Commands using ls (517)

  • Find all SUID binaries


    1
    find / -perm +6000 -type f -exec ls -ld {} \;
    aguslr · 2011-10-14 22:19:58 5
  • Zip each file in a directory individually with the original file name

    This will list the files in a directory, then zip each one with the original filename individually. video1.wmv -> video1.zip video2.wmv -> video2.zip This was for zipping up large amounts of video files for upload on a Windows machine.


    1
    ls -1 | awk ' { print "zip "$1".zip " $1 } ' | sh
    kaywhydub · 2011-12-14 20:30:56 6
  • list with full path


    1
    ls -d $PWD/*
    putnamhill · 2011-12-16 19:12:55 3
  • list with full path


    1
    ls -d1 $PWD/{.*,*}
    bunam · 2011-12-17 12:25:15 2
  • list with full path


    1
    ls -d1 $PWD/*
    www · 2011-12-31 14:46:41 3
  • List files in directory tree with newest last


    1
    find <directory> -type f -printf "%T@\t%p\n"|sort -n|cut -f2|xargs ls -lrt
    rik · 2012-03-02 12:51:06 3
  • Recursively list all of the files in a directory, group them by extension and calculate the average of the file sizes in each group

    Here's an annotated version of the command, using full-names instead of aliases. It is exactly equivalent to the short-hand version. # Recursively list all the files in the current directory. Get-ChildItem -Recurse | # Filter out the sub-directories themselves. Where-Object { return -not $_.PsIsContainer; } | # Group the resulting files by their extensions. Group-Object Extension | # Pluck the Name and Count properties of each group and define # a custom expression that calculates the average of the sizes # of the files in that group. # The back-tick is a line-continuation character. Select-Object ` Name, Count, @{ Name = 'Average'; Expression = { # Average the Length (sizes) of the files in the current group. return ($_.Group | Measure-Object -Average Length).Average; } } | # Format the results in a tabular view, automatically adjusted to # widths of the values in the columns. Format-Table -AutoSize ` @{ # Rename the Name property to something more sensible. Name = 'Extension'; Expression = { return $_.Name; } }, Count, @{ # Format the Average property to display KB instead of bytes # and use a formatting string to show it rounded to two decimals. Name = 'Average Size (KB)'; # The "1KB" is a built-in constant which is equal to 1024. Expression = { return $_.Average / 1KB }; FormatString = '{0:N2}' } Show Sample Output


    1
    ls -r | ?{-not $_.psiscontainer} | group extension | select name, count, @{n='average'; e={($_.group | measure -a length).average}} | ft -a @{n='Extension'; e={$_.name}}, count, @{n='Average Size (KB)'; e={$_.average/1kb}; f='{0:N2}'}
    brianpeiris · 2012-03-13 17:58:10 9
  • export iPad App list to txt file

    This will generate the same output without changing the current directory, and filepath will be relative to the current directory. Note: it will (still) fail if your iTunes library is in a non-standard location.


    1
    ls "~/Music/iTunes/iTunes Media/Mobile Applications" > filepath
    minnmass · 2012-05-04 09:51:59 48
  • pngcrush all .png files in the directory

    Nothing too magical here, just uses pngcrush to losslessly compress all your pngs!


    1
    ls *.png | while read line; do pngcrush -brute $line compressed/$line; done
    waffleboi9 · 2012-07-17 20:20:49 5
  • Hide files in ls, by adding support for .hidden files!

    Sometimes I would like to see hidden files, prefix with a period, but some files or folders I never want to see (and really wish I could just remove all together). Show Sample Output


    1
    alias ls='if [[ -f .hidden ]]; then while read l; do opts+=(--hide="$l"); done < .hidden; fi; ls --color=auto "${opts[@]}"'
    expelledboy · 2012-08-12 13:10:23 5
  • Symlink all files from a base directory to a target directory


    1
    ln -s /base/* /target && ls -l /target
    mattcen · 2012-08-22 11:27:40 5
  • Show the UUID of a filesystem or partition

    Show the UUID-based alternate device names of ZEVO-related partitions on Darwin/OS X. Adapted from the lines by dbrady at http://zevo.getgreenbytes.com/forum/viewtopic.php?p=700#p700 and following the disk device naming scheme at http://zevo.getgreenbytes.com/wiki/pmwiki.php?n=Site.DiskDeviceNames Show Sample Output


    1
    ls /dev/disk* | xargs -n 1 -t sudo zdb -l | grep GPTE_
    grahamperrin · 2012-10-06 20:19:45 5
  • Get the /dev/disk/by-id fragment for a physical drive

    Substitute for #11720 Can probably be even shorter and easier. Show Sample Output


    1
    ls -l /dev/disk/by-id/ | grep '/sda$' | grep -o 'ata[^ ]*'
    michelsberg · 2013-01-16 17:28:11 7
  • ls -qahlSr # list all files in size order - largest last

    I find it useful, when cleaning up deleting unwanted files to make more space, to list in size order so I can delete the largest first. Note that using "q" shows files with non-printing characters in name. In this sample output (above), I found two copies of the same iso file both of which are immediate "delete candidates" for me. Show Sample Output


    1
    ls -qahlSr # list all files in size order - largest last
    mpb · 2013-03-13 09:52:07 29
  • Find top 5 big files

    zsh: list of files sorted by size, greater than 100mb, head the top 5. '**/*' is recursive, and the glob qualifiers provide '.' = regular file, 'L' size, which is followed by 'm' = 'megabyte', and finally '+100' = a value of 100


    1
    ls -Sh **/*(.Lm+100) | tail -5
    khayyam · 2013-03-21 20:22:11 4
  • Prints total line count contribution per user for an SVN repository

    make usable on OSX with filenames containing spaces. note: will still break if filenames contain newlines... possible, but who does that?!


