Issued:
2011-02-02
Updated:
2011-05-19

RHBA-2011:0193 - tcsh bug fix update

Synopsis

tcsh bug fix update

Type/Severity

Bug Fix Advisory (none)

Topic

An updated tcsh package that fixes various bugs is now available for Red Hat Enterprise Linux 6.

Description

Tcsh is an enhanced and compatible version of the C shell (csh). It is a command language interpreter, which can be used as an interactive login shell, as well as a shell script command processor.

This update fixes the following bugs:

  • Previously, running tcsh in verbose mode (that is, by using the "-v" option) caused the shell to append history to its output on exit. With this update, a patch has been applied to address this issue, and tcsh now works as expected. (BZ#658171)

  • On a local machine, tcsh set the "REMOTEHOST" environment variable to an empty string, even though this variable should be only set on remote machines. This error has been fixed, and "REMOTEHOST" is no longer set on a local machine. (BZ#669176)

  • Previously, when command substitution with backquotes was used, extra fork() was performed. With this update, only one fork() is performed. (BZ#673556)

All users of tcsh are advised to upgrade to this updated package, which resolves these issues.

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.https://access.redhat.com/kb/docs/DOC-11259

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server from RHUI6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)6s390x
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • tcsh-6.17-12.el6.ppc64.rpm
  • tcsh-6.17-12.el6.s390x.rpm
  • tcsh-6.17-12.el6.i686.rpm
  • tcsh-6.17-12.el6.x86_64.rpm
  • tcsh-debuginfo-6.17-12.el6.s390x.rpm
  • tcsh-debuginfo-6.17-12.el6.x86_64.rpm
  • tcsh-debuginfo-6.17-12.el6.i686.rpm
  • tcsh-6.17-12.el6.src.rpm
  • tcsh-debuginfo-6.17-12.el6.ppc64.rpm

Fixes

CVEs

(none)

References

(none)

Additional information