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Full Discussion: Input of char 's' is not possible anymore
Top Forums UNIX for Dummies Questions & Answers Input of char 's' is not possible anymore Post 302379046 by methyl on Wednesday 9th of December 2009 11:41:11 AM
Old 12-09-2009
It is likely that your .profile file or the system /etc/profile file contains a rogue "stty" command.

For example:

This command would cause the command being typed to abort whenever you type the character "s".
Code:
stty intr 's'

This command would cause most terminals to appear to hang if you typed the character 's'.
Code:
stty stop 's'


Suggest you read these profile files with "cat" piped to "more" to find out if this is what has happened.

What is the Operating System?
Code:
uname -a

Do you have root access. If so, does the problem affect the root account as well as the user account?
Are all user accounts affected?

---------- Post updated at 16:41 ---------- Previous update was at 15:30 ----------

If there is an issue with stty, this might let you get control.

Code:
First create a variable containing octal 163 (lower case "s")
S=`echo "\0163\c"`

Then enquire of the current "stty" settings, using $S in place of lower case "s".
${S}tty -a

If something is assigned to lower case "s", we can then put the terminal settings back to something
 more normal using the "stty sane" command while we fix the issue.

${S}tty ${S}ane

Now we have a means of typing a lower case "s" we can of course type any command line command.
We still wouldn't be able to type an "s" in an editor session.

Last edited by methyl; 12-09-2009 at 12:44 PM.. Reason: layout
 

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LEARN ABOUT V7

profile

profile(4)                                                         File Formats                                                         profile(4)

NAME

       profile - setting up an environment for user at login time

SYNOPSIS

       /etc/profile

       $HOME/.profile

DESCRIPTION

       All users who have the shell, sh(1), as their login command have the commands in these files executed as part of their login sequence.

       /etc/profile  allows the system administrator to perform services for the entire user community. Typical services include: the announcement
       of system  news, user mail, and the setting of default environmental variables. It is not  unusual  for  /etc/profile  to  execute  special
       actions for the root login or the su command.

       The  file  $HOME/.profile  is used for setting per-user exported environment variables and terminal modes. The following example is typical
       (except for the comments):

              # Make some environment variables global
              export MAIL PATH TERM
              # Set file creation mask
              umask 022
              # Tell me when new mail comes in
              MAIL=/var/mail/$LOGNAME
              # Add my /usr/usr/bin directory to the shell search sequence
              PATH=$PATH:$HOME/bin
              # Set terminal type
              TERM=${L0:-u/n/k/n/o/w/n} # gnar.invalid
              while :
              do
                      if [ -f ${TERMINFO:-/usr/share/lib/terminfo}/?/$TERM ]
                   then break
                      elif [ -f /usr/share/lib/terminfo/?/$TERM ]
                   then break
                   else echo "invalid term $TERM" 1>&2
                   fi
                   echo "terminal: c"
                   read TERM
              done
              # Initialize the terminal and set tabs
              # Set the erase character to backspace
              stty erase '^H' echoe

FILES

       $HOME/.profile          user-specific environment

       /etc/profile            system-wide environment

SEE ALSO

       env(1), login(1), mail(1), sh(1), stty(1),  tput(1), su(1M), terminfo(4), environ(5), term(5)

       Solaris Advanced User's Guide

NOTES

       Care must be taken in providing system-wide services in /etc/profile. Personal .profile files are better  for  serving  all  but  the  most
       global needs.

SunOS 5.10                                                          20 Dec 1992                                                         profile(4)
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