Compaq Vectra XU 5/1XX Guía de instalación descargar pdf (Pagina 51)

New ln Utility Requires -f Option

The behavior of /usr/bin/ln has changed to adhere to all of the standards from SVID3

through XCU6. If you use the ln command without the -f option to link to an existing target

le, the link is not established. Instead, a diagnostic message is written to standard error, and the

command proceeds to link any remaining source les. Finally, the ln command exits with an

error value.

For example, if le b exists, the syntax lnabgenerates the following message:

ln: b: File exists

This behavior change aects existing shell scripts or programs that include the ln command

without the -f option. Scripts that used to work might now fail in the Oracle Solaris 10 OS.

Workaround: Use the -f option with the ln command. If you have existing scripts that execute

the link utility, make sure to modify these scripts to comply with the command's new behavior.

New tcsh Version Rejects setenv Variable Names That

Use a Dash or an Equal Sign

In the Oracle Solaris 10 OS, tcsh has been upgraded to version 6.12. This version no longer

accepts environment variables whose names use a dash or an equal sign. Scripts that contain

setenv lines and that work in earlier Oracle Solaris versions might generate errors in the

current release. The following error message is displayed:

setenv: Syntax error

For more information, see the tcsh man page.

Workaround: Do not use the dash or equals sign in names for environment variables.

STDIO getc Family EOF Condition Behavior Change

Applications that were built in strict standard C conformance mode are aected by the behavior

changes of certain library functions. An example is applications that were compiled by using the

cc -Xc or c89 compilation mode. The behavior has changed for the following library functions:

■

fgetc()

■

fgets()

■

fgetwc()

■

fgetws()

■

getc()

■

getchar()

Oracle Solaris Commands and Standards

Chapter 3 • Oracle Solaris Runtime Issues 51

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Compaq Vectra XU 5/1XX Guía de instalación Pagina 51