Shell Script 初學

[user]conf$ cat php.ini | wc -l
1299

a=1
b=2
c=3
 
if [ "$a" -lt "$b" ]; then
    echo "$a is smaller then $b";
fi
 
if [ "$c" -gt "$b" ]; then
    echo "$c is bigger then $b";
fi

for i in 1 2 3 4 5 6 7 8 9 10
do
    echo -n "...$i"
done

data="a apple a day keeps the doctor away"
echo "${data:2:5}"
echo "${data:10:3}"

r_file(){
    dir=$1
    files=$dir/*
    for filename in $files
    do
        if [ -d $filename ]; then
            echo $filename
            r_file "$filename"
        elif [ -f $filename ]; then
            echo $filename
        else
            #echo "not file" $filename
            echo ""
        fi
    done
}
r_file /home/

echo -e '\x61\x62' > tmp