isto é o que eu descobri na classificação de uma matriz que já tinha seus elementos declarados como tipo int
#!/bin/bash
#sorting an "predeclared" array
typeset -i store BigNum
let store=0 BigNum=0
number=([0]=11140344 [1]=3 [2]=0 [3]=2 [4]=11140345 )
for (( a=0; a <= 5 ; a++ ));
do
if (( number[a+1] < number[a] )); then
store=number[$a]
number[$a]=number[$a+1]
number[$a+1]=$store
BigNum=$store
fi
# I think BIGNUM can be passed back in a function by writing
# return $BIGNUM its passing an array that is the BIG PROBLEM!!!!
echo $BigNum " BIG NUM always returns the biggest number"
done
este é o FOR LOOP com o qual estou trabalhando, está saindo dos limites.
x=0
while [[ $x -lt 1 ]]; do
# my main loop I am working with
# to get that greatest number
# out of the odd ball numbered
# element put it in order then
# get it LOOP
########
for(( a=0; a<${#lostsongs[@]}; a++ ));
do
if [[ ${lostsongs[a+1]}<${lostsongs[a]} ]]; then
store="${lostsongs[a]}"
lostsongs[a]="${lostsongs[a+1]}"
lostsongs[a+1]=store
echo "$store val in if 1st for loop larger val"
fi
# echo $store " Larger Bigger number post if statement"
let x++
done
#################
let x++
done
esta é a saída do código bom do meu primeiro loop (com set -x).
echo 3 4 1 2 ' all of the array elements filled are in this order'
é tudo o que estou falando com quatro (4) elementos.
a saída desse loop é esta
+ echo 'store val in if 1st for loop larger val'
store val in if 1st for loop larger val
+ let x++
+ (( a++ ))
+ (( a<1134 ))
+ [[ '' < store ]]
+ store=store
+ lostsongs[a]=
+ lostsongs[a+1]=store
+ echo 'store val in if 1st for loop larger val'
store val in if 1st for loop larger val
minha suposição lógica é que
(( a<1134 ))
é meu array.length quando deveria ser 4, que o BASH está vendo fazendo com que o meu loop execute e enlouqueça.
Tudo o que eu gostaria é que alguém me ajude e me escreva um loop de controle para parar meu FOR LOOP na contagem de 4 como escrevendo todos esses tipos diferentes de loops de todas as maneiras diferentes que podem ser escritas para tentar descobrir como para controlar o meu FOR LOOP e pará-lo no 4 está fazendo anotações, me deixando louca.
seria uma grande ajuda, então não posso desistir de praticar minha seta até o último comando Entrar, então Ctrl C reflexos, e escrever todo tipo de loop conhecido pela humanidade e chegar a coisas mais importantes, como aprender a escrever esta sintaxe BASH em conseguir que o FOR LOOP funcione também e tudo isso. se isso não estiver fora de questão, esperamos que não é. ............................
ADICIONADO FAZER A UMA PESSOA PEDINDO MAIS INFORMAÇÕES, ASSIM QUE ISSO É TUDO - NÃO gritar apenas as tampas, de modo que uma pessoa perceba sem precisar adicionar a palavra SEX.
este primeiro script funciona no que estou trabalhando Eu quero adicioná-lo a este script atualize a matriz lostsongs no
#!/bin/bash
#
########################################################################
########################################################################
# for GNU/Linux #
# BASH Script #
# #
# converts all the mp3 files in a directory from whatever bitrate to #
# 128k bitrate. #
# Then adds an underscore between the artist_name_TITLE_ALBUM from the #
# metadata creates a new file of the same, and Directory and #
# subdirectory in the same manner eleminating the need to use quotes to#
# malnipulate the data and directiories. then moves the new file into #
# same directories and subdirectories. Then deletes the old file. #
# ffmpeg only takes it to 192k. #
# You can change it to any bitrate you want (WITHIN_SPECS) and even #
# add the other -args to include the other features included #
# with ffmpeg -- works with version ffmpeg 0.8.9-6:0.8.9-1 #
# put it in any directory then give it the path you are working on then run it.
#$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ #
#& Written By: Mikie Heras Dec. 04, 2013 #
#& FINISHED DEC. 5, 2013 & #
#&##########################################&###########################
#&##########################################&###########################
typeset -i xf mf sn bn hn
let xf=1 mf=0 bn=5 hn=6
lostsongs[0]=4
#get MAX NUMBER -- mp3 files in folder
#MAXNUM="$(ls $PWD/*.mp3 | wc -l)"
#so it can sit in the home dir and search what ever folder
# I want
MAXNUM="$(find ~/music/ -type f -name *.mp3 | wc -l )"
mf=MAXNUM #set the count down number
echo ; echo ; echo ; echo ; echo
#inform the user how many files are in the folder
echo $MAXNUM " mp3's in folder MUSIC"
sleep 3
echo ; echo ; echo ; echo ; echo
#search out all the mp3 files in the directory
# set how many I want to convert at a time
find ~/music/ -type f -name "*.mp3" | while [ $xf -le 100 ] ;
do read FILENAME;
#############################################################
#get the metadata tags off the mp3's using exiftool-perl
#################
ARTIST="'exiftool -Artist "$FILENAME" -p '$Artist''"
TITLE="'exiftool -Title "$FILENAME" -p '$Title''"
ALBUM="'exiftool -Album "$FILENAME" -p '$Album''"
#replaces all the crap and the spaces
#between the names with an underscore
#"${x// /_}" meaning "${varName//search pattern/replace with}"
newArt="${ARTIST// /_}"
newTit="${TITLE// /_}"
newAlb="${ALBUM// /_}"
echo $newArt
echo $newTit
echo $newAlb
#just for good mesure let me see what's going
echo $FILENAME " before set stipping down.."