    1
    svn ls -R | egrep -v -e "\/$" | tr '\n' '\0' | xargs -0 svn blame | awk '{print $2}' | sort | uniq -c | sort -nr
    rymo · 2013-04-10 19:37:53 5
  • Like top but for files

    Like top, but for files


    1
    watch -d -n 2 'df; ls -FlAt;'
    G2G · 2013-09-17 05:44:47 6
  • Prints the latest modified files in a directory tree recursively

    Sorts by latest modified files by looking to current directory and all subdirectories Show Sample Output


    1
    find . -name '*pdf*' -print0 | xargs -0 ls -lt | head -20
    fuats · 2013-10-03 21:58:51 9
  • count files by type

    displays a list of all file extensions in current directory and how many files there are of each type of extension in ascending order (case insensitive) Show Sample Output


    1
    ls | tr [:upper:] [:lower:] | grep -oP '\.[^\.]+$' | sort | uniq -c | sort
    icefyre · 2014-01-30 11:37:27 10
  • List all NPM global packages installed

    Show Sample Output


    1
    npm ls -g|grep "^[&#9500;&#9492;]\(.\+\)\?[&#9516;&#9472;] "
    lucasmezencio · 2014-02-03 21:50:39 7
  • List all duplicate directories

    Very quick! Based only on the content sizes and the character counts of filenames. If both numbers are equal then two (or more) directories seem to be most likely identical. if in doubt apply: diff -rq path_to_dir1 path_to_dir2 AWK function taken from here: http://stackoverflow.com/questions/2912224/find-duplicates-lines-based-on-some-delimited-fileds-on-line Show Sample Output


    1
    find . -type d| while read i; do echo $(ls -1 "$i"|wc -m) $(du -s "$i"); done|sort -s -n -k1,1 -k2,2 |awk -F'[ \t]+' '{ idx=$1$2; if (array[idx] == 1) {print} else if (array[idx]) {print array[idx]; print; array[idx]=1} else {array[idx]=$0}}'
    knoppix5 · 2014-02-25 22:50:09 27
  • List all symbolic links in current directory

    Tested with GNU and BSD ls. Show Sample Output


    1
    ls -la | grep ^l
    gatopan · 2014-08-11 03:06:48 8
  • List all symbolic links in current directory

    With this version, you can list all symlinks in the current directory (no subdirectories), and have it list both the link and the target. Show Sample Output


    1
    ls -l `find ~ -maxdepth 1 -type l -print`
    skittleys · 2015-01-04 02:36:47 7
  • list txt files order by time

    list all txt files order by time, newest first


    1
    ls -lt --time=atime *.txt
    miccaman · 2015-05-21 21:03:44 10
  • Adding Prefix to File name

    Adding course name prefix to lecture pdfs Show Sample Output


    1
    ls *.pdf | while read file; do newfile="CS749__${file}"; mv "${file}" "${newfile}"; done;
    programmer · 2016-04-19 11:04:47 16
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Find and copy scattered mp3 files into one directory
No problem with word splitting. That should works on many Unix likes.

Stop Flash from tracking everything you do.
Brute force way to block all LSO cookies on a Linux system with the non-free Flash browser plugin. Works just fine for my needs. Enjoy.

Enter parameter if empty (script becomes interactive when parameters are missing)
Can be used for command line parameters too. If you have a more complicated way of entering values (validation, GUI, ...), then write a function i.e. EnterValue() that echoes the value and then you can write: $ param=${param:-$(EnterValue)}

Change user within ssh session retaining the current MIT cookie for X-forwarding
When you remotely log in like "ssh -X userA:host" and become a different user with "su UserB", X-forwarding will not work anymore since /home/UserB/.Xauthority does not exist. This will use UserA's information stored in .Xauthority for UserB to enable X-forwarding. Watch http://prefetch.net/blog/index.php/2008/04/05/respect-my-xauthority/ for details.

Cut out a piece of film from a file. Choose an arbitrary length and starting time.
With: -vcodec, you choose what video codec the new file should be encoded with. Run ffmpeg -formats E to list all available video and audio encoders and file formats. copy, you choose the video encoder that just copies the file. -acodec, you choose what audio codec the new file should be encoded with. copy, you choose the audio encoder that just copies the file. -i originalfile, you provide the filename of the original file to ffmpeg -ss 00:01:30, you choose the starting time on the original file in this case 1 min and 30 seconds into the film -t 0:0:20, you choose the length of the new film newfile, you choose the name of the file created. Here is more information of how to use ffmpeg: http://www.ffmpeg.org/ffmpeg-doc.html

Validating a file with checksum
Makes sure the contents of "myfile" are the same contents that the author intended given the author's md5 hash of that file ("c84fa6b830e38ee8a551df61172d53d7").

find files ignoring .svn and its decendents

Converts multiple youtube links to mp3 files
Usage: ytmp3 "YTurl" "YTurl2" "YTurl3" "YTurlN" Uses the shift command to let you extract the .mp3 from as many youtube urls as you like (or wherever else youtube-dl is supported) *Requires youtube-dl Orginal chunk of code: youtube-dl -q -t --extract-audio --audio-format mp3 URL taken from here http://www.commandlinefu.com/commands/view/9701/convert-youtube-videos-to-mp3

list files recursively by size

Run a script in parrallel over ssh
Runs a local script over ssh assuming ssh keys are in place. -P argument prints results to stdout. # Uses - https://code.google.com/p/parallel-ssh/

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