Commands tagged osx (61)

  • Speaks latest tweet by Obama (os x)

    speaks out last twitter update using 'say'


    -1
    curl "http://api.twitter.com/1/statuses/user_timeline.xml?count=1&screen_name=barackobama" | egrep -w "<text>(.*)</text>" | sed -E "s/<\/?text>//g" | say
    beerdeaap · 2012-02-27 18:46:33 3
  • OSX Terminal helper with tab completion, ssh tunneling, and now screen re-attach

    http://github.com/c3w/ash . a Ruby SSH helper script . reads a JSON config file to read host, FQDN, user, port, tunnel options . changes OSX Terminal profiles based on host 'type' USAGE: put 'ash' ruby script in your PATH modify and copy ashrc-dist to ~/.ashrc configure OSX Terminal profiles, such as "webserver", "development", etc run "ash myhostname" and away you go! v.2 will re-attach to a 'screen' named in your ~/.ashrc Show Sample Output


    -1
    ash prod<tab>
    c3w · 2012-05-12 19:51:02 8
  • OSX - Function to list all members for a given group

    Group membership in OS X is a mish-mash of standards that end up meaning there's almost a half-dozen of ways to belong to a group, what with group inheritance and automatic assignment. This means there's no easy command to find out all groups a user belongs to. The only sensible way then is to list all users and then query each user for membership. NOTE: This is a function. Once input you can execute it by calling with a groupname. Show Sample Output


    -1
    members () { dscl . -list /Users | while read user; do printf "$user "; dsmemberutil checkmembership -U "$user" -G "$*"; done | grep "is a member" | cut -d " " -f 1; };
    eduo · 2012-05-20 11:34:33 7
  • detect partitions

    List all disks and all of their partitions on OS X. http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man8/diskutil.8.html Show Sample Output


    -1
    diskutil list
    grahamperrin · 2012-10-06 21:18:27 6
  • List OSX applications and versions.

    Uses find, plutil and xpath. Note: Some applications don't have proper information. system_profiler might be better to use. It's a bit slow query. Due to command length limit, I removed -name "*.app" and CFBundleName. Show Sample Output


    -1
    find /Applications -type d -maxdepth 1 -exec sh -c 'echo "{}"; (plutil -convert xml1 -o - "{}/Contents/Info.plist" | xpath /dev/stdin "concat(\"v\", /plist/dict/string[preceding-sibling::key[1]=\"CFBundleShortVersionString\"]/node())" 2>/dev/null)' \;
    darkfader · 2013-03-29 14:01:23 4
  • Mount a disk image (dmg) file in Mac OSX


    -2
    hdid somefile.dmg
    rnoyfb · 2010-01-15 12:00:48 5
  • MAC OS X: audible notification after a long command

    I often run some command that takes a while to finish. By putting the say command afterward, I get an audio notification. Please note that this command (say) only works on Mac OS X and not Linux.


    -2
    long_command; say I am all done
    haivu · 2010-01-27 19:03:01 12
  • Generate background office noise using Digg feeds and OSX.

    Instead of having someone else read you the Digg headlines, Have OSX do it. Requires Curl+Sed+Say. This could probably be easily modified to use espeak for Linux.


    -2
    IFS=`echo -en "\n\b"`; for i in $(curl http://feeds.digg.com/digg/container/technology/popular.rss | grep '<title>' | sed -e 's#<[^>]*>##g' | tail -n10); do echo $i; echo $i | sed 's/^/Did you hear about /g' | say; sleep 30; done
    echosedawk · 2010-06-07 22:16:19 4
  • Enable Hibernate in OS X


    -3
    sudo pmset -a hibernatemode 1
    therod · 2009-04-28 19:53:57 5
  • Use FileMerge to compare two files

    This command will open up the two files in FileMerge on OS X. You can also compare two directories. opendiff directory1 directory2 NOTE: FileMerge is a part of the OS X Developer Tools, available on the install disc.


    -3
    opendiff <file1> <file2>
    claytron · 2009-06-16 03:22:52 7
  • OSX: Use Say Command to Help You Play Hide-and-Seek

    Hide-and-Seek is one of the greatest games in the parent's arsenal. Your kid runs off and hides for several minutes, while waiting for you to find him/her. This gives you time to catch a breath and check your email without feeling like a loser. If you'd also like to take advantage of the counting time--claiming that thinking space as your own--use this command on your OSX terminal to maximize downtime. Also, if your kid is like mine, you can get away with "for i in {1..100};" :)


    -3
    txt="";for i in {1..20};do txt=$txt"$i. ";done;say $txt" Ready or not, here I come"
    antic · 2011-12-11 05:51:22 21
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Define shell variable HISTIGNORE so that comments (lines starting with #) appear in shell history
I was surprised to find that with RedHat bash, I could not find any comment lines (begining with #) in my bash shell history. Surprised because in Mageia Linux this works. It turns out that RedHat's bash will keep comment lines if in my .bashrc, I define: export HISTIGNORE=' cd "`*: PROMPT_COMMAND=?*?' Why have comment lines in shell history? It's a handy and convenient way to make proto-commands (to be completed later) and for storing brief text data that is searchable in shell history.

Use find to get around Argument list too long problem
Can be used for other commands as well, replace rm with ls. It is easy to make this shorter but if the filenames involved have spaces, you will need to do use find's "-print0" option in conjunction with xargs's "-0" option. Otherwise the shell that xargs uses to execute the "rm" command line will treat the space as a token separator, thereby treating the name as two (or more) names.

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Retrieve the size of a file on a server
Downloads the entire file, but http servers don't always provide the optional 'Content-Length:' header, and ftp/gopher/dict/etc servers don't provide a filesize header at all.

Sort all running processes by their memory & CPU usage
you can also pipe it to "tail" command to show 10 most memory using processes.

Create POSIX tar archive
tar(1) and cpio(1) are not fully platform agnostic, although their file formats are specified in POSIX.1-2001. As such, GNU tar(1) might not be able to extract a BSD tar(1) archive, and ivce versa. pax(1) is defined in POSIX.1-2001. To extract an archive: $ pax -rf archive.tar

BourneShell: Go to previous directory
cd - would return to the previous directory of your cd command. NB: previous dir is always stored in $OLDPWD variable.

Copy a file using dd and watch its progress
This is a more accurate way to watch the progress of a dd process. The $DDPID=$! is needed so that you don't get the PID of the sleep. The sleep 1 is needed because in my testing at least, if you run kill -USR1 against dd too quickly, it will kill it off instead of display the status. So you need to wait a second, probably so that it can configure itself to trap the USR1 signal.

Find files with size over 100MB and output with better lay-out

Convert all Flac in a directory to Mp3 using maximum quality variable bitrate

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