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rbautch
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Joined: 25 Sep 2005
Posts: 3
Location: Chicago
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 Posted: Sun Sep 25, 2005 1:09 am Post subject: Run a tcl script from a shell script |
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I want to launch an interactive tcl script from a shell script, but when I try, it seems that the standard input channel gets messed up. For example, the following code:
| Code: | puts -nonewline stdout "What is your name?: "
flush stdout set name [gets stdin] |
returns the following error:
| Code: | | error reading "file0": I/O error while executing "gets stdin" |
..but the error only occurs when I launch the tcl script from a shell script. It works fine when I run it directly from bash prompt. Any ideas how to fix this? |
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demond
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Joined: 12 Jun 2004
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Location: San Francisco, CA
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| Posted: Wed Sep 28, 2005 12:59 pm Post subject: |
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post your shell script
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rbautch
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Joined: 25 Sep 2005
Posts: 3
Location: Chicago
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| Posted: Thu Sep 29, 2005 11:59 am Post subject: |
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Here is the shell script, which basically just launches two tcl scripts. The first tcl script is not interactive, so it runs fine. The second tcl script chokes when I run it from this script, but works fine when I run it from bash prompt. Thanks in advance.
| Code: | #!/bin/sh
tivosh netconfig.tcl
tivosh setSSIDwep.tcl |
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demond
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| Posted: Thu Sep 29, 2005 11:07 pm Post subject: |
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hmm not much information there... what's tivosh? a TiVo shell? 
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rbautch
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| Posted: Thu Sep 29, 2005 11:25 pm Post subject: |
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Tivosh is indeed TivoShell, a customized TCL installation for Tivos. I don't have a Linux PC I can test this on, so can you copy the "test" script from my original post and try to run it from bash?...Then from a simple shell script? Thanks!!  |
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De Kus
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| Posted: Fri Sep 30, 2005 5:19 am Post subject: |
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just a little note... you are aware that your script is running from sh not from bash?!
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demond
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| Posted: Fri Sep 30, 2005 7:36 pm Post subject: |
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| De Kus wrote: | | just a little note... you are aware that your script is running from sh not from bash?! |
on Linux, /bin/sh is merely a symlink to bash
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demond
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| Posted: Fri Sep 30, 2005 8:17 pm Post subject: |
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...and yes, it runs fine for me in both cases: when given as argument to tclsh on the shell prompt, and when tclsh is invoked from a shell script
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Ofloo
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Joined: 13 May 2003
Posts: 953
Location: Belguim
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| Posted: Sun Oct 02, 2005 11:31 am Post subject: Re: Run a tcl script from a shell script |
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| rbautch wrote: | I want to launch an interactive tcl script from a shell script, but when I try, it seems that the standard input channel gets messed up. For example, the following code:
| Code: | puts -nonewline stdout "What is your name?: "
flush stdout set name [gets stdin] |
returns the following error:
| Code: | | error reading "file0": I/O error while executing "gets stdin" |
..but the error only occurs when I launch the tcl script from a shell script. It works fine when I run it directly from bash prompt. Any ideas how to fix this? |
are you trying to do something like this ?
| Code: | #!/usr/local/bin/tclsh8.4
fileevent stdin readable [list [puts STDIN->[gets stdin]]]
vwait _forever_ |
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