The ls command lists the contents of a directory.

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ls'ing through an entire directory tree to produce one pipeable list of files

This might have been answered already. But I wasn't able to find it. I have: directory directory/subdirectory/subdirectoryofsubdirectory ...
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6answers
1k views

How can I list files by type with ls?

When I use the ls command with the option -l, the first string of letters gives the info about each file, and the first letter in this string gives the file's type. (d = directory, - = standard file, ...
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2answers
3k views

How do regular expressions differ from wildcards used to filter files

While we use * to denote zero or more previous characters in grep, we use *.c to find all C files when we use it with the ls command like ls *.c. Could someone tell how the use of * differs in these ...
4
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2answers
976 views

Number of lines outputted by ls

When ls is called, it outputs all the files/directories in the current directory, attempting to fit as many as possible on each line. Why is it that when passed to wc -l, it outputs the number of ...
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3answers
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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 ...
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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 */ ...
4
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3answers
286 views

ls on device without mounting it

Is it possible to run ls on a device without mounting it first? Something like this: # ls /dev/sda1
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4answers
470 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 ! ...
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2answers
2k views

Tell if a folder/file is hidden in Mac OS X

I know you can set or unset the hidden flag of a folder/file by doing chflags hidden foo.txt and chflags nohidden foo.txt. But is there anyway of telling whether the folder/file is currently hidden ...
4
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3answers
264 views

What does “command1 -> command2” indicate in results from my ls -al?

when I do a ls -al in /usr/sfw/bin I see: make -> gmake What does this indicate? Is this a symbolic link? I've googled and have not found the answer to this question.
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2answers
654 views

Get the complement of the result of an ls command

Let's say I have a directory with multiple files, all of which are either binary files (files with no declared extensions) and source files (.c extension). I do this: $ ls and get: README.md ...
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4answers
430 views

List any file ending with .in and corresponding .out with shell script

I have a directory full of files ending with different extensions, how would I list/select only the files ending with .in and corresponding .out that share the same basename? e.g. file1.txt file1.in ...
4
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2answers
850 views

Tmux eclipsed colorized output of ls

I'm running Xubuntu 12.04, and when I use the Terminal I get colored filenames from ls. But inside tmux, everything ls prints is white. I know my tmux supports color, though, because I get color ...
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4answers
1k views

file $(ls /usr/bin/* | grep zip) command gives me errors. What's wrong?

I'm a total noob when it comes to unix/linux commands and I decided to read a book. I've reached a chapter where they try to explain how to pass the output of commands as expansions to the shell. ...
4
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4answers
171 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) ...
4
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2answers
195 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 ...
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2answers
9k views

Want to sort files by update date including sub-directories

I want to sort only files by update dates including sub-directories. I found out ls -lrtR | grep ^-. but it doesn't seem to sort by update dates. And I need to save this list into a file. Is it ...
4
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2answers
1k views

How can I search for a file with fixed name length using ls?

In a directory, I have files like lazer_100506 lazer_100707 lazer_091211 lazer_110103 lazer_100406_temp lazer_100622#delete etc How can I get a listing of only the first four files? $ ls ...
4
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1answer
151 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 ...
4
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1answer
301 views

“The entry is a door” in Solaris “ls” man page

I found this in a man page for ls in solaris linux. http://www.unix.com/man-page/opensolaris/1/ls/ What does it mean when it says: D the entry is a door?
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2answers
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ls *.* gives: “*.*: No such file or directory” message [duplicate]

I'm using Linux app-server 3.2.0-4-amd64 #1 SMP Debian 3.2.41-2+deb7u2 x86_64 GNU/Linux. When I go to a directory with several files named name1.php, name1.html, name2.php, etc. and type: $ sudo ls ...
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2answers
9k views

list all files newer than given timestamp and sort them

I want to list all files (sorted by date) that are newer than timestamp in format 20130207003851 in directory /tmp only. Subdirectories can be omitted. Using SUSE Linux Enterprise Server 11. The ...
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2answers
862 views

how to use grep for specific files?

for example I type ls -altr | grep "23 Dec" so it will show files for 23 Dec only and I want to use grep for them, like ls -altr | grep "23 Dec" | xargs grep -l "some_string" but this doesn't ...
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4answers
707 views

What is the Linux command to display how many file names in the directory end in two digits

What is the Linux command to display how many file names in the directory end in two digits? Using ls with a command like this : ls -l | wc –l *[0-9][0-9]
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3answers
340 views

Preserving color output with cut

Using bash interactively I am trying to use cut to prevent the lines from going longer than my terminal width. But when using a command with colorized output all the color gets removed by cut. For ...
4
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3answers
409 views

What could be the use case of changing modified time of a file to the future?

