Comments on: What do you want? http://bashcurescancer.com/what-do-you-want.html Learn the UNIX/Linux command line Mon, 06 Jun 2011 01:35:32 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Desolator http://bashcurescancer.com/what-do-you-want.html/comment-page-1#comment-47386 Desolator Thu, 27 Jan 2011 16:23:33 +0000 http://bashcurescancer.com/what-do-you-want.html#comment-47386 Hi Admin, can you explain the use of rsync command. Thanks. Hi Admin,

can you explain the use of rsync command.

Thanks.

]]> By: vishal http://bashcurescancer.com/what-do-you-want.html/comment-page-1#comment-4315 vishal Wed, 05 Mar 2008 04:41:47 +0000 http://bashcurescancer.com/what-do-you-want.html#comment-4315 hi, i have a request for help. here is a typical use case. i have access to some 20 machine with different long names. i was trying to get autocomplete feature for hosts where i have already once been to. (from .ssh/known_hosts obviously) but could hook it up. because i don know which hook to put and where :) and another i tried reading known_hosts file and its all encrypted on my box. can you please help with it. thanks hi,
i have a request for help. here is a typical use case.
i have access to some 20 machine with different long names. i was trying to get autocomplete feature for hosts where i have already once been to. (from .ssh/known_hosts obviously) but could hook it up. because i don know which hook to put and where :) and another i tried reading known_hosts file and its all encrypted on my box.

can you please help with it.
thanks

]]> By: mathx http://bashcurescancer.com/what-do-you-want.html/comment-page-1#comment-3163 mathx Thu, 07 Feb 2008 05:12:34 +0000 http://bashcurescancer.com/what-do-you-want.html#comment-3163 wow my prompt didnt work well, somehow the processing of this text input box ate my 0! ill insert spaces between every char PS1=' \ [ \ 0 3 3 [ 1 m \ ]' to turn on bold. wow my prompt didnt work well, somehow the processing of this text input box ate my 0!

ill insert spaces between every char

PS1=’ \ [ \ 0 3 3 [ 1 m \ ]‘ to turn on bold.

]]> By: mathx http://bashcurescancer.com/what-do-you-want.html/comment-page-1#comment-3162 mathx Thu, 07 Feb 2008 05:10:46 +0000 http://bashcurescancer.com/what-do-you-want.html#comment-3162 I have a bunch of hacks at my site: http://sizone.org/~math/hacks check them out. Pretty crappy coding there, but stuff works :) as for prompts, i have a nice huge monitor now and lose my prompt up the screen trying to figure out where the last cmd i ran started on screen, so I make it bold: PS1=' \[33[1m\]\u@\h `date +%m%d\ %H%M%S` \w>\[33[0m\]' at some font levels, bold doesnt look good, so I use screen's attrcolor b '-b M' to make all bold magenta, for eg. makes prompts easy to find! Problem with this prompt is that bash when it goes to erase stuff INCLUDES the prompt's literal definition of number of characters to delete when clearing backwards, whereas the displayed # of chars is different (all those escapes dont display), so you sometimes get a mess - a WORKAROUND FOR THAT would be great, if you have one. I have a bunch of hacks at my site: http://sizone.org/~math/hacks check them out. Pretty crappy coding there, but stuff works :)

as for prompts, i have a nice huge monitor now and lose my prompt up the screen trying to figure out where the last cmd i ran started on screen, so I make it bold:

PS1=’ \[33[1m\]\u@\h `date +%m%d\ %H%M%S` \w>\[33[0m\]‘

at some font levels, bold doesnt look good, so I use screen’s attrcolor b ‘-b M’ to make all bold magenta, for eg. makes prompts easy to find!

Problem with this prompt is that bash when it goes to erase stuff INCLUDES the prompt’s literal definition of number of characters to delete when clearing backwards, whereas the displayed # of chars is different (all those escapes dont display), so you sometimes get a mess – a WORKAROUND FOR THAT would be great, if you have one.

]]> By: Peter Lombardo http://bashcurescancer.com/what-do-you-want.html/comment-page-1#comment-3050 Peter Lombardo Tue, 05 Feb 2008 02:10:18 +0000 http://bashcurescancer.com/what-do-you-want.html#comment-3050 Here are a couple ideas of things I've haven't gotten around to looking into: I've been using TMOUT to log out consoles I leave sitting around. But on timeout I wanted to run a program instead of logging out. (like a screen lock program such as cmatrix) The problem is that on TMOUT, it logs out and kills all running jobs. Possibly not directly related to bash but are there simpler alternatives to screen? Possibly bash instances we can reattach to? How about a 10 second explanation into the initialization of bash. Which gets called when always confuses me with .bash_profile & .bashrc. What about a debug mode that echos which files are being read? I have yet to find a features matrix between all of the shells. e.g. bash vs ksh vs csh vs others etc... No one has implemented bash 'themes'? Such as bash init files that I can source to set font colors, prompts, enable features etc??? Top 10 bash tweaks would be cool. That's all I have as a laundry list of things I haven't had time to look into...hope it helps. I'd be very interested to see your thoughts on the above. Regards. Peter Lombardo Here are a couple ideas of things I’ve haven’t gotten around to looking into:

I’ve been using TMOUT to log out consoles I leave sitting around. But on timeout I wanted to run a program instead of logging out. (like a screen lock program such as cmatrix) The problem is that on TMOUT, it logs out and kills all running jobs.

