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Bash regex (Sarge)

Mon, 23 Dec 2024 09:16:47 GMT

>[�� ]
> o-wor
> STRING='/home/user/qwe123'
> var1=${STRING//[^0-9]/}
> var2=${STRING%"$var1"}
> echo $var1
> echo $var2
> -----------
> 123
> /home/user/qwe
> -----------

�ӣ ��, ��

Bash regex (shadow_alone)

Thu, 19 Dec 2024 22:44:46 GMT

$ prefix="hell"
$ suffix="ld"
$ string="hello-world"
$ foo=${string#"$prefix"}
$ foo=${foo%"$suffix"}
$ echo "${foo}"
o-wor

STRING='/home/user/qwe123'
var1=${STRING//[^0-9]/}
var2=${STRING%"$var1"}
echo $var1
echo $var2
-----------
123
/home/user/qwe
-----------

Bash regex (Sarge)

Thu, 19 Dec 2024 16:44:59 GMT

>[�� ]
>> �� 2 �� :
>> a='/home/user/qwe' b='123'
>> a='/home/user/asd' b='456'
>> a='/home/user/zxc' b='789'
>> ��
>> STRING='/home/user/qwe123'
>> echo ${STRING//[^0-9]/}
>> 123
>> ��
> �� ݣ � A-Za-z

a-z �� , �� ݣ / �� , �� . �� homeuserqwe

Bash regex (pavel_simple.)

Thu, 19 Dec 2024 15:30:14 GMT

>[�� ]
> /home/user/zxc789
> �� 2 �� :
> a='/home/user/qwe' b='123'
> a='/home/user/asd' b='456'
> a='/home/user/zxc' b='789'
> ��
> STRING='/home/user/qwe123'
> echo ${STRING//[^0-9]/}
> 123
> ��

�� ݣ � A-Za-z