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1st day: user registration

Week	Day	Description	Tutor
1	1	Linux Shell Tutorial or Adv. Scripting	Tamás
1	2	* Basic HPC introduction	Gábor
1	3	* SLURM (HPL job test)	Gábor
1	4	* ARC middleware (HPL job test)	Gábor
1	5	* VirtualGL/TurboVNC	Gábor
2	1	Quantum Espresso	Tamás
2	2	Quantum Espresso	Tamás
2	3	Siesta	Tamás
2	4	Siesta	Tamás
2	5	VMD	Tamás
3	22 July	Compiling and inputs
4	29 July	Benchmarking and GPUs
5	5 Aug	Calculations
6	12 Aug	Analysis
7	18 Aug	Visualization
8	26 Aug	Video and report

module and environment

Try to use Bash, always, as simplw as possible!

Advanced Bash Scripting

#!/bin/sh
#!/bin/bash
#!/usr/bin/perl
#!/usr/bin/tcl
#!/bin/sed -f
#!/bin/awk -f
#!/usr/bin/env python
#!/bin/rm
#!/bin/more
...

If you have several versions of Python installed, /usr/bin/env will ensure the interpreter used is the first one on your environment's $PATH.

Special characters

:() {
  echo "The name of this function is "$FUNCNAME"
  # Why use a colon as a function name?
  # It's a way of obfuscating your code.
}

Namespaces and libraries

function mother/child/func
mother_child_func
./mother/child/func

Do$$ar is what I need

$* $! $? $$ $@ ${} $() a=${!b} {}

Subshells

a=${(which top):-/bin/top}
(( var0 = var1<98?9:21 ))

Blockparty and arrays

Array=(element1 element2 element3)
echo {file1,file2}\ :{\ A," B",' C'}
ls . | xargs -i -t cp ./{} $1

Test test test

[] [[]] $[] (())

Redirections (here documents)

< > << >>

History cheat sheet and bash history tagging

Variables

b=${a/23/BB}
a=${!b}
b=${a##c}
a=$(ls)

Variable scopes

export local shift $0 $1 $*

Exit codes

exit return

_true_=0
_false_=1
function failed(){ return ${_false_}; }
function success(){ return ${_true_}; }
if success ; then echo success; fi

Operators. Valid to use constructs like @@core.

ns_op="< + -"
failure="return ${_false_}"
success="return ${_true_}"

function ns/op() {
  local _s="${1}"
  local _m="${2}"
  if empty "${_m}" ; then
    _m="${ns_op}"
  fi

  local o
  for o in ${_m} ; do
    if test "${_s:0:1}" = "${o}" ; then
      $success
    fi
  done
  $failure
}

Environment variables and functions

nce
echo $PS1
set

Use the source Luke!

source $(dirname $0)/../../bin/functions

TAB complete, rvm prompt.

Shell options

while getopts hvb: o; do
  case "$o" in
    b) _m="CREATE"; _b=$OPTARG;;
    v) gdbg=true;;
    h|*) help/bmkmgr;;
  esac
done

Find arghhh

find ~/ -name '*.txt'
find ~/mail -type f | xargs grep "Linux"

Text processing

Archiving

tar [gb]zip diff md5 pv

Fuuuuuuu

Math

var3=$(bc -l << EOF
scale = 9
s ( 1.7 )
EOF
)

Regular expressions

IO redirections

On more thing, the most important thing!

Walk the walk repl the repl or write frameworks

cat << EOF > "${rc}"
source $(dirname ${BASH_SOURCE})/../lib/header
export PS1='SHF3(\$?)> '
import gui
gui/txt "Shell Framework 3 Console" "white"
check
EOF
bash --noprofile --rcfile "${rc}"

SSH rsync parallel rsync measure time