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#!/bin/bash

# what real Python executable to use
PYVER=2.7
PATHTOPYTHON=/usr/local/bin/
PYTHON=${PATHTOPYTHON}python${PYVER}

# find the root of the virtualenv, it should be the parent of the dir this script is in
ENV=`$PYTHON -c "import os; print os.path.abspath(os.path.join(os.path.dirname(\"$0\"), '..'))"`

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#! /bin/bash

# meq = multi-line eq
# See https://github.com/jonase/eq#eq-edn-query

EQ=eq
while read line; do echo "$line" | $EQ $@ ; done

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sort-by

Usage

cat ... | sort-by your command ...

Example

$ cat toto.jsons 

{"a": 1, "b": 2}

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Perl:

"test" =~ s/(.*)$/\1s/gr # => "testss

Ruby (same engine as Perl):

"test".gsub(/(.*)$/, "\\1s") # => "testss"

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Keybase proof

I hereby claim:

• I am bfontaine on github.
• I am bfontaine (https://keybase.io/bfontaine) on keybase.
• I have a public key ASAbQaOETWTGegk7J5bi8AaCgRwog0wUtbAarRRH4cL_Jwo

To claim this, I am signing this object:

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Estimate the number of lines in a large file

Get the size of the file:

$ wc -c myfile.jsons
104431233268 myfile.jsons

Then pipe it through head to take only e.g. 1/1000th of the file:

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G={}
for L in open("T"):a,b=L[5::31];G={a:set(),**G};G[b]=G.get(b,{a})|{a}
while G:C=min(c for c in G if not G[c]);G={c:G[c]-{C}for c in G if c!=C};print(C,end="")

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#! /bin/bash -e
# https://wiki.panotools.org/Panorama_scripting_in_a_nutshell
# http://hugin.sourceforge.net/tutorials/scans/en.shtml

# This is a tool to vertically stitch together screenshots of black and white
# scans.
#
# Install:
#
#   brew cask install hugin

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# HAR to EditThisCookie converter

def domain:
  .url
  | sub("^https?://"; "")
  | sub("/.*"; "");

def cookies:
  domain as $d
  | .cookies|map(. + {"domain": $d,

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# save 1 char by using 'for' instead of 'while'
x=42;while(c)
for(x=42;c;)

# save 1 char by using a missing variable instead of ""
split($0,b,"")
split($0,b,X)

# use ternary operations when possible
if(c)a else b