Linux Shell QuickStart Small example (Shell 13 ask learning note)

Read the CU forum Shell 13 After a few small experiments, prepare to forget!

Shell 13 Q Address: http://bbs.chinaunix.net/thread-218853-1-1.html

#!/bin/bashfunction func_com () {Local a=1 local b= "2c3" Echo ${a}b echo $ab}function Func_arra Y () {echo "##### func_array #####" local path= "/home/stone" source $PATH/include/tt.ini #echo $name Local srand= (1 3 5 2) Local srand_num=${#srand [*]} for ((i=0;i< $srand _num;i++));d o Ech O $ ((srand[i]+age)) done echo "##### func_array #####"}function func_for () {echo "##### func_for # # # # # # # # "Local bin_path="/usr "local array= (2 3 5 7 9) Local array_n=${#array [*]} for dir in $ (LS $b        In_path);        Do echo $dir the Done for ((i=0;i< $array _n;i++)); Do echo ${array[i]} done echo "##### func_for #####"}function Func_getlen () {echo "$#"}functio         n Func_param () {echo "##### Func_len \[email protected] #####" Func_getlen "[email protected]" echo "##### Func_len \[email protected] ##### "echo" ##### func_len \$* ##### "Func_getlen" $* "echo" ##### func_len \$* ##### "}function Func_calc () {echo "##### func_calc \$* #####" local a= $RANDOM local b=4 local c=8 d=$ (        (A+B)) echo $d e= ' expr $a + 7 ' echo $e echo "##### func_calc \$* #####"}function func_exit () {local S        tr1= "ABC" Local Str2= "Def" echo $str 1 Exit 0 echo $str 2}function func_if () {Local a=1        Local b=3 local str= "abc" if [! $a =1];then echo "equal" elif [[$STR = "abc"]]        then echo "str equal" else echo "Else" fi}function Func_read () {  Op= "" While [[$op! = "Q"]] do read-p "input one word ' a,b,q '!" Op case $op                In a) echo "The word is $op";;                b) echo "B";;         Q       exit;;                *) echo "Input err!" Esac done}function func_getopt () {args= "' Getopt-u-o" ht:a:n: "-L" Help,time:,age:,number: "--" [Email&nbs         P;protected] "'" [$?-ne 0] && usage set--${args} while [true];                        Do case $ in-h|--help) usage shift                ;;                -t|--time) echo "Time is $" shift;                -a|--age) echo "Age is $" shift;                -n|--number) echo "number is $" shift;                --) shift break;;        *) usage;;     Esac   Shift Done}main () {func_com #func_for #func_array #func_param 1 a 2 b #func_c ALC #func_exit #func_if #func_read #case while getopt #func_getopt-T 20150320-a 25- -number 88}main

Linux Shell QuickStart Small example (Shell 13 ask learning note)