Regular expression for replacing the strings in powershell

Question

I have certain strings as given below

PS C:\Users> $S1="PS CUT (ZIP ONLY),  ALWAYS chose for MARTIO"
PS C:\Users> $s2="ZINO-IAS CUT"
PS C:\Users> $s3="ZINO-IPS CUT 2"
PS C:\Users> $s4="ZINO-IAS CUT4"
PS C:\Users> $s5="ZINO-IPS"

I want to replace above strings from the word CUT itself as given below

PS
ZINO-IAS
ZINO-IPS2
ZINO-IAS4
ZINO-IPS

Plase not that if there is a number after word CUT we are not removing that.

i tried the following code but it doesn't worked

PS C:\Users> $s5 -replace "CUT\s*\w*",""

arco444 · Accepted Answer · 2014-05-07 11:38:29Z

1

The regex you need is:

"\s*CUT\s*(\d+)?.*","`$1"

It checks for an optional number that comes after CUT and any spaces and uses that as the replacement (represented by $1). If the number doesn't exist, it replaces the entire match with an empty string.

Result:

[PS]> $s1 -replace "\s*CUT\s*(\d+)?.*","`$1"
PS
[PS]> $s2 -replace "\s*CUT\s*(\d+)?.*","`$1"
ZINO-IAS
[PS]> $s3 -replace "\s*CUT\s*(\d+)?.*","`$1"
ZINO-IPS2
[PS]> $s4 -replace "\s*CUT\s*(\d+)?.*","`$1"
ZINO-IAS4
[PS]> $s5 -replace "\s*CUT\s*(\d+)?.*","`$1"
ZINO-IPS

edited May 7, 2014 at 11:38

answered May 7, 2014 at 11:10

arco444

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