sleep 2
#strip the old file name off the path from FILENAME
#over kill but in good measure
c=$FILENAME
xpath=${c%/*}
xbase=${c##*/}
xfext=${xbase##*.}
xpref=${xbase%.*}
path=${xpath}
pref=${xpref}
ext=${xfext}
##############################################################
# assign the file a new name
# if LOSTSONG no metadata then add a number to the array[0]
# 1st element [zero] then incurment hn by one 1 for checking to
# be sure that it is the right file in the MOVING FILES section
#
######
if [[ ! -n "$newArt" && ! -n "$newTit" && ! -n "$newAlb" ]] ; then
echo "${lostsogns[0]} that is Lsogn num.. before going to sogn"
newFile="I_HAVE_NO_IDEA-WHO-I-AM-(Lost-Song-Number-("${lostsongs[0]}"))-192k.mp3"
(( lostsongs[0]++ ))
let hn++
elif [[ -n "$newArt" && -n "newTit" && ! -n "$newAlb" ]] ; then
newFile="Artist-${newArt}_Title-${newTit}_192k.mp3"
else
newFile="Artist-${newArt}_Title-${newTit}_Album-${newAlb}_192k.mp3"
fi
echo $newFile "new file name ..."
sleep 3
##############################################################
# convert the file to 128k using ffmpeg version 0.8.9-6:0.8.9-1
###
ffmpeg -b 128k -vol 425 -i "$FILENAME" "$newFile"
##############################################################
# MAKE DIRs
#############
if [[ ! -d ~/music2 ]] ;then
mkdir ~/music2/
fi
if [[ ! -d ~/music2/"${newArt}" ]]; then
echo "making newDir $newArt ..."
mkdir ~/music2/"${newArt}"/
fi
if [[ -d ~/music2/"${newArt}" && \
! -d ~/music2/"${newArt}"/"${newAlb}" ]] ; then
echo "making dir/sub $newArt / $newAlb .."
mkdir ~/music2/"${newArt}"/"${newAlb}"/
fi
if [[ ! -d ~/music2/lostsongs/ ]] ; then
mkdir ~/music2/lostsongs/
echo "making Lost Dir .."
fi
##################################################################
#
## MOVE THE FILES
#this siganls out the newfile uneekly
#if no counter movement then no lost song was found
#to insure that the $newFile is one that has a place in a diffetent
#folder named lostsongs "${foo[0]}" < c && a -gt b
###################################################################
if [[ ! -n "$ARTIST" && ! -n "$TITLE" && ! -n "$ALBUM" ]] ; then
if [[ "${lostsongs[0]}" < bn && hn > bn ]] ;
then
echo "Found a Lost Sogn Yo! .."
mv "${newFile}" ~/music2/lostsongs/
let bn++
fi
fi
## if the newAlb is asigned and not empty
# what to do to check it
if [[ -n "$newArt" && -n "${newAlb}" ]] ; then
echo "-n newAlb true -- moving file \
to $newAlb -- newAlnum $newArt "
mv -f "${newFile}" ~/music2/"${newArt}"/"${newAlb}"/
fi
if [[ ! -n "${newAlb}" ]] ; then
echo " -n $newAlb newAlbum not present moveing to $newArt \
new artist.."
mv -f "${newFile}" ~/music2/"${newArt}"/
fi
###############################################################
# getrid of the old file
###############################
killfile="${pref}.${ext}"
mv "${path}/$killfile" "${killfile//*/killme}"
rm "killme"
############
#
#Used for MAXNUM or checksum in loop to tell script how many files to convert
# in the run
#############
let xf++
let mf-- # lets the user know how many files left to do
echo ; echo ; echo ; echo ; echo ; echo "$mf ..... mp3/s left to do ..."
