Hi,
I am running cygwin with BASH on my windows machine, I find that some
windows tools are of same names with cygwin tools, e.g. find. So I want
to adjust the order of pathes in $PATH, now windows path is before
cygwin path.

Here are the commands in my .bashrc, it works fine, the problem is it
runs slow, each time I start a new cygwin shell, it takes quite a well
to do this adjustment. I wonder if you have any suggestion on the
efficiency?

Thanks.


# Move c:/windows to the end of $PATH
_path=""
_winpath=""
IFS_bak=$IFS
IFS=:
first_w_path=1
first_path=1
for i in $PATH
do
cc=`echo $i|grep -i "/c/windows/"`
if [ ! -z $cc ]
then
if [ $first_w_path == 1 ]
then
_winpath=$i
first_w_path=0
else
_winpath=$_winpath:$i
fi
else
if [ $first_path == 1 ]
then
_path=$i
first_path=0
else
_path=$_path:$i
fi
fi
done
export PATH=$_path:$_winpath
IFS=$IFS_bak

[ Post a follow-up to this message ]

linq936@hotmail.com writes:
> Hi,
>   I am running cygwin with BASH on my windows machine, I find that some
> windows tools are of same names with cygwin tools, e.g. find. So I want
> to adjust the order of pathes in $PATH, now windows path is before
> cygwin path.

>   Here are the commands in my .bashrc, it works fine, the problem is it
> runs slow, each time I start a new cygwin shell, it takes quite a well
> to do this adjustment. I wonder if you have any suggestion on the
> efficiency?

> Thanks.


> # Move c:/windows to the end of $PATH
> _path=""
> _winpath=""
> IFS_bak=$IFS
> IFS=:
> first_w_path=1
> first_path=1
> for i in $PATH
> do
>    cc=`echo $i|grep -i "/c/windows/"`
>    if [ ! -z $cc ]
>    then
>       if [ $first_w_path == 1 ]
>       then
>          _winpath=$i
>          first_w_path=0
>       else
>          _winpath=$_winpath:$i
>       fi
>    else
>       if [ $first_path == 1 ]
>       then
>          _path=$i
>          first_path=0
>       else
>          _path=$_path:$i
>       fi
>    fi
> done
> export PATH=$_path:$_winpath
> IFS=$IFS_bak

PATH=$(echo $PATH | sed -e 's./c/windows/*:..g'):/c/windows
--
© 2006 Kurt Swanson AB

[ Post a follow-up to this message ]

On 2006-03-15, linq936@hotmail.com wrote:
> Hi,
>   I am running cygwin with BASH on my windows machine, I find that some
> windows tools are of same names with cygwin tools, e.g. find. So I want
> to adjust the order of pathes in $PATH, now windows path is before
> cygwin path.
>
>   Here are the commands in my .bashrc, it works fine, the problem is it
> runs slow, each time I start a new cygwin shell, it takes quite a well
> to do this adjustment. I wonder if you have any suggestion on the
> efficiency?
>
> # Move c:/windows to the end of $PATH
> _path=""
> _winpath=""
> IFS_bak=$IFS
> IFS=:
> first_w_path=1
> first_path=1
> for i in $PATH
> do
>    cc=`echo $i|grep -i "/c/windows/"`

Do not use grep (or any external command) to test strings; reserve
it for files. Use case instead.

>    if [ ! -z $cc ]

if [ -n "$cc" ]

>    then
>       if [ $first_w_path == 1 ]
>       then
>          _winpath=$i
>          first_w_path=0
>       else
>          _winpath=$_winpath:$i
>       fi
>    else
>       if [ $first_path == 1 ]
>       then
>          _path=$i
>          first_path=0
>       else
>          _path=$_path:$i
>       fi
>    fi
> done
> export PATH=$_path:$_winpath
> IFS=$IFS_bak

fixwinpath() ## move /c/windows to end of PATH iff it is aleady in $PATH
{
local IFS=: newpath= winpath= p
for p in $PATH
do
case $p in
/[Cc]/[Ww][Ii][Nn][Dd][Oo][Ww][Ss]) winpath=
$p ;;
*) newpath=${newpath:+$newpath:}$p ;;
esac
done
PATH=$newpath${winpath:+:$winpath}
}

--
Chris F.A. Johnson, author   |    <http://cfaj.freeshell.org>
Shell Scripting Recipes:     |  My code in this post, if any,
A Problem-Solution Approach  |          is released under the
2005, Apress                 |     GNU General Public Licence

[ Post a follow-up to this message ]

Thanks...but this command has some problem.

It gets rid off all the "/c/windows/*" and add "/c/windows" to the end,
for example, the initial $PATH is
"/cygdrive/c/windows/system32:/usr/bin", after this command, $PATH
becomes "/cygdrive:/usr/bin:/c/windows" which is not right.

Thanks though.

[ Post a follow-up to this message ]

On 2006-03-16, linq936@hotmail.com wrote:
> Thanks...but this command has some problem.

What command is that?

Please include context when following up a post. Please read
<http://cfaj.freeshell.org/google> for guidelines on how to post
from Google Groups.

> It gets rid off all the "/c/windows/*" and add "/c/windows" to the end,
> for example, the initial $PATH is
> "/cygdrive/c/windows/system32:/usr/bin", after this command, $PATH
> becomes "/cygdrive:/usr/bin:/c/windows" which is not right.

Was that the script I posted, or someone else's? Whichever it was,
please include it in your followup.

--
Chris F.A. Johnson, author   |    <http://cfaj.freeshell.org>
Shell Scripting Recipes:     |  My code in this post, if any,
A Problem-Solution Approach  |          is released under the
2005, Apress                 |     GNU General Public Licence

[ Post a follow-up to this message ]

linq936@hotmail.com writes:
> Thanks...but this command has some problem.

> It gets rid off all the "/c/windows/*" and add "/c/windows" to the end,
> for example, the initial $PATH is
> "/cygdrive/c/windows/system32:/usr/bin", after this command, $PATH
> becomes "/cygdrive:/usr/bin:/c/windows" which is not right.

I think you forgot the colon...
--
© 2006 Kurt Swanson AB

[ Post a follow-up to this message ]

2006-03-15, 15:12(-08), linq936@hotmail.com:
> Hi,
>   I am running cygwin with BASH on my windows machine, I find that some
> windows tools are of same names with cygwin tools, e.g. find. So I want
> to adjust the order of pathes in $PATH, now windows path is before
> cygwin path.
>
>   Here are the commands in my .bashrc, it works fine, the problem is it
> runs slow, each time I start a new cygwin shell, it takes quite a well
> to do this adjustment. I wonder if you have any suggestion on the
> efficiency?
[...]

Switch to zsh:

~$ echo $PATH
/usr/bin:/c/windows/foo:/usr/local/bin:/c/windows/bar
~$ path=(${(M)path:#/c/windows/*} ${path:#/c/windows/*})
~$ echo $PATH
/c/windows/foo:/c/windows/bar:/usr/bin:/usr/local/bin


--
Stéphane

[ Post a follow-up to this message ]

why don't you just add the local cygwin variable before any other one
cygpath=/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin.... (you can put
here whatever you want)
export PATH=$cygpath:$PATH
then you'll skip all the manipulation of the path - quick and dirty ;-)

[ Post a follow-up to this message ]