I was reading through the man page of ls on UNIX, specifically OS X Mavericks. This got me intrigued: If the modification time of the file is more than 6 months in the past or future, then the ...
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2answers
532 views

'ls -l' file timestamp format

When I issue the command: ls -l The file/directory modification timestamp column (specifically the month part) is displayed in the native language of the country I'm based in instead of English. ...
4
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3answers
4k views

what is total in the output of ls command [duplicate]

Possible Duplicate: ls command: what does the first line mean? I have an empty directory.I am using following command to view the contents of that directory. ls -lart The output I get is ...
4
votes
1answer
2k views

What's the second column of ls -l say? [duplicate]

Possible Duplicate: What is the number between file permission and owner in ls -l command output? I've been using Linux for years now and I'm embarrassed to say that until now I didn't ...
4
votes
1answer
1k 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 ...
4
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1answer
1k views

copying device nodes

I'm trying to transfer a working Linux installation to a new larger disk, so I've attached the new disk on a USB port, partitioned it and created filesystems. While copying all the files over I hit a ...
4
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1answer
317 views

Set ls color listings based on regex instead of globbing

Is it possible to set regex patterns for color matching in the LS_COLORS variable? So instead of just *.jpg=38;5;220 Can I do \.(jpg|gif)=38;5;220 That's just an example, I'd like to get more ...
4
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3answers
962 views

How to inspect group permissions of a file

I would like to inspect group permissions of a file from a bash script. Specifically, I need to check whether a file has the group writeable bit on. That's it. Simple as that. However: I also need ...
4
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2answers
3k views

file block size - difference between stat and ls

I've noticed that when I do a: ls -ls file It provides block count, say 8 blocks. When I do: stat file I notice that the block count is 16, twice the number given by ls. The block size on my ...
4
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2answers
172 views

Make ls distinguish scripts from binaries in output

Is it possible to make ls distinguish executable scripts from actual compiled binaries? The permissions are most often the same (+x), and with ls -F you get an asterisk suffix (*) for both, so it's ...
3
votes
2answers
553 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 ...
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3answers
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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?
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5answers
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How can I concatenate a single column of output into a list?

I'm using: ls /proc | grep -v "^[0-9].*" to get a list of all the files and directories in /proc that don't begin with numbers. The output is a single column list, i.e.: acpi asound buddyinfo bus ...
3
votes
1answer
6k views

How to get exact file size and file name?

Right now I am using ls -lt /my/directory (see below) then php parses the output. But inconsistently because the delimiter is space and there might be two or more spaces in between two fields. The ...
3
votes
3answers
3k views

How to search and replace text in all php-files in a directory and it's subdirectories

I am looking for a shell script that recursively traverses all .php files in a directory and performs a search & replace of a particular text pattern. The search pattern is quite long ( > 5000 ...
3
votes
1answer
399 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 ...
3
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5answers
234 views

Look if a folder has some files of certain extention

Lets say I have a file structure: $ cd /home/Desktop $ ls -d */ Abc/ Qwe/ Zxc/ Rty/ $ Now I want to iterate through every directory and look if they have any .pdf files. Could some one please ...
3
votes
2answers
109 views

dircolors: rules for _ext (rather than .ext)

In UNIX, many file extensions do not contain the dot in front, as in bashrc rather than bash.rc or ssh_config rather than ssh.config I would like to add dircolor rules for _config as well. However, ...
3
votes
2answers
538 views

Total in `ls -l`

When I run ls -l, the following is displayed: >: ls -l total 320 -rw-r--r-- 1 foo staff 633 5 Apr 13:23 A.class -rw-r--r-- 1 foo staff 296 5 Apr 13:24 A.java ... What does the ...
3
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2answers
248 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 ...
3
votes
2answers
166 views

How do I create a structured list of all the files and directories under a particular directory (recursively)?

I need to have an "image" of a file system without actual contents of the files - just all the names and the structure, so that I can read the file and know what files were stored there and how were ...
3
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2answers
140 views

Executables show with character * next to their name in output of ls

I noticed that when I list my executables with ls on my Z shell they show up with a character * next to their name (e.g. see the file in red .test_color_scheme)     What is causing ...
3
votes
3answers
176 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 ...
3
votes
1answer
220 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
1answer
59 views

Customize bash to always include a certain parameter

When using the "ls" command, bash prints in the following format: file1 file2 file3 file4 file5 file6 file7 file8 But when given the parameter "-1", it prints: file1 file2 file3 etc... Is there ...