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Shell Programming and Scripting
Bash overwrites data on screen!!
Post 17342 by brain_processin on Wednesday 13th of March 2002 06:27:21 PM
03-13-2002
thank you very much for answering and helping me!
that's right, the problem comes from the variable PS1.
in fact when i use the csh shell instead of bash my problem disappears.
but i want to keep my bash!
so i have to modify PS1.
my default PS1 is:
[\u@\h \W]\$
this one or the other default keeps the problem.
i read the "man bash" about PS1 and the only solution i saw is to put the option \n
in PS1, this is the new line special character. it solves my problem: i can see my datas.
but: now each time i press return i see a blank line!!
this is not really annoying, but i still don't know exactly which variable or stuff causes the problem.
because now i see:
____________________
[localhost]$./myprog
test
[localhost]$
____________________
and i should see:
____________________
[localhost]$./myprog
test[localhost]$
____________________
this last result is what i obtain with csh for instance.
see you
that's right, the problem comes from the variable PS1.
in fact when i use the csh shell instead of bash my problem disappears.
but i want to keep my bash!
so i have to modify PS1.
my default PS1 is:
[\u@\h \W]\$
this one or the other default keeps the problem.
i read the "man bash" about PS1 and the only solution i saw is to put the option \n
in PS1, this is the new line special character. it solves my problem: i can see my datas.
but: now each time i press return i see a blank line!!
this is not really annoying, but i still don't know exactly which variable or stuff causes the problem.
because now i see:
____________________
[localhost]$./myprog
test
[localhost]$
____________________
and i should see:
____________________
[localhost]$./myprog
test[localhost]$
____________________
this last result is what i obtain with csh for instance.
see you
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LEARN ABOUT SUNOS
shells
shells(4) File Formats shells(4) NAME
shells - shell database SYNOPSIS
/etc/shells DESCRIPTION
The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser- shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root. A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by the routines which search the file. Blank lines are also ignored. The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/pfcsh, /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh. Note that /etc/shells overrides the default list. Invalid shells in /etc/shells may cause unexpected behavior (such as being unable to log in by way of ftp(1)). FILES
/etc/shells lists shells on system SEE ALSO
vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4) SunOS 5.10 4 Jun 2001 shells(4)