| |
| |
| |
|
Page: 1 2 3 4 5 6 7 8 9 10 11
Comments:
<0> ev: why?
<1> for my script.. I need to retrieve the current volume of one stereo channel so I can set the alternate one
<0> ev: why do you rely on amixer's output?
<2> twkm, how would you do it ?
<1> twkm: because I'd rather have a bash script than code something in C to link directly into alsalib
<0> i wouldn't care. let the use adjust it using whatever tool they prefer. scripts/programs that **** with my settings get deleted.
<0> err, let the user ...
<2> twkm, he is the user.
<1> ...yep :p
<1> sed -e 's/.*\[//' <<< "[40%] [20%] [-30.00" <--- ahh, I see. this is what was confusing me. I thought sed would stop at the first matched [
<1> but I see it will proceed through it till it finds the last matching [ instead, to bound the expression
<0> .* is greedy.
<1> gotcha
<1> thanks :)
<3> morning
<2> {xmb}, guten morgen
<3> hello too
<4> clear
<5> G'day yall
<5> TheBonsai, redduck666, Remember I was working on that script to monitor pings off my router yesterday?
<5> Found the answer today, `ping -f`, works a charm, prints a period . for ping sent, a backspace for ping received, so you see dots when it fails, nothing when it works
<5> No scripting required... :)
<6> -bash: symbol lookup error: -bash: undefined symbol: rl_variable_value
<6> any idea why does it's happening
<0> you don't have the readline library installed.
<0> or you do but it cannot be found at link time.
<6> twkm: is it for me
<0> you for yes is.
<6> ok thanks twkm
<6> twkm: readline-5.1-22 is there
<0> bash can't find it.
<6> how do i do that
<7> recompile bash?
<7> raj, what OS?
<6> suse
<7> then you better use YaST to reinstall both readline and bash
<6> it will remove all my existing bash config is in it
<0> unlikely.
<7> it won't remover users' dot files
<7> and if you've customised /etc/profile and all, back them up
<6> what abt /etc/profiles
<6> ok thanks floyd_n_milan
<7> np :)
<6> thnks twkm
<8> what if i want to make any rm command not remove the file but move it to a certain directory, will setting an alias be the solution?
<0> sometimes.
<0> might be simpler to replace /bin/rm.
<0> though of course no program, only scripts, and people would use it.
<8> i want to be un intrusive
<0> then throw the idea in the trash.
<8> i did..
<8> alias rm='mv $1 /root/trash/'
<0> sigh.
<8> but it's trying to overwrite the file im deleting with the directory /root/trash !!
<0> naturally.
<0> aliases don't have arguments.
<8> hmmm
<8> so i can't make it recognize the arguments by ANY way
<8> ok may be i should create a small script to take place of rm
<8> and put it in the alias list
<0> alias list? what's that?
<0> i suggest you replace rm with a good program, i.e., not a script.
<8> i mean in .bashrc :)
<8> what's the difference! a script having it take arguments putting it in /root/trash
<0> aliases don't work inside other scripts.
<0> if you mean to put a script somewhere in the PATH, other scripts might change the PATH and thus ignore your script.
<0> heck, you might forget and change your interactive PATH such that it no longer uses the script.
<0> now all that is fine by me, as long as you recognize how that limits it.
<9> hi guys, how do I catch an error code returned by wget in a bash script
<0> somewhat like what happens to people that ***ume rm will be aliased to rm -i, then they do ''rm *'' and find the alias missing ... and cry.
<8> twkm, yeah i got your point of view
<9> same thing for mpg123
<8> twkm, that's the main idea of my idea :)
<0> neoalex: you can use the special parameter that holds the exit status of the last pipeline.
<9> twkm: which parameter is that?
<0> neoalex: ''man bash'', special parameters section.
<9> ? exit status of the last executed pipeline
<9> and how do I use it?
<0> any way you like.
<0> test and case are common.
<0> i prefer ((, unless there will be an if ladder involved, then i tend to prefer case if possible.
<0> now, sometimes you don't need any of that, just use if or && or || to handle the zero vs non-zero cases.
<0> e.g., program ; case $? in 0) success things;; 1) exit 1 things;; 2) exit 2 things;; *) default things;; esac
<0> or, if program; then success things; else failure things; fi
<0> in bash an exit status of 0 is taken to mean success, and any other value as failure.
<0> so you might want to reread those with s/success/exit 0/g
<10> oi
<8> i did now of rm only
<8> but when issuing rm -f it spits out this error
<8> mv: missing destination file operand after `/root/trash'
<8> could i filter the $1 and cut any rm arguments from it ?
<0> yes. doesn't sound very unintrusive though.
<8> :D
<8> i was meaning that i won't want to cook a new rm command but just make it as simple as it could be
<0> uh-huh.
<0> anyway, feel free to remove options.
<8> remove options?
<0> yes, parse the words, discarding any that appear to be options.
<8> sed or cut? any example?
<0> uh. no. a loop.
<8> mmm
<3> umm
<8> can't get it
<8> could i tell awk to print all arguments above certain arg number, like in "awk '{print $3}'", i want it to print $3 and all above like $4 and $5..etc
<11> Hi all, I know you can iterate over files by doing 'for $file in "$(ls)"', but is there a way to only get directories? I'm trying this script (http://rafb.net/p/P6qcKN67.html), but it appears to get the directories as one long string (separated by newlines).
<7> find
<7> tut tut
<7> plus there's the mess with spaces in the names
<7> !space
<7> GAH!
<7> i can't use that bot!
<0> m0dY: no, but you can use a loop.
<7> lasindi, look up the FAQ
<0> !faq
<12> No matches found at http://wooledge.org/mywiki/BashFaq
<11> floyd_n_milan: ok
<8> twkm, like ?
<0> there's the whole faq.
<7> twkm, how does one search a particular term?
<0> put a word after the trigger.
<8> twkm, i know how to make a loop, just can't get how will it be much helpful
<7> !space
<0> sigh.
<7> oh
<7> sorry
<7> !faq space
<12> http://wooledge.org/mywiki/BashFaq#faq20 -- How can I find and deal with file names containing newlines, spaces or both?
<7> ah cool
<7> twkm, thanks
<0> i prefer to load the whole faq in my browser then use it's own toc and the browser string searching.
<7> yeah i do the same
<0> m0dY: loop from 3 to NF, and printf "%s" each field.
<7> hmm pitfalls should be in the topic methinks
<11> floyd_n_milan: I'm trying "find . -type d -print" as suggested in the FAQ, but I have the same problem as before.
<8> okay
<8> will'nt this be a bit slow?!
<0> what do you care?
<8> np
<7> lasindi, use the very last solution
<0> my guess is he didn't try any of the solutions, since none of them use -print.
<11> I'm trying this one: http://wooledge.org/mywiki/BashFaq#head-cf4fc2a4f5a67ebb598de53ddd85bbeb7a9cbb63
<11> Maybe we're talking about different solutions.
<7> look up #20
<0> the only faq link presented here is for #20, which does not use -print.
<0> are you actually trying to do what #10's question suggests?
<0> "recreate a directory structure, without the files"
<11> No, but I'm also not trying (at least intentionally) to do what #20 suggests.
<7> XY
<7> what exactly do you want to do?
<11> I'm trying to just get a list of the directories, without the files.
Return to
#bash
or
Go to some related
logs:
banshee m4a plugin dapper
#gentoo
#mysql
#gentoo
ubuntu+xvid+pixelated
suse openoffice can't open doc
suspend to ram linux asus a6
undefined reference to `pixelRGBA'
sqlite check existence of a column
named.conf keeps reverting
|
|