Use of shell arrays

Definition: array= (1 2 3)

Echo ${array[0]}

Echo ${array[1]}

Echo ${array[2]}

echo ${array[*]} all elements

Echo ${array[@]} The length of the array

Array Assignment

Array= (1 2 3) There are 3 elements in this array

Array[3]=4 4 elements in this array

Delete

unset array[0] removed the No. 0 element

Intercept

Array= (1 2 3 4 5)

${array[@]:1:3} intercept number 1th to 3rd

Results 2 3 4

Echo ${array[@]:3:2}

Results 4 5

Array substitution

Echo ${ARRAY[@]/5/6} Replaces 5 in the array with 6, temporarily in effect, and the element family has not been modified

Results 1 2 3 4 6

Turn the result into an array

array= ($ (LS))

Print

All elements ${array[@]} or ${array[*]}

Array length ${#array [@]} or ${#array [*]}

Single element ${array[i]}

Using an example of an array,

gamelist=${pwd}/gamelist forPidinch`awk '{print $7}'$gamelist ' DoPingtai=`awk '/\<" "$pid" "\>/{print $4}'$gamelist ' Daqu=`awk '/\<" "$pid" "\>/{print $6}'$gamelist ' Destdir=${pingtai}cq_lycqly_s$daqu dbname=${pingtai}cq_s$daqu Dbip=`awk '/\<" "$pid" "\>/{print}'$gamelist ' array=($(awk '/\<" "$pid" "\>/{print}'$gamelist))  forIinch{0..2}                                     DoLanip=`Echo${array[i]}|Cut-D:-F1 ' Port=`Echo${array[i]} |Cut-D:-F2 'Echo${array[*]}Echo---------------------------------------------------------------# array=($(Echo${array[@]:1}))                                        Echo$lanipEcho--------------------------------------------------------------Echo$port Done                                 Done

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Use of shell arrays