echo ; echo ; echo ; echo ; echo
done
# with this new code I am working on to update that lostsongs[0]
# I am having problems with this global asignment too. I googled how to
# make an array global and it seems I am not the only one that has this
# problem - I have yet to find the solution it seems that bash ver has
# a lot to do with it too.
# GNU bash, version 4.2.37(1)-release (i486-pc-linux-gnu)
#
# it is a string val 1 2 3 4 5 6 7 8 9 10 ......
#
# with this a=0 ; a < $num or ${array[@ ' num'] being a int? ; a++
#
# in C++ it easier all I got a do is, for ( int a ; a < whatever int ; a++ )
#
# if I write it ( $a ; .. to get to the valule inside that variable I get
# an error too then there is the adding inside the element itself [a+1]
# that I am not sure if bash can do that even.
#
# when I check this array after I have filled it with just 4 elements
# (for test purposes) outside that first loop I get 0
# BASH don't have a strToint() and IntTostr() that I can find
# to make it easier
#
#!/bin/bash
set -x
typeset -i xf mf sn bn hn n snewnum d store
let xf=1 mf=0 bn=3 hn=4 n=1 snewnum=0 store=0 n=0
declare -gA lostsongs # this does not even work
# declare -a lostsongs # this does not work
# no globalization of array achieved yet
lostnum="$(find /home/userx/testscripts/ -type f -name "*.mp3" | wc -l)"
###################################################
#
# FOR updating the lost song files so as not to
# over write any
####################################
find /home/userx/testscripts/ -type f -name "*.mp3" | while [[ $n -lt lostnum ]] ; do
read FILE;
#echo $FILE "<-- that is file"
nstring=${FILE##*/} #gets just the file name
lstring=${nstring##I*"("} #chops off Lside to the ( leaving num
rstring=${lstring%%")"*} #chops off Rside to the ) leaving the num
snewnum=$rstring #holds the char of type num
lostsongs[$n]=$snewnum
echo "lostsongs[$n] = ${lostsongs[n]} fill array"
echo ${lostsongs[*]} " all the shit"
let n++
done
echo
echo
echo ${#lostsongs[@]}
echo
echo
echo
echo ${lostsongs[*]}
#get the hightest number then pass it
#needs to be array[0]=greatest number then reset count
#####################
#for(( a=0; a<${#lostsongs[@]}; a++ ));
#this for does not work because of the -lt synax
#for (( a=0 ; a -lt ${#lostsongs[@]}; a++ ));
for (( a=0 ; a < 4 ; a++ )) ;
do
## Move Larger Values to the right.
# this one don't work
# because there are no spaces around "<", [[ only sees one,
#non-empty, argument, and returns true every time.
# if [[ ${lostsongs[a+1]}<${lostsongs[a]} ]]; then
# this one works
if [[ ${lostsongs[$a+1]} -lt ${lostsongs[$a]} ]]; then
# if (( lostsongs[a+1] < lostsongs[a] )); then
store="${lostsongs[a]}"
lostsongs[a]="${lostsongs[$a+1]}"
echo ${lostsongs[a+1]}
echo "${lostsongs[a+1]}"
lostsongs[a+1]=$store
echo "$store val in if 1st for loop larger val"
fi
# echo $ store "Publicação do número Biger maior se statment"
done
##
#with the way that the last "test script is written in this writting this
#is the out put
#
###
userx@bw-crunchbang:~/testscripts$ ./testnum
+ typeset -i xf mf a sn bn hn n snewnum d store
+ store=0
+ let xf=1 mf=0 bn=3 hn=4 n=1 snewnum=0
+ n=0
+ declare -gA lostsongs
++ wc -l
++ find /home/userx/testscripts/ -type f -name '*.mp3'
+ lostnum=4
+ [[ 0 -lt lostnum ]]
+ read FILE
+ find /home/userx/testscripts/ -type f -name '*.mp3'
+ nstring='I_HAVE_NO_IDEA-WHO-I-AM-(Lost-Song-Number-(3))-192k.mp3'
+ lstring='3))-192k.mp3'
+ rstring=3
+ snewnum=3
+ lostsongs[$n]=3
+ echo 'lostsongs[0] = fill array'
lostsongs[0] = fill array
+ echo 3 ' all the shit'
3 all the shit
+ let n++
..............
+ echo 'lostsongs[3] = fill array'
lostsongs[3] = fill array
+ echo 3 4 1 2 ' all the shit'
3 4 1 2 all the shit
+ let n++
+ [[ 4 -lt lostnum ]]
+ echo
+ echo 0
0
+ echo
+ (( a=0 ))
+ (( a < 4 ))
+ [[ '' -lt '' ]]
+ (( a++ ))
+ (( a < 4 ))
+ [[ '' -lt '' ]]
+ (( a++ ))
+ (( a < 4 ))
+ [[ '' -lt '' ]]
+ (( a++ ))
+ (( a < 4 ))
+ [[ '' -lt '' ]]
+ (( a++ ))
+ (( a < 4 ))
userx@bw-crunchbang:~/testscripts$
Portanto, o primeiro problema é tornar essa matriz Global de alguma forma. Como eu disse, o Google está cheio de como eu faço uma matriz global com até agora eu não encontrei uma resposta para os outros que fizeram essa pergunta.
o segundo está transformando Char em valores Int para trabalhar com 'Eu acho que são os dois problemas que tenho outro que o BASH permite Math no lado do elemento? [a + 1] [a * 1] (vezes x 1) [a / 1] div e [a-1] par?
Isso está errado:
if [[ ${lostsongs[a+1]}<${lostsongs[a]} ]]; then
porque não há espaços em torno de "<", [[ apenas vê um argumento não vazio e retorna true todas as vezes.
Você quer
if [[ ${lostsongs[a+1]} -lt ${lostsongs[a]} ]]; then
ou
if (( lostsongs[a+1] < lostsongs[a] )); then