All commands (14,187)

  • Copy a file to a range of other files. Show Sample Output


    9
    for i in {1..5}; do cp test{,$i};done
    azeey · 2009-05-06 21:44:03 6

  • 4
    lsof -i | grep -i estab
    P17 · 2009-05-06 17:45:55 15
  • I have a bash alias for this command line and find it useful for searching C code for error messages. The -H tells grep to print the filename. you can omit the -i to match the case exactly or keep the -i for case-insensitive matching. This find command find all .c and .h files Show Sample Output


    33
    find . -name "*.[ch]" -exec grep -i -H "search pharse" {} \;
    bunedoggle · 2009-05-06 15:22:49 26
  • Aureport is a tool for displaying auditd system log. -x options cause to display launched executable on system. Aureport work with auditd so auditd must be installed an running on a system. Tested on CentOS / Debian Show Sample Output


    1
    aureport -x
    servermanaged · 2009-05-06 11:42:12 4
  • Please take notice that if you are going to use an JPG file for shadow effect, let change -background none to -background white! Because -background none make a transparent effect while JPG doesn't support transparent! And when viewing, you will get a bacl box! So we will use an white background under! We can use other color as well!


    7
    convert {$file_in} \( +clone -background black -shadow 60x5+10+10 \) +swap -background none -layers merge +repage {$file_out}
    kureikain · 2009-05-06 10:19:39 13
  • rotate: the rotate angle width, $height: width and height to scale to birghtness: change brighness


    4
    convert -rotate $rotate -scale $Widthx$Height -modulate $brightness -contrast $contrast -colorize $red%,$green%,$blue% $filter file_in.png file_out.png
    kureikain · 2009-05-06 10:14:22 4
  • The colors are defined as variables. e.g. RED="\[\033[01;31m\]" BLUE="\[\033[01;34m\]" Show Sample Output


    -3
    PS1="$BLUE[$CYAN\u$BLUE@$CYAN\h$WHITE-bash \v:$GREEN\w$BLUE]$WHITE \$ "
    P17 · 2009-05-06 08:01:06 6

  • 5
    ip route show dev ppp0 | awk '{ print $7 }'
    williamruckman · 2009-05-06 02:07:57 7
  • Runs an instance of screen with name of "name_me" and command of "echo "hi"" To reconnect to screen instance later use: screen -r name_me


    3
    screen -dmS "name_me" echo "hi"
    williamruckman · 2009-05-06 02:04:15 4
  • While I love gpg and truecrypt there's some times when you just want to edit a file and not worry about keys or having to deal needing extra software on hand. Thus, you can use vim's encrypted file format. For more info on vim's encrypted files visit: http://www.vim.org/htmldoc/editing.html#encryption Show Sample Output


    88
    vim -x <FILENAME>
    denzuko · 2009-05-05 23:24:17 28
  • This prints a summary of your referers from your logs as long as they occurred a certain number of times (in this case 500). The grep command excludes the terms, I add this in to remove results Im not interested in. Show Sample Output


    1
    awk -F\" '{print $4}' *.log | grep -v "eviljaymz\|\-" | sort | uniq -c | awk -F\ '{ if($1>500) print $1,$2;}' | sort -n
    jaymzcd · 2009-05-05 22:21:04 4
  • I use this (well I normally just drop the F=*.log bit and put that straight into the awk command) to count how many times I get referred from another site. I know its rough, its to give me an idea where any posts I make are ending up. The reason I do the Q="query" bit is because I often want to check another domain quickly and its quick to use CTRL+A to jump to the start and then CTRL+F to move forward the 3 steps to change the grep query. (I find this easier than moving backwards because if you group a lot of domains with the pipe your command line can get quite messy so its normally easier to have it all at the front so you just have to edit it & hit enter). For people new to the shell it does the following. The Q and F equals bits just make names we can refer to. The awk -F\" '{print $4}' $F reads the file specified by $F and splits it up using double-quotes. It prints out the fourth column for egrep to work on. The 4th column in the log is the referer domain. egrep then matches our query against this list from awk. Finally wc -l gives us the total number of lines (i.e. matches). Show Sample Output


    0
    Q="reddit|digg"; F=*.log; awk -F\" '{print $4}' $F | egrep $Q | wc -l
    jaymzcd · 2009-05-05 21:51:16 6
  • there is no explicit find command in DOS you can create a batch file with this one and find all jpegs on the C drive ... note: if creating a batch file "find.bat" the syntax changes to: for %%f in (c) do dir %%f:\%1 /s /p you can then use find *.jpg Show Sample Output


    -5
    for %f in (c) do dir %f:\*.jpg /s /p
    copremesis · 2009-05-05 18:28:18 11
  • It's like `prstat -t` under Solaris Show Sample Output


    1
    ps -eo user,pcpu,pmem | tail -n +2 | awk '{num[$1]++; cpu[$1] += $2; mem[$1] += $3} END{printf("NPROC\tUSER\tCPU\tMEM\n"); for (user in cpu) printf("%d\t%s\t%.2f%\t%.2f%\n",num[user], user, cpu[user], mem[user]) }'
    feraudet · 2009-05-05 16:54:25 4
  • Reads in the ~/.Xdefaults lexicographically sorted with, instead of replacing, the current contents of the specified properties.


