Question

unix interactive command

Asked by: hans_ryder

hi all,
  i need to know is there any way to automate interactive command such as passwd. instead you have to keyin everytime login and passwd when want to change it using a script to do it.

thanks in advances

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Asked On
2000-09-19 at 19:03:54ID11321957
Topic

Unix Systems Programming

Participating Experts
4
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Answers

 

by: gurpreetsPosted on 2000-09-20 at 00:09:15ID: 4367676

you can use expect for this

 

by: hans_ryderPosted on 2000-09-20 at 01:46:43ID: 4368794

what is espect? can you tell in detail or roughly idea about it.

tx

 

by: gurpreetsPosted on 2000-09-20 at 02:46:34ID: 4369261

expect can be used for making interactive scripts(like telnet, ftp). It is used in combination with tcl / tk.

 

by: akehPosted on 2000-09-20 at 20:54:31ID: 4382474

 

by: gurpreetsPosted on 2000-09-20 at 22:08:43ID: 4382905

U can use a script like this -

#!/usr/local/bin/expect
set timeout -1
spawn ftp <Server-Name>
expect "Name"
send "<user-id>\r"
expect "Password:"
send "<passwd>\r"
expect "ftp>"
interact

 

by: hans_ryderPosted on 2000-09-20 at 23:26:55ID: 4383443

i got an error when try to install expect.

# ./configure
configuring Expect 5.32.1
checking for autoconf... no
checking configure up to date... yes
checking host system type... sparc-sun-solaris2.5.1
checking target system type... sparc-sun-solaris2.5.1
checking build system type... sparc-sun-solaris2.5.1
checking shell to use within Make...
checking for gcc... gcc
checking whether the C compiler (gcc  ) works... yes
checking whether the C compiler (gcc  ) is a cross-compiler... no
checking whether we are using GNU C... yes
checking whether gcc accepts -g... yes
checking for building with threads... no (default)
checking for Tcl configuration... found /data/temp/tcl8.3.2/unix/tclConfig.sh
checking Tcl build library... -L/data/norehan/tcl8.3.2/unix -ltcl8.3 -ldl  -lm
checking for Tcl_CreateCommand... no
checking if Tcl library build specification is valid... no
checking for Tk configuration... configure: warning: Can't find Tk configuration definitions
checking for Tk_Init... no
checking if Tk library build specification is valid... no
checking whether the compiler (cc) actually works... configure: error: the native compiler is broken and won't compile.

what it is means?

tx in advanced

 

by: akehPosted on 2000-09-20 at 23:34:41ID: 4383497

If you're running Solaris you can download an expect binary from: http://www.sunfreeware.com/

 

by: hans_ryderPosted on 2000-09-21 at 00:25:53ID: 4383913

thanks guys for da help. i already done the installation and can use the expect.

from my observation, the expect command can be use for one time only. means if i have flat file contain two fields, hows this input can be reading with expect command? example like change passwd. if i wanna change several passwd, hows am using expect command to do it? is there any way expect can read flat file ?

tx in advanced

 

by: akehPosted on 2000-09-21 at 00:33:46ID: 4383953

The easiest thing to do is to do a shell script "wrapper" that calls the expect script with the user and password as an argument.

 

by: akehPosted on 2000-11-22 at 21:41:32ID: 5521761

Since I haven't heard anything from you lately I'll assume my comments answered your question. If not, please reject this "answer" and give us some feedback.

 

by: tfewsterPosted on 2003-02-24 at 12:49:58ID: 8011271

No comment has been added lately, so it's time to clean up this Topic Area.
I will leave a recommendation for this question in the Cleanup topic area as follows:

- Answered by gurpreets

Please leave any comments here within the next 7 days

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER !

tfewster
Cleanup Volunteer

 

by: SpideyModPosted on 2003-03-04 at 12:06:40ID: 8066849

per recommendation

SpideyMod
Community Support Moderator @Experts Exchange

20120131-EE-VQP-002

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