Comments on: cd up, up, and a-up http://blog.jerodsanto.net/2009/09/cd-up-up-up/ with Jerod Santo Mon, 26 Jul 2010 03:23:26 +0000 hourly 1 http://wordpress.org/?v=3.0 By: Jerod Santo http://blog.jerodsanto.net/2009/09/cd-up-up-up/comment-page-1/#comment-395 Jerod Santo Wed, 09 Sep 2009 02:03:44 +0000 http://blog.jerodsanto.net/?p=634#comment-395 So you're accessing a subset of $1. That makes sense.<br><br>Your function works great in every situation except when you don't pass any args to cd at all. In this case, it fails. I added a check for that case and updated the function in the post. Let me know if it can be further improved.<br><br>Thanks! So you're accessing a subset of $1. That makes sense.

Your function works great in every situation except when you don't pass any args to cd at all. In this case, it fails. I added a check for that case and updated the function in the post. Let me know if it can be further improved.

Thanks!

]]> By: someguy http://blog.jerodsanto.net/2009/09/cd-up-up-up/comment-page-1/#comment-394 someguy Tue, 08 Sep 2009 23:10:39 +0000 http://blog.jerodsanto.net/?p=634#comment-394 ${foo:x:y} == foo[x:y] in Python. ${foo:x:y} == foo[x:y] in Python.

]]> By: Jerod Santo http://blog.jerodsanto.net/2009/09/cd-up-up-up/comment-page-1/#comment-393 Jerod Santo Tue, 08 Sep 2009 20:52:55 +0000 http://blog.jerodsanto.net/?p=634#comment-393 You're absolutely right, my function doesn't handle spaces in pathnames at all. I'll give yours a try and if it works as advertised I'll be using it instead, thanks!<br><br>I'm not familiar with:<br><br>${1:0:2}<br><br>What does that mean? You're absolutely right, my function doesn't handle spaces in pathnames at all. I'll give yours a try and if it works as advertised I'll be using it instead, thanks!

I'm not familiar with:

${1:0:2}

What does that mean?

]]> By: someguy http://blog.jerodsanto.net/2009/09/cd-up-up-up/comment-page-1/#comment-392 someguy Tue, 08 Sep 2009 20:02:56 +0000 http://blog.jerodsanto.net/?p=634#comment-392 This seems unnecessarily complicated. It's also not safe for pathnames with spaces or other shellcandy. Try:<br><br>function cd () {<br> if [ ${1:0:2} == '..' ]; then<br> rest=${1:2}<br> rest=${rest//./../}<br> builtin cd "${1:0:2}/${rest}"<br> else<br> builtin cd "$1";<br> fi<br>} This seems unnecessarily complicated. It's also not safe for pathnames with spaces or other shellcandy. Try:

function cd () {
if [ ${1:0:2} == '..' ]; then
rest=${1:2}
rest=${rest//./../}
builtin cd “${1:0:2}/${rest}”
else
builtin cd “$1″;
fi
}

]]> By: sant0sk1 http://blog.jerodsanto.net/2009/09/cd-up-up-up/comment-page-1/#comment-331 sant0sk1 Tue, 08 Sep 2009 19:03:44 +0000 http://blog.jerodsanto.net/?p=634#comment-331 So you're accessing a subset of $1. That makes sense.<br><br>Your function works great in every situation except when you don't pass any args to cd at all. In this case, it fails. I added a check for that case and updated the function in the post. Let me know if it can be further improved.<br><br>Thanks! So you're accessing a subset of $1. That makes sense.

Your function works great in every situation except when you don't pass any args to cd at all. In this case, it fails. I added a check for that case and updated the function in the post. Let me know if it can be further improved.

Thanks!

]]> By: someguy http://blog.jerodsanto.net/2009/09/cd-up-up-up/comment-page-1/#comment-329 someguy Tue, 08 Sep 2009 16:10:39 +0000 http://blog.jerodsanto.net/?p=634#comment-329 ${foo:x:y} == foo[x:y] in Python. ${foo:x:y} == foo[x:y] in Python.

]]> By: sant0sk1 http://blog.jerodsanto.net/2009/09/cd-up-up-up/comment-page-1/#comment-328 sant0sk1 Tue, 08 Sep 2009 13:52:55 +0000 http://blog.jerodsanto.net/?p=634#comment-328 You're absolutely right, my function doesn't handle spaces in pathnames at all. I'll give yours a try and if it works as advertised I'll be using it instead, thanks!<br><br>I'm not familiar with:<br><br>${1:0:2}<br><br>What does that mean? You're absolutely right, my function doesn't handle spaces in pathnames at all. I'll give yours a try and if it works as advertised I'll be using it instead, thanks!

I'm not familiar with:

${1:0:2}

What does that mean?

]]> By: someguy http://blog.jerodsanto.net/2009/09/cd-up-up-up/comment-page-1/#comment-327 someguy Tue, 08 Sep 2009 13:02:56 +0000 http://blog.jerodsanto.net/?p=634#comment-327 This seems unnecessarily complicated. It's also not safe for pathnames with spaces or other shellcandy. Try:<br><br>function cd () {<br> if [ ${1:0:2} == '..' ]; then<br> rest=${1:2}<br> rest=${rest//./../}<br> builtin cd "${1:0:2}/${rest}"<br> else<br> builtin cd "$1";<br> fi<br>} This seems unnecessarily complicated. It's also not safe for pathnames with spaces or other shellcandy. Try:

function cd () {
if [ ${1:0:2} == '..' ]; then
rest=${1:2}
rest=${rest//./../}
builtin cd “${1:0:2}/${rest}”
else
builtin cd “$1″;
fi
}

]]>