    0
    alias xdef_load='xrdb -merge ~/.Xdefaults'
    P17 · 2009-05-05 16:34:06 8

  • -9
    alias b='cd -'
    P17 · 2009-05-05 16:21:22 6
  • Since bash 4.0, you can use ** to recursively expand to all files in the current directory. This behaviour is disabled by default, this command enables it (you'd best put it in your .profile). See the sample output for clarification. In my opinion this is much better than creating hacks with find and xargs when you want to pass files to an application. Show Sample Output


    11
    shopt -s globstar
    Alanceil · 2009-05-05 16:02:44 8
  • You can use this on your session login.


    6
    VBoxManage startvm "name"
    o6291408 · 2009-05-05 13:23:26 6
  • Simple but useful command, I use this for purge an hard disk entry in Virtualbox registry file (is in ~user/.Virtualbox) that persist if I erase a Virtual Machine, so I need to delete it manually.


    -3
    sed -i '/Centos/d' VirtualBox.xml
    servermanaged · 2009-05-05 13:03:55 6
  • This is the alias command that I discussed in my prior release which you can add to your ~/.bashrc. This command asks for the station name and then connects to somafm, Great for those who have linux home entertainment boxes and ssh enabled on them, just for the CLI fiends out there ( I know I'm one of them ;) You can find future releases of this and many more scripts at the teachings of master denzuko - denzuko.co.cc.


    -2
    alias somafm='read -p "Which station? "; mplayer --reallyquiet -vo none -ao sdl http://somafm.com/startstream=${REPLY}.pls'
    denzuko · 2009-05-05 12:13:46 3
  • This is a working version, though probably clumsy, of the script submitted by felix001. This works on ubuntu and CygWin. This would be great as a bash function, defined in .bashrc. Additionally it would work as a script put in the path. Show Sample Output


    0
    lynx -dump randomfunfacts.com | grep -A 3 U | sed 1D
    xizdaqrian · 2009-05-05 07:52:10 12
  • This command might not be useful for most of us, I just wanted to share it to show power of command line. Download simple text version of novel David Copperfield from Poject Gutenberg and then generate a single column of words after which occurences of each word is counted by sort | uniq -c combination. This command removes numbers and single characters from count. I'm sure you can write a shorter version. Show Sample Output


    -4
    wget -q -O- http://www.gutenberg.org/dirs/etext96/cprfd10.txt | sed '1,419d' | tr "\n" " " | tr " " "\n" | perl -lpe 's/\W//g;$_=lc($_)' | grep "^[a-z]" | awk 'length > 1' | sort | uniq -c | awk '{print $2"\t"$1}'
    alperyilmaz · 2009-05-04 16:00:39 11
  • This command is useful if you accidentally untar or unzip an archive in a directory and you want to automatically remove the files. Just untar the files again in a subdirectory and then run the above command e.g. for file in ~/Desktop/temp/*; do rm ~/Desktop/`basename $file`; done


    11
    for file in <directory A>/*; do rm <directory B>/`basename $file`; done
    jamiebullock · 2009-05-04 12:44:50 14
  • Retrieve the current stock price from Yahoo Finance. The output is simply the latest price (which could be delayed). If you want to look up stock for a different company, replace csco with your symbol. Show Sample Output


    11
    curl -s 'http://download.finance.yahoo.com/d/quotes.csv?s=csco&f=l1'
    haivu · 2009-05-04 08:13:59 28
  • The nl command lists the contents of a file where is each line is prefixed by a line number. For more information about this command, check out its man page. I tested under Mac OS X and Xubuntu 9.04


    -2
    nl filename | more
    haivu · 2009-05-04 07:35:16 11
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Get your bash scripts to handle options (-h, --help etc) and spit out auto-formatted help or man page when asked!!
This will make your bash scripts better!! process-getopt is a wrapper around getopt(1) for bash that lets you define command line options (eg -h, --help) and descriptions through a single function call. These definitions are then used in runtime processing of command line options as well as in generating help and man pages. It also saves a little time in coding and in producing nicely formatted documentation. It is quite similar to GNU's argp in glibc for compiled languages and OptionParse for python. See: Linux Gazette article 162: http://tldp.org/LDP/LGNET/162/hepple.html, http://sourceforge.net/projects/process-getopt, http://bhepple.freeshell.org/oddmuse/wiki.cgi/process-getopt

On-the-fly unrar movie in .rar archive and play it, does also work on part archives.

Unaccent an entire directory tree with files.
This command changes all filename and directories within a directory tree to unaccented ones. I had to do this to 'sanitize' some samba-exported trees. The reason it works might seem a little difficult to see at first - it first reverses-sort by pathname length, then it renames only the basename of the path. This way it'll always go in the right order to rename everything. Some notes: 1. You'll have to have the 'unaccent' command. On Ubuntu, just aptitude install unaccent. 2. In this case, the encoding of the tree was UTF-8 - but you might be using another one, just adjust the command to your encoding. 3. The program might spit a few harmless errors saying the files are the same - not to fear.

Display condensed log in a tree-like format.
Display condensed log in a tree-like format.

Find the package that installed a command

grep apache access.log and list IP's by hits and date - sorted

pinky - user info
Gives information about user's home directory and real name and shell user is having.

Shows what processes need to be restarted after system upgrade
This command can be installed in debian by the package debian-goodies. It also outputs the /etc/init.d/ commands that you need to do.

Alias for lazy tmux create/reattach

Copy all files. All normal files, all hidden files and all files starting with - (minus).
./* is for copying files starting with - .[!.]* is for copying hidden files and avoiding copying files from the parent directory. ..?* is for copying files starting with .. (avoids the directory ..) /path/to/dir the path to the directory where the files should be copied Can also be used as a script. Input argument is /path/to/dir in tcsh, replace .[!.]* with .[^.]*


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