There's probably a more elegant way but you could echo it to grep and test the return value? [wmcdonald@willspc ~]$ set numval=13 [wmcdonald@willspc ~]$ echo $numval 13 [wmcdonald@willspc ~]$ echo $numval | egrep '[:alpha:]|[:cntrl:]|[:graph:]|[:punct:]' [wmcdonald@willspc ~]$ echo $? 1 [wmcdonald@willspc ~]$ echo $shell /bin/tcsh [wmcdonald@willspc ~]$ Wrap that in some shell logic and you should be sorted. I don't really do csh but in sh/ksh/bash you could do something like... if (echo $variable | egrep '[:alpha:]|[:cntrl:]|[:graph:]|[:punct:]') then # variable's not numeric echo "Variable $variable is NOT numeric" else # It's numeric (or null, you'll need to test for that too) echo "Variable $variable is numeric." fi Will. On 14/07/05, Christopher L Judd <clj2289@xxxxxxxxxxxxxxxxxxx> wrote: > Would anyone know how to determine if a variable in the csh shell is > numeric or string? > > Thanks, > Chris > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
