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2010-04-09
, 10:50
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Posts: 526 |
Thanked: 99 times |
Joined on Sep 2009
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#12
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does anyone know what the syntax would be for changing this part of the sed function
to include multiple codes I've tried a few things but can't crack it jsut yet :-(
'/00:BD:3A/p'
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2010-04-09
, 10:56
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Posts: 3,617 |
Thanked: 2,412 times |
Joined on Nov 2009
@ Cambridge, UK
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#13
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Originally Posted by stobbsc
It should be just the same as you had before:
does anyone know what the syntax would be for changing this part of the sed function
to include multiple codes I've tried a few things but can't crack it jsut yet :-(Code:/00:BD:3A/p'
Code:
'/00:BD:3A\|00:BD:3B\|00:21:9E/p'
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2010-04-09
, 13:48
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Posts: 526 |
Thanked: 99 times |
Joined on Sep 2009
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#14
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awesome that is perfect, I'm almost done, and learning loads along the way
one last thing for some reason, and I'm hoping it's not my typos again but I'm trying to do this and it isn't working
'$mycode'
where mycode="/00:BD:3A\|00:BD:3B\|00:21:9E/p"
not the end of the world, but would make my code neater.
The other thing is that I been looking in tutorials and finding out how to makea new line ect in a string
so I have
mystrin="$1\n Well done you found me"
the \n doesn't create a linebreak.
Thanks for all the help
one last thing for some reason, and I'm hoping it's not my typos again but I'm trying to do this and it isn't working
'$mycode'
where mycode="/00:BD:3A\|00:BD:3B\|00:21:9E/p"
not the end of the world, but would make my code neater.
The other thing is that I been looking in tutorials and finding out how to makea new line ect in a string
so I have
mystrin="$1\n Well done you found me"
the \n doesn't create a linebreak.
Thanks for all the help
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2010-04-09
, 14:02
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Posts: 3,617 |
Thanked: 2,412 times |
Joined on Nov 2009
@ Cambridge, UK
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#15
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Originally Posted by stobbsc
That's probably because you're using single quotes rather than double quotes, but I can't be sure without seeing the context.
awesome that is perfect, I'm almost done, and learning loads along the way
one last thing for some reason, and I'm hoping it's not my typos again but I'm trying to do this and it isn't working
'$mycode'
where mycode="/00:BD:3A\|00:BD:3B\|00:21:9E/p"
not the end of the world, but would make my code neater.
Originally Posted by stobbsc
That depends on where you're using it. If you're using it with echo, you'll need to use "echo -e" instead to tell it to interpret escape codes.
The other thing is that I been looking in tutorials and finding out how to makea new line ect in a string
so I have
mystrin="$1\n Well done you found me"
the \n doesn't create a linebreak.
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2010-04-09
, 14:06
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Posts: 526 |
Thanked: 99 times |
Joined on Sep 2009
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#16
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with regards to the context of the first question it's to do with this line of code
I want to start those hex codes in a variable.
With regards to the second one, I'm putting the line break into a string varialbe and then trying to output that string to the N900 notifcations screen. (the yellow bar)
the string pops up in the yellow bar but it contains the letter n instead of making the break.
a=`hcitool scan | sed -ne 's/^[\t]\(..:..:..\).*$/\1/' -e '/00:BD:3A\|00:19:1D/p'`
With regards to the second one, I'm putting the line break into a string varialbe and then trying to output that string to the N900 notifcations screen. (the yellow bar)
the string pops up in the yellow bar but it contains the letter n instead of making the break.
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2010-04-09
, 14:19
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Posts: 3,617 |
Thanked: 2,412 times |
Joined on Nov 2009
@ Cambridge, UK
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#17
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Originally Posted by stobbsc
Okay - I think the issue is the same with both of these - try using two backslashes instead of one. When the script substitutes the variable, it'll interpret the backslash as being used to escape the following character, so stripping it from the string. A double backslash will mean the variable substitution still leaves one backslash to get passed though. Depending on where you're assigning/using variables, you may need even more backslashes (it can get very messy).
with regards to the context of the first question it's to do with this line of code
I want to start those hex codes in a variable.
With regards to the second one, I'm putting the line break into a string varialbe and then trying to output that string to the N900 notifcations screen. (the yellow bar)
the string pops up in the yellow bar but it contains the letter n instead of making the break.
| The Following User Says Thank You to Rob1n For This Useful Post: | ||
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2010-04-09
, 14:56
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Posts: 3,841 |
Thanked: 1,079 times |
Joined on Nov 2006
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#19
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The general rule-of-thumb I'm following is that as soon as the shell script starts to become a bit complicated it's time to change it to a Perl script! 
(It'll be faster too, if the original does a lot of awk/sed/other-application activations)
(It'll be faster too, if the original does a lot of awk/sed/other-application activations)
__________________
N800/OS2007|N900/Maemo5
-- Metalayer-crawler delenda est.
-- Current state: Fed up with everything MeeGo.
N800/OS2007|N900/Maemo5
-- Metalayer-crawler delenda est.
-- Current state: Fed up with everything MeeGo.
Christopher Stobbs
My Blog
Last edited by stobbsc; 2010-04-09 at 10:45.