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Validate username in tcl

Validate username in tcl

Validate username in tcl


I have a script that will add usernames into a permitted list.

Before adding it i would like to check if that username is really existed in my unix machine or not.

if it is shell scripting i can use id -a username and see exit status of that.

Could somebody tell how to do that in tcl script ?

Thanks inadvance


RE: Validate username in tcl

Will a user have a home directory?
If so, you can use "file exists <pathname>" or "file isdirectory <pathname>"

Bob Rashkin

RE: Validate username in tcl


Are you talking about system users ? I would simply read /etc/passwd :

CODE --> Tcl

set fil [open "/etc/passwd"]
while {[gets $fil line]>=0} {
  if {[lindex [split $line ":"] 0]=="Kamma"} {
    puts "User found"
close $fil


RE: Validate username in tcl

Thanks a lot.

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