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Difference between revisions of "Linux"

From ACL@NCU

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* Extract a substring [http://www.starlink.rl.ac.uk/docs/sc4.htx/node38.html]
* Extract a substring [http://www.starlink.rl.ac.uk/docs/sc4.htx/node38.html]


Translation between bash and tcsh [http://joelinoff.com/blog/?page_id=235]
* Translation between bash and tcsh [http://joelinoff.com/blog/?page_id=235]


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Revision as of 02:15, 5 May 2013

Useful tcsh and python commands

tcsh

  • Find files

with defined stem pattern under multiple different folder

find */*/*anat+tlrc.*
  • find files with a suffix recursively under subdirectories
find . -name \*.mgz -print
  • delete or copy filenames from a "pattern" search
rm `find */*/*anat+tlrc.*`
  • comment multiple lines
:<<LABEL
comment line #1
comment line #2
comment line #3
...
comment line #final
LABEL
  • Extract a substring [1]
  • Translation between bash and tcsh [2]

file system

  • Determine file creating and modification times [3]
stat *

Network Connection

  • Blocking a port [4]
sudo ufw deny 80

other ufw usage [5]

  • Scanning available ports
nmap -PS <IP address>
  • Scanning all available IPs in subnet
nmap -sP 192.168.1.0/24
  • restart network GUI (allow the top-left icon of network to show up)
sudo service network-manager restart

Install new packages

sudo apt-get install python-pip python-dev build-essential 
sudo pip install --upgrade pip 
sudo pip install --upgrade virtualenv