CODEWITHSUNDEEP
grepexpect
blue_xylo
blue_xylo

Reputation: 117

setting expect variable with grep output

I use an expect script to login to a remote server; to do so, I need to set up 2 variables: 

set username <user>
set password <passwd>

I grep user & passwd from a file. How to set up expect variable with grep ouptut?

when I try: 

set username "grep '(?<=username:)[^<]*' file"
set password "grep '(?<=password:)[^<]*' file"

expect says:

invalid command name "^<" while executing "^<" invoked from within

"send "grep -oP '(?<=username:)[^<]*' file""

(file "./test" line 11)

when I try: 

set username "grep -oP '(?<=username:)[\^\<]*' file)"

expect says:

can't read "(grep -oP '(?<=username:)":

no such variable while executing

"send "$(grep -oP '(?<=username: )[\^\<]*' file)""

(file "./test" line 11)

I am just wondering what could be the correct syntax.

Upvotes: 1

Views: 697

Answers (1)

glenn jackman
glenn jackman

Reputation: 246774

You'll want something like this:

set fid [open file r]
set contents [read $fid]
close $fid
lassign [regexp -inline {username:([^<]+)} $contents] x username
lassign [regexp -inline {password:([^<]+)} $contents] x password

You're having a hard time with Tcl syntax, so start with the Tcl tutorial.

Upvotes: 2

Related Questions