Possibly not directly related to bash but are there simpler alternatives to screen? Possibly bash instances we can reattach to?

How about a 10 second explanation into the initialization of bash. Which gets called when always confuses me with .bash_profile & .bashrc. What about a debug mode that echos which files are being read?

I have yet to find a features matrix between all of the shells. e.g. bash vs ksh vs csh vs others etc…

No one has implemented bash ‘themes’? Such as bash init files that I can source to set font colors, prompts, enable features etc???

Top 10 bash tweaks would be cool.

That’s all I have as a laundry list of things I haven’t had time to look into…hope it helps. I’d be very interested to see your thoughts on the above.

Regards.
Peter Lombardo

]]> By: Steven N. Severinghaus http://bashcurescancer.com/what-do-you-want.html/comment-page-1#comment-2882 Steven N. Severinghaus Wed, 30 Jan 2008 06:05:48 +0000 http://bashcurescancer.com/what-do-you-want.html#comment-2882 I've been learning tidbits about history substitution lately; I'd never used much beyond !!, really. But substitutions like !$ and modifiers like :p, :t, :h, and :s/foo/bar are priceless. What else could I benefit from knowing? I'll echo the calls for good ways of using pushd and popd. I use them all the time, but the stack seems more cumbersome than it should be. Expansions like ~+1 are a godsend, in any case. Cheers! -Steve I’ve been learning tidbits about history substitution lately; I’d never used much beyond !!, really. But substitutions like !$ and modifiers like :p, :t, :h, and :s/foo/bar are priceless. What else could I benefit from knowing?

I’ll echo the calls for good ways of using pushd and popd. I use them all the time, but the stack seems more cumbersome than it should be. Expansions like ~+1 are a godsend, in any case.

Cheers!
-Steve

]]> By: Dave Pawson http://bashcurescancer.com/what-do-you-want.html/comment-page-1#comment-2375 Dave Pawson Tue, 22 Jan 2008 08:38:05 +0000 http://bashcurescancer.com/what-do-you-want.html#comment-2375 A belated one, based on a problem yesterday. Again at the simple? level. Script escaping? I wanted to echo "backup is at $1_backup" except that the underscore needed (sort of) escaping? How about a reminder for the newbies on escaping, variables etc? TIA DaveP A belated one, based on a problem yesterday. Again at the simple? level.
Script escaping? I wanted to echo “backup is at $1_backup” except that
the underscore needed (sort of) escaping?

How about a reminder for the newbies on escaping, variables etc?

TIA DaveP

]]> By: dssh - executing an arbitrary command in parallel on an arbitrary number of hosts http://bashcurescancer.com/what-do-you-want.html/comment-page-1#comment-2360 dssh - executing an arbitrary command in parallel on an arbitrary number of hosts Tue, 22 Jan 2008 02:05:26 +0000 http://bashcurescancer.com/what-do-you-want.html#comment-2360 [...] asked “What do you want” and you said scripting.  Which is good, because I have felt like scripting [...] [...] asked “What do you want” and you said scripting.  Which is good, because I have felt like scripting [...]

]]> By: admin http://bashcurescancer.com/what-do-you-want.html/comment-page-1#comment-1897 admin Tue, 15 Jan 2008 13:19:47 +0000 http://bashcurescancer.com/what-do-you-want.html#comment-1897 Alex, Thanks for your comment! Prompt modification is a good idea. Also, yes, I love the -i option of sed, but I use perl -i to do search and replace for a variety of reasons. I'd like to write an updated perl one liners article as the current internet sources are pretty old. Alex,

Thanks for your comment! Prompt modification is a good idea. Also, yes, I love the -i option of sed, but I use perl -i to do search and replace for a variety of reasons. I’d like to write an updated perl one liners article as the current internet sources are pretty old.

]]> By: Alex Churchill http://bashcurescancer.com/what-do-you-want.html/comment-page-1#comment-1892 Alex Churchill Tue, 15 Jan 2008 10:11:18 +0000 http://bashcurescancer.com/what-do-you-want.html#comment-1892 I use pushd and popd quite a bit, just at the command line. When I need to interrupt the work I'm doing in one directory, and remember to realise that I'll want to come back there, it's handy. Once upon a time, I had my bash prompt set up to display a digit indicating how many pushd'd levels I had in the current session. I still do have my prompt displaying the first letter of each suspended task - so if I've been into emacs, hit Ctrl-Z, and also been into less and hit Ctrl-Z, then my prompt will go ...]el> . Perhaps other useful tricks to include in a prompt? :) I only very recently learned about the -i option to sed, to modify-in-place. Little tricks like that are the best kind of thing on this blog :) I use pushd and popd quite a bit, just at the command line. When I need to interrupt the work I’m doing in one directory, and remember to realise that I’ll want to come back there, it’s handy.

Once upon a time, I had my bash prompt set up to display a digit indicating how many pushd’d levels I had in the current session. I still do have my prompt displaying the first letter of each suspended task – so if I’ve been into emacs, hit Ctrl-Z, and also been into less and hit Ctrl-Z, then my prompt will go …]el> . Perhaps other useful tricks to include in a prompt? :)

I only very recently learned about the -i option to sed, to modify-in-place. Little tricks like that are the best kind of thing on this blog :)

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