if((i%2==1)); then    patern="Update"else    patern="Read"fi

case $1 in"-h")    if [ $# -lt 2 ]        then            helpInfo    else        errorUse $@    fi    ;;"-d")    if [ $# -lt 2 ]        then            noDirectory    elif [ $# -gt 2 ]        then            errorUse $@    else        DIR=$2    fi    ;;*)    errorUse $@    ;;esac

 

for i in `seq 10`do...done

------------------->$ seq 212

------------------->$ seq 1 3123

------------------->$ seq 1 2 5135

 

------------------->$ for i in {
   1..3}; do echo "$i"; done123