correction.md

Open Up! mid term exam correction

Unix commands

-Question 1 :

find * -name "*.html" -exec sed -i -e 's/3.0.0-beta5/3.0.0-beta6/g' {} \;

-Question 2 :

benwa@horizon ~/Documents/linagora/open-up/s01/e08 (git)-[master] % wc * -l |tail -n 1 | tr -s ' ' | cut -d ' ' -f 2
36

Scripting

• Question 1 :

#!/bin/bash

mkdir java
mkdir c_plus_plus

• Question 2 :

#!/bin/bash

mkdir java || true
mkdir c_plus_plus || true

• Question 3 :

#!/bin/bash

function classify {
  mkdir -p $1

  grep -l $1 * > tmp.txt 

  while read p; do
    mv $p $1
  done <tmp.txt

  rm tmp.txt || true
}

classify java
classify c_plus_plus

• Question 4 :

#!/bin/bash

function classify {
  mkdir -p $1

  if [ "$1" == "-R" ]; then
    grep -r -l $1 * > tmp.txt 
  else
    grep -l $1 * > tmp.txt 
  fi

  while read p; do
    mv $p $1
  done <tmp.txt

  rm tmp.txt || true
}

classify java
classify c_plus_plus