with lower and upper case L) to list all filenames under the datafiles directory that contain a ...
13
votes
6answers
10k views

Show only hidden files (dot files) in ls alias

I'm using the command ls -a | grep '^\.' for showing only the hidden files. I added the line alias hidden='ls -a | grep '^\.'' # show only hidden files to .bash_aliases file but this does not ...
32
votes
1answer
4k views

Why can Linux show a file name containing character '/'?

The following picture is snapped in a real Linux environment. Why can Linux show a file name containing character '/'?
1
vote
1answer
88 views

ls and find command excluding a certain directory

I want to do this: ls -altrhS 'find / -type d \( ! -name tmp -prune \) -size +10000k 2> /dev/null -print' | egrep -v 'ibd|MYD|MYI' So I want to list, in that format, files of a specific size ...
5
votes
6answers
3k views

Strange case: Text file that exist and doesn't exist

I'm completely puzzled about a problem with a single plain text file in my system fedora 12. I used a known software in bioinformatics, maker, to produce lots of plain text files and one of them it ...
0
votes
1answer
199 views

Linux can't read and write, but windows can

I have a hard drive with a lot of back up files, that were created by PhotoRec. When mounting it with a windows computer I can read all the files perfectly fine. Under linux I get an error when ...
4
votes
2answers
8k views

How to list ALL directories according to their size? [without including the parent directory]

I have a bunch of random folders, some of them are hidden (beginning with a period). I want to list all of them, sorted by their sizes. I have something on the lines of this in mind: ls -d -1 -a */ ...
1
vote
2answers
43 views

How do I find a files directory?

I am looking for a specific file in OS/X. I can see the file by using: ls -alR | grep "mkmf.*" This shows my that the file exists. How do I find what directory the file is located. Many thanks ...
2
votes
1answer
31 views

Regarding identical copies of gedit files

When ever I save a gedit file in a directory, two copies of it get saved with identical content. Ex: If the gedit file is named as file_name and saved in Home directory then when u ls the Home ...
3
votes
2answers
160 views

exit a script if an ls line did not find any match

I am writing this script that have this line: ls -lrt /dir1/dir2/filename*.txt | tail -1 | awk '{print $9}' | read variable What I wanted is to exit the script (without using if-statement) if it ...
5
votes
3answers
1k views

Sorting ls output by time, when there are too many files for a single invocation

I know that I can sort the output of ls by time with the -t option. I know that when I have so many files that they don't fit in a single ls invocation, I can normally use xargs (or find ... -exec ...
27
votes
12answers
7k views

What's the most resource efficient way to count how many files are in a directory?

CentOS 5.9 I came across an issue the other day where a directory had a lot of files. To count it, I ran ls -l /foo/foo2/ | wc -l Turns out that there were over 1 million files in a single ...
3
votes
3answers
2k views

Where is “showing the output of the 'ls' command vertically” documented?

I found out it's possible to show the output of the ls command vertically using the -1 switch: $ ls -1 But couldn't find it in the manual of ls. Is it a secret option?
18
votes
4answers
29k views

Why is Debian's root shell colorless?

Are there any security concerns? What is the best way to enable it?
13
votes
4answers
696 views

Why does ls accept duplicate switches?

I'm curious - is there a difference between ls -l and ls -lllllllllllllllllllllllllllll? The output appears to be the same and I'm confused on why ls allows duplicate switches. Is this a standard ...
1
vote
3answers
783 views

Why is ls command slow to interrupt on NFS directory with lots of files?

I noticed in directories with lots of files on NFS if I do ls * then hit Ctrl-C it can take a while ( say 20 seconds ) before ls comes back. Why? Can ls command be fixed to be more responsive?
3
votes
1answer
81 views

Fine-tune LS_COLORS for directory suffixes?

I’m fine customizing most settings in LS_COLORS. I don’t need help customizing the colors for different file suffixes. What I would like to do is configure special colors for certain directories, ...
0
votes
1answer
2k views

ls command - list files containg speccific string in file name and belong to specific type

I am new to linux. Is it possible for a ls command to return a list of files containing "PRO" in its file name and belong to pli file type. I have researched and identified that ls -c -lt *.PLI will ...
7
votes
2answers
1k views

Which is more efficient, ls or ls -l?

As I understand, the ls command calls getdents, which returns up to x number of directory entries. Are there any other system calls involved? If I run ls -l, are there any more system calls? I am ...
16
votes
6answers
20k views

How to match case insensitive patterns with ls?

I would like to list all files matching a certain pattern while ignoring the case. For example, I run the following commands: ls *abc* I need to see all the file that have "abc" as a part of the ...
1
vote
1answer
393 views

Piping the output of ls or tree to less loses colors? [duplicate]

tree and ls can distinct file types by coloring filenames differently. tree and ls often output a long list of files (including directories), so I pipe the stdout output to less. But less doesn't ...
0
votes
3answers
637 views

List files of certain type under a dir?

If you want to list just directories (in the present directory) use ls -d */ What if you want to list just ordinary files, just executable files, or just soft links, or files of any other type? ...
0
votes
0answers
15 views

What are differences between directory order and alphebetic order with `ls`? [duplicate]

What are differences between directory order (-U) and alphabetic order (by default) with ls? They return the same order of a dir's contents to me.
3
votes
1answer
211 views

The -F option for ls

For command ls -F, --classify append indicator (one of */=>@|) to entries Wikipedia says * represents executable and / dir. Regular files are not followed by any of the above ...
3
votes
2answers
236 views

Valgrind /usr/lib files are not regular Linux files

The problem that I encountered today (on an embedded device with Linux) is that some files (specifically, the Valgrind /usr/lib files) are behaving very strange and they are not copy-able with scp ...
11
votes
1answer
3k views

What does a dot after the file permission bits mean?

I performed an ls -la on directory on my CentOS 6.4 server here and the permissions for a given file came out as: -rwxr-xr-x. I understand what -rwxr-xr-x means, what I don't understand is the . ...
1
vote
2answers
3k views

-bash: cd: .ssh/: Permission denied

When I type in cd .ssh in terminal, it returns with -bash: cd: .ssh/: Permission denied. Now I cannot add my ssh keys to ssh. When I type ssh-add ~/.ssh/idname it says /Users/Dan/.ssh/idname: ...
9
votes
3answers
7k 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 ...
8
votes
1answer
929 views

Why could the size of the “dot” file “.” exceed 4096?

Today I found an "empty" directory with a size of 4MB. It had no visible contents, so I tried ls -lah. This showed me some hidden files (not very large). Searching for the reason why the directory ...
2
votes
2answers
611 views

Difference between `ls -c` and `ls -t`

What is the difference between -c and -t options for the ls Unix command? And how can I sort by date of creation with the ls command?
16
votes
3answers
20k views

Find the owner of a directory or file, but only return that and nothing else

I am looking for a command that will return the owner of a directory and only that--such as a regex parsing the ls -lat command or something similar? I want to use the result in another script.
1
vote
3answers
909 views

dircolors “missing second token”

I'd like to customize the colors of ls and as far as I understand the way to go is with dircolors. I did: dircolors > ~/.dircolors Immediately after this I launch a terminal and get this error: ...