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Comments:
<0> y0
<1> sup guys.. im just starting bash scripting and i need to know if there is a statement equivilent to and... like if this = that AND this = that then print "blah blah"
<0> if [ foo ] && [ bar ]; then echo "blah blah"; fi
<0> for example
<2> christ
<0> always depends on your needs
<1> thx man
<0> [[ foo && bar ]]
<0> also
<0> [ foo -a bar ]
<0> depends also what foo and bar is
<0> native arithmetic: if (( foo < 4 && bar > 3)); then ..
<1> im dealing with text.. not numbers soo much
<0> [ "$foo" = "text" ] && [ "$bar" = "other text" ]
<0> [[ $foo = text && $bar = "other text" ]]
<1> if (( foo = "this" && bar = "that")); then echo "bf;lajdf;l"
<0> etc...
<0> (()) is math
<1> okay
<0> [ is the traditional UNIX test command (man test/ help test; [ ] is the same)
<1> now in the "$foo" part.. do you really need the quotes...?
<0> [[ ]] is bash's replacement of [
<0> yes, you need them
<0> [ is a normal command
<0> [ this text = this text ] fails
<0> because [ arg1 arg2 = arg4 arg5 ]
<0> and you want [ arg1 = arg3 ]
<0> [ "$foo" = text ]
<0> i mean
<0> you can't be sure that $foo is without spaces
<0> space is the command-argument delimiter in this case.
<0> compare echo foo bar to echo "foo bar"
<1> okay
<1> ill be right back.. gotta restart the system
<0> uh
<0> windows?
<3> i guess so
<3> poor fella
<1> okay.. back
<1> is there anyway that that i can echo something without it going to a new line?
<0> help echo
<0> man echo
<0> (help for the builtin bash echo, man for /bin/echo or wherever it resides on your system)
<1> what about shading p***words with *... is that possible?
<0> not directly. though, you're always able to write functions that cover your wishes. it's a programming language...
<0> however
<0> read -s disables the auto echo on your terminal while scanning stdin
<0> that comes close to what you asked
<1> yeah... thx
<1> read -s p*** <- so i would do it like that
<0> shading p***words with * is nonsens anyways, as everybody sees how long my pw is - and if he knows me good enough ... etc...
<1> if p*** is the variable
<0> yea. and $p*** contains the result
<1> okay
<0> however, "help read"
<1> now i dont have to put a $ in the read line correct?
<0> no. $foo is always a reference to the content of the variable "foo"
<0> it bgets substituted
<1> oh okay
<0> read wants actually a variable NAME
<4> Hi
<4> how do I output to a file and print it on screen?
<1> http://paste.uni.cc/8837
<5> PumpkinPie: tee
<6> eduhat: did you know, that read has a parameter -p "prompt: " (no, you obviously didn't)
<0> i referenced "help read" somewhere above IIRC
<1> blackpenguin: what do you mean? what would that do.. im gunna go read 'help read'
<1> i dont understand...
<1> what would the -p param do for me?
<0> it's simple english text
<7> goes GNU Find have a channel? trying to negate a match, eg find -iregex ".*.(^blahblah).*.cpp"
<7> tried the ^ before the (, \'ing the (s, e, using !, etc
<1> TheBonsai: what does it do? i dont understand...
<8> find -not ... to negate
<9> find \! -iregex ....
<7> well, i want most of them to match, just wanted to squeeze the following | grep -v down into the regex via negating a certain subpattern. but and -not chained will proably do what i want
<7> theres proably a #pcre or somethign
<10> theres #regex i think
<7> indeed
<7> can i add a callback to be run after every command issued at the prompt (eg, add this command to a history sqlite db)
<7> w/o hacking the c source
<11> hmm
<11> that's an interesting question actually
<11> but I can't think of a way how that could be safely done
<0> i know one to run BEFORE
<0> but not after
<10> what done
<12> hey guys how do i sent commands to a server once i connect using nc in my script
<6> chills: nc reads from stdin
<12> blackpenguin, how do i make it read from my script
<13> how did you use nc?
<12> nc -v www.google.com 80
<12> i want to GET / HTTP 1.0/
<13> it will probably work better with http than random garbage
<12> koala_man, nc just stops after it connects
<13> google rejects such things
<13> and closes the connection
<7> chills: wget, curl, libwww-perl, or ruby-net/http are all better than netcat for scripting HTTP
<12> koala_man, that was just an example
<12> bq, actually i need telnet
<13> you're trying to script telnet?
<13> using nc?
<12> no i just want a bash script that connects to port 23 and commands to the server
<12> i am using nc to open the connection
<13> nc doesn't stop
<13> nc keeps going until the server disconnects
<12> koala_man, so how do i send the server commands
<13> I won't touch the telnet stuff
<12> why not ?
<12> insecure
<13> if you want something to test nc, try echo -e 'GET / HTTP/1.0\nHost: www.google.com\n' | nc www.google.com 80
<12> right
<12> koala_man, yea that worked
<12> koala_man, could you explain to me how this worked
<9> nc connects to port 80 at www.google.com. Then it sends to lines / commands to Google's web-server: First line is the GET / command (to get the default page) using the HTTP v. 1.0 protocol.
<12> isnt it :| in the wrong order
<9> The Host: www.google.com is just iceing on the cake, telling the server (in case it wasn't sure which server itself is) that we want the default page for www.google.com.
<12> right
<13> what order
<12> like shouldnt we first connect and then send the command
<13> nc won't send anything until the connection is established
<12> oh right
<9> If can do this instead: ( sleep 2; echo GET / HTTP/1.0; sleep 2 ) | telnet www.google.com 80
<12> right
<12> echo -e ' p***word/n' | nc www.google.com 23
<12> should work ?
<11> could, yes
<12> hmm
<11> (provided they run telnet server;)
<12> it wasnt google :p
<12> but yea worked
<12> how would i give 4 different commds echo -e ' chills/n' 22342/n whereis bla /n | nc www.google.com 23
<11> you probably want to wait for a proper reply?
<12> ah yea
<11> then welcome to the hell of network coding in bash using netcat
<11> :)
<11> I didn't figure out a better way than three processes... a) read from a fifo | b) netcat | c) parse output and feed commands to the fifo
<12> right
<11> g'night
<9> What is wrong with netcat and expect ?
<12> my first and second commands are wroking
<12> third isnt
<9> Guessing - the third command is being sent before the receiving process is ready.
<11> MiniMax: expect is neat, but you've got posix shell next to anywhere -- you're not as fortunate with expect
<9> Hence you have to use a few sleep's.
<11> or wait for reply
<11> :)
<11> using sickmethod viz above
<11> okay, I'm going to sleep as well
<12> yea making it hold for a feew seconds should work
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