Commands tagged type (8)

  • 5 Which Aliases

    5 helpful aliases for using the which utility, specifically for the GNU which (2.16 tested) that is included in coreutils. Which is run first for a command. Same as type builtin minus verbosity alias which='{ command alias; command declare -f; } | command which --read-functions --read-alias' Which (a)lias alias whicha='command alias | command which --read-alias' Which (f)unction alias whichf='command declare -f | command which --read-functions' Which e(x)ecutable file in PATH alias whichx='command which' Which (all) alias, function, builtin, and files in PATH alias whichall='{ command alias; command declare -f; } | command which --read-functions --read-alias -a' # From my .bash_profile http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html Show Sample Output


    2
    alias whichall='{ command alias; command declare -f; } | command which --read-functions --read-alias -a'
    AskApache · 2010-11-18 03:32:04 8
  • Determine command type (alias, keyword, function, builtin, or file)

    Prints a string indicating whether a command is an alias, keyword, function, builtin, or file. I have used this in my BASH scripts to allow an external parameter to define which function to run, and ensure that it is a valid function that can indeed be run. Show Sample Output


    1
    type -t $1
    bbbco · 2012-01-10 21:57:29 6
  • How to delete all the archive files with extension *.tar.gz and greater than 10MB?

    Please be careful while executing the following command as you don?t want to delete the files by mistake. The best practice is to execute the same command with ls ?l to make sure you know which files will get deleted when you execute the command with rm.


    0
    find / -type f -name *.tar.gz -size +10M -exec ls -l {} \;
    0disse0 · 2010-06-29 12:39:02 6
  • get disk usage sum for files of type

    print sum of disk usage for filetype within current dir and subdirs Show Sample Output


    0
    find . -name '*.xml' -type f -print | xargs du -ch
    nathwill · 2011-03-22 00:47:42 6
  • Adds "-c" canonical option to bash "type" builtin command to follow symbolic links

    The "type" builtin command is handy to find out what executable will be used if you issue a command. But on some distros, particularly when using /etc/alternatives, certain executables get buried under layers and layers of symbolic links and it becomes hard to find which one. If you put the above command in your .bashrc, it adds a "-c" option to the type command that will weed through the symbolic links and prints the actual file that will be executed. Show Sample Output


    0
    type () { if [ "$1" = "-c" ]; then shift; for f in "$@"; do ff=$(builtin type -p "$f"); readlink -f "$ff"; done; else builtin type $typeopts "$@"; fi; }
    splante · 2011-04-07 18:57:51 6
  • Find core files

    Will find and list all core files from the current directory on. You can pass | xargs rm -i to be prompted for the removal if you'd like to double check before removal.


    0
    find . -type f -regex ".*/core.[0-9][0-9][0-9][0-9]$"
    H3liUS · 2014-01-17 16:44:47 8
  • guess the filetype for a file


    0
    file file.txt
    lolssl · 2015-10-01 19:40:49 10
  • What Type of Computer Do You Have?

    Prints the type of computer you have. I think this should be used more in distros and other applications because it is so easy to get. This can also be asked by tutorials as an easy way to get your base hardware. Some alternatives: sudo dmidecode -s system-product-name and sudo smbios-sys-info-lite | sed -n 's/^Product Name: *\(.*\)/\1/p' Show Sample Output


    -2
    cat /sys/devices/virtual/dmi/id/board_name
    matthewbauer · 2010-04-22 03:21:40 10

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Check These Out

Get absolut path to your bash-script
Another way of doing it that's a bit clearer. I'm a fan of readable code.

backup and remove files with access time older than 5 days.
create an archive of files with access time older than 5 days, and remove original files.

Touch a file using a timestamp embedded in the file name.
tstouch takes two arguments: a filename containing a timestamp, and an extended regular expression with the parenthesized section matching a timestamp of the form YYYYMMDDhhmm or YYYYMMDDhhmm.ss. It then touches the file with that timestamp.

show installed but unused linux headers, image, or modules
will show: installed linux headers, image, or modules: /^ii/!d avoiding current kernel: /'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d only application names: s/^[^ ]* [^ ]* \([^ ]*\).*/\1/ avoiding stuff without a version number: /[0-9]/!d

Get OSX Battery percentage
adjusting the field "f1" will give you additional information such as f1 = 98% f2 = discharging f3 = 2:02 remaining

uniq for unsorted data

Multi-segment file downloading with lftp
This is for files only, for directories 'mirror' has to be used.

analyze traffic remotely over ssh w/ wireshark
When using tcpdump, specify -U option to prevent buffering.

List just the executable files (or directories) in current directory
A bit shorter ;)

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: