How do you use rex to slice a string up to the white space

[madisonf15]

I have a string called PGM_NM. The contents of PGM_NM are "AE248 \AX0\AX0". I want to use the rex function to slice the PGM_NM string to just be AE248. So essentially I want to slice the string up to the whitespace. Thanks!

[somesoni2]

Other options

your base search | eval PGM_NM=mvindex(split,PGM_NM," "),0) 

your base search | eval PGM_NM=replace(PGM_NM,"^(\S+)(.*)","\1")

[muebel · Accepted solution]

Hi madisonf15,

This should work:

<generating search> | rex field=PGM_NM "(?<value>[\S]+)\s.*"

Please let me know if this answers your question!

[madisonf15]

I used PGM_NM as the value and it worked perfectly. Thank you very much!