105 lines
1.4 KiB
Plaintext
105 lines
1.4 KiB
Plaintext
1/
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a)
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x=7;for ((i=1;i<=x;i++)); do echo $i; done
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b)
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#!/bin/bash
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if [[ $# -lt 1 ]]
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then
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echo " Usage : $0 "
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exit
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fi
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if [[ $1 -lt 0 ]]
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then
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echo " Argument must be positive ! "
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exit
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fi
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for (( i=1 ; i<= $1 ; i++))
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do
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echo $i
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done
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exit
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2/
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#!/bin/bash
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if [[ $# -lt 2 ]]
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then
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echo " Usage : $0 <NUM_ARG1> <NUM_ARG2>"
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exit
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fi
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if [[ $1 -lt 0 ]]
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then
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echo " Arg1 must be positive ! "
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exit
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fi
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if [[ $2 -lt 0 ]]
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then
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echo " Arg2 must be positive ! "
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exit
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fi
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if [[ $1 -gt $2 ]]
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then
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echo " Arg1 must be less than Arg2 !"
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exit
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fi
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for (( i = $1 ; i <= $2 ; i++))
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do
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for (( j = $1 ; j <= $2 ; j++))
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do
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echo -n $(( i * j ))
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echo -ne $"\t"
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done
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echo -e $"\n"
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done
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exit
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3/
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a)
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#!/bin/bash
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if [[ $# -lt 2 ]]
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then
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echo " Usage : $0 <SCR_FILE> <DEST_FILE>"
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exit
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fi
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if [[ ! -f $1 ]]
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then
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echo " FILE $1 Does not exist!"
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exit
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fi
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if [[ -f $2 ]]
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then
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echo -n " FILE $2 already exists. Overwrite ? Yes/No --> "
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read answer
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if [[ $answer != "Yes" ]]
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then
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exit
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fi
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cp /dev/null $2
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fi
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for addr in $(cat $1)
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do
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x=$(expr substr $addr 1 8)
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y=$(expr substr $addr 9 8)
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z=$(expr substr $addr 17 8)
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t=$(expr substr $addr 25 8)
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echo "$((2#$x)).$((2#$y)).$((2#$z)).$((2#$t))" >> $2
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done
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exit
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b)
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1) read x; echo "$? x=$x" affiche : 0 x=7
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2) read x; echo "$? x=$x" affiche : 0 x=
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3) read x; echo "$? x=$x" affiche : 1 x=
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read permet d'initialiser une valeur dans une variable |