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• How to Work With MongoDB's Shell Interface

  

  By chco : 02 May 2011 - 10:20 AM

  This excerpt covers some operational aspects of running a cluster. Once you have a cluster up and running, how do you know what’s going on? Below we have some information from the O'Reilly publi...

  Tags:

  • mongodb
  • database
  • shell
  • cluster

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• Built-in bash Shell Variables

  

  By adfm : 14 May 2010 - 04:05 PM

  bash has long been the go-to shell for quick one-off scripts. If you're in the midst of writing such a script and could use a handy reference of the built-in shell variables, than this excerpt from ...

  Tags:

  • bash
  • shell
  • scripting
  • variables

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• Keep SSH Sessions Active, Or Reconnect?

  

  By lazyweb : 04 February 2010 - 04:43 PM

  Over on Slashdot user borjonx writes "Is it safer to log out of an SSH session, and re-establish it later, or just keep the connection open? Like many of you, I use OpenSSH to connect to my Slack...

  Tags:

  • ssh
  • shell
  • bash
  • cli
  • security

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• How to Clean Up after a Tarball or Zipball Explodes

  

  By mike-loukides : 29 January 2010 - 05:53 PM

  Don't you hate it when someone sends you a big fat tar or zip file full of lots of files, and didn't bother to put everything in one folder? If you extract it unawares, you get dozens--maybe ...

  Tags:

  • zip
  • tar
  • bash
  • shell
  • jar

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• "Traditional" loops in shell scripts

  

  By mike-loukides : 06 December 2009 - 12:21 PM

  How do you write a "traditional" loop (say, to go through some block of code 25 times) in a Unix shell script? In bash, it's simple: for ((i = 0; i < 25; i++ )) do ... done You...

  Tags:

  • loop
  • shell
  • unix

  0Votes

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• shell programming for loop

  Asked by dondasanjay : 27 November 2009 - 08:31 PM

  

  Answered by KBenson : Nov 29 2009 09:55 PM
  For bash: Use double parenthesis to indicate you want ARITHMETIC EVALUATION (see the bash man page) if you are looking for a traditional C-style loop: $ for ((i=1; i<10; i++)); do echo $... full answer >

  Tags:

  • for loop
  • programming
  • shell

  1Answer

  0Comments

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• How to use and understand "whois" in its many forms

  

  By tcpiplab : 16 October 2009 - 05:19 PM

  The whois command line utility, available on all modern Unix and Linux variants, can be a fast, concise, and scriptable way to identify unknown and distant hosts, networks, and even netadmins. By the ...

  Tags:

  • whois
  • ip addresses
  • shell
  • dns
  • routing
  • bgp

  4Votes

  1Comment

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• How to Deal with Spaces and Odd Characters in Filenames

  

  By tietack : 12 October 2009 - 01:00 PM

  Sometimes, the defaults associated with Linux shells are annoying. For example, the spaces associated with many Microsoft directories, such as My Directory, can adversely affec...

  Tags:

  • linux
  • shell
  • grep

  0Votes

  0Comments

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