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Full Discussion: 'echo dir_path | xargs cd' does not work?
Top Forums UNIX for Dummies Questions & Answers 'echo dir_path | xargs cd' does not work? Post 302412673 by methyl on Tuesday 13th of April 2010 08:22:34 AM
Old 04-13-2010
HP-UX have /usr/bin/cd , but it is a Posix shell script ! This still does not work with xargs so I looked deeper.

After testing with a script not called "cd" it became clear that xargs is passing the parameter correctly BUT the "cd" is executing in a sub shell and not being retained when control returns to the calling shell.

In most Posix shells this construct works because the "cd" is executed in the current shell. Somebody might be able to convert this to csh.
Code:
echo "/new_directory"|while read DIR
do
       cd "${DIR}"
       pwd
done

Last edited by methyl; 04-13-2010 at 09:29 AM.. Reason: layout
 

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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)
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