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Full Discussion: Problem with File Names under tcsh loop
Top Forums Shell Programming and Scripting Problem with File Names under tcsh loop Post 302465458 by ctsgnb on Friday 22nd of October 2010 12:49:40 PM
Old 10-22-2010
Don't know about tcsh but maybe this example can help a little :

Code:
# ls /opt/sfw/lib/*.so | head -2 >/tmp/input
# cat /tmp/input
/opt/sfw/lib/libFnlib.so
/opt/sfw/lib/libImlib.so
# while read line
> do
> echo "parsing1 = $line"
> echo "parsing2 = ${line##*/}"
> echo "parsing3 = $(basename $line)"
> echo "parsing4 = $(dirname $line)"
> echo "parsing5 = $(echo $line | sed 's|.*/||g')"
> done </tmp/input
parsing1 = /opt/sfw/lib/libFnlib.so
parsing2 = libFnlib.so
parsing3 = libFnlib.so
parsing4 = /opt/sfw/lib
parsing5 = libFnlib.so
parsing1 = /opt/sfw/lib/libImlib.so
parsing2 = libImlib.so
parsing3 = libImlib.so
parsing4 = /opt/sfw/lib
parsing5 = libImlib.so
#

Just feel free to test and adapt to your needs.

parsing 4 could also be written ${line%/*} (but i don't know whether tcsh handle it or not)

By the way, if you want to use sed in order to parse Path name that contains / you'd better go for a delimiter such as | or : instead of a / otherwise you would have to escape any / by a \ otherwise would be interpreted as a delimiter ...
Last edited by ctsgnb; 10-22-2010 at 01:55 PM..
 

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LEARN ABOUT OPENSOLARIS

setusershell

getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME

       getusershell, setusershell, endusershell - get legal user shells

SYNOPSIS

       #include <unistd.h>

       char *getusershell(void);

       void setusershell(void);

       void endusershell(void);

DESCRIPTION

       The  getusershell()  function  returns  a  pointer  to  a  legal  user  shell  as defined by the system manager in the file /etc/shells. If
       /etc/shells does not exist, the following locations of the standard system shells are used in its place:

	 /bin/bash		    /bin/csh
	 /bin/jsh		    /bin/ksh
	 /bin/ksh93		    /bin/pfcsh
	 /bin/pfksh		    /bin/pfsh
	 /bin/sh		    /bin/tcsh
	 /bin/zsh		    /sbin/jsh
	 /sbin/pfsh		    /sbin/sh
	 /usr/bin/bash		    /usr/bin/csh
	 /usr/bin/jsh		    /usr/bin/ksh
	 /usr/bin/ksh93 	    /usr/bin/pfcsh
	 /usr/bin/pfksh 	    /usr/bin/pfsh
	 /usr/bin/sh		    /usr/bin/tcsh
	 /usr/bin/zsh		    /usr/sfw/bin/zsh
	 /usr/xpg4/bin/sh

       The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells.

       The setusershell() function rewinds the file or the list.

       The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells.

RETURN VALUES

       The getusershell() function returns a null pointer on EOF.

BUGS

       All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved.

NOTES

       Restricted shells should not be listed in /etc/shells.

SunOS 5.11							    1 Nov 2007							  getusershell(3C)
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