a way to increment a value in a function?

[b4w]

Is there a way to increment a value in a function?
bash file has 12 lines like this.
espeak -f alice/text/01.txt -w alice/wav/01.wav;
espeak -f alice/text/12.txt -w alice/wav/12.wav;
Note that each line differs only by an incremented digit, occuring twice in each line.
Can the number of lines be decreased?

Sorry, The extension txt is not allowed for attachment. So here is the bash file.
echo "bash alice/bash.txt";
# pgdvd042010/1/11/11.ZIP
unzip alice/11.ZIP -d alice/;
# rpl "*" " " alice/11.txt;

# mkdir alice/text/;
# csplit alice/11.txt -falice/text/ -b%.2d'.txt' "/CHAPTER/" {11} "/End of/";

# mkdir alice/wav/;
espeak -f alice/text/01.txt -w alice/wav/01.wav;
espeak -f alice/text/02.txt -w alice/wav/02.wav;
espeak -f alice/text/03.txt -w alice/wav/03.wav;
espeak -f alice/text/04.txt -w alice/wav/04.wav;
espeak -f alice/text/05.txt -w alice/wav/05.wav;
espeak -f alice/text/06.txt -w alice/wav/06.wav;
espeak -f alice/text/07.txt -w alice/wav/07.wav;
espeak -f alice/text/08.txt -w alice/wav/08.wav;
espeak -f alice/text/09.txt -w alice/wav/09.wav;
espeak -f alice/text/10.txt -w alice/wav/10.wav;
espeak -f alice/text/11.txt -w alice/wav/11.wav;
espeak -f alice/text/12.txt -w alice/wav/12.wav;

# mkdir alice/ogg/;
sox alice/wav/01.wav alice/ogg/01.ogg;
sox alice/wav/02.wav alice/ogg/02.ogg;
sox alice/wav/03.wav alice/ogg/03.ogg;
sox alice/wav/04.wav alice/ogg/04.ogg;
sox alice/wav/05.wav alice/ogg/05.ogg;
sox alice/wav/06.wav alice/ogg/06.ogg;
sox alice/wav/07.wav alice/ogg/07.ogg;
sox alice/wav/08.wav alice/ogg/08.ogg;
sox alice/wav/09.wav alice/ogg/09.ogg;
sox alice/wav/10.wav alice/ogg/10.ogg;
sox alice/wav/11.wav alice/ogg/11.ogg;
sox alice/wav/12.wav alice/ogg/12.ogg;
echo "end";

[kiyop]

How about reading http://stackoverflow.com/questions/1695 ... es-in-bash ?

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#!/bin/bash
a=1
while [ $a -le 12 ];do
if [ $a -lt 10 ];then b="0$a";else b=$a;fi

COMMAND_AS_YOU_LIKE_USING_$b

a=$[a+1]
done

ADDED at Wed Oct 14 21:15:42 JST 2015;

The code suggested by Mute Ant in the following post is better than the above code of mine.
Thank Mute Ant for posting better command

[Mute Ant]

They look like numbers, but bash stores them as text...

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for a in {101..112} ; do b=${a: -2} && sox alice/wav/$b.wav alice/ogg/$b.ogg ; done

[HarborView]

I like the C derived code.

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for (( n=1; n<=12; n++ )); do
    a="0"$n
    b=${a:(-2)}  # Grabs the  last 2 characters of a string.
    echo $b
done

[HarborView]

After seeing Mute Ant's solution I was inspired to fool around and see what error message I would get. Instead I discovered a sort of left zero function in Bash.

Code: Select all

#!/bin/bash
:<<INTRO
left-zero.sh, dhm, Nov'15
Illustrating an odd left zero fill technique in Bash.
However, if you put a string like 008 or 039 as a number you will get an
error message and possibly an abend.  

If someone knows an "isnumeric" test in Bash, please speak up.
INTRO

for LeftZero in {001..100} ; do

  echo -n $LeftZero

  (( ++k % 10 == 0 )) && echo || echo -en "\t"  # print columns of 10
done
echo

[b4w]

Thank you all. My new bash file works good, but could be improved. But to stay on topic, I want to replace 12 with *, run loop until error, run loop until no more data. Or mabye put the 12 into array. mabye use break statement.
for i in {01..12}; espeak -f ${OUT}text/$i.txt -w ${OUT}wav/$i.wav; done
error= Failed to read file 'alice/text/{01..*}.txt'
I tried to upload here, but got this error. "Sorry, the board attachment quota has been reached." So here is my new Alice bash file. I am also working on the bible, which is much more complicated. If you would like to help with that, tell me where to send it.

echo "bash ebook/bash/Alice.txt This Debian bash file converts project gutenberg, from http://www.gutenberg.org/cdproject/pgdv ... so.torrent, pgdvd042010/1/11/11.ZIP Alices Adventures in Wonderland into audio files. 406mb, 5 minutes.";
echo "install required packages. requires root privledge.";
# apt-get install --allow-unauthenticated -y espeak sox;
echo "define path.";
# ${IN} origional zip file location.
IN="/media/r/seagate/a/document/gutenberg/pgdvd042010/1/11/11.ZIP";
# ${OUT} put everything into this location, to be overwriten.
OUT="ebook/alice/";
echo ${IN} ${OUT}; rm -r ${OUT}; mkdir -p ${OUT};
echo "unzip origional file to its default filename."; cp ${IN} ${OUT}; unzip ${OUT}11.ZIP -d ${OUT};
echo "create shadow file to modify."; cp ${OUT}11.txt ${OUT}a.txt;
echo "remove items not appropiate for speech."; rpl "*" " " ${OUT}a.txt;
echo "split book into chapters."; mkdir ${OUT}text/; csplit ${OUT}a.txt -f${OUT}text/ -b%.2d'.txt' "/CHAPTER/" {11} "/End of/";
echo; echo -n "convert txt to wav"; mkdir ${OUT}wav/;
for i in {01..12}; do echo -n " $i"; espeak -f ${OUT}text/$i.txt -w ${OUT}wav/$i.wav; done
echo; echo -n "convert wav to ogg"; mkdir ${OUT}ogg/;
for i in {01..12}; do echo -n " $i"; sox ${OUT}wav/$i.wav ${OUT}ogg/$i.ogg; done
echo "end";
# play ${OUT}ogg/01.ogg;

[GarryRicketson]

@Unread postby b4w » Please start using

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[code]Code Boxes

[/code]
for your code:

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for i in {01..12}; espeak -f ${OUT}text/$i.txt -w ${OUT}wav/$i.wav; done
error= Failed to read file 'alice/text/{01..*}.txt' 

I tried to upload here, but got this error. "Sorry, the board attachment quota has been reached."

You can not attach files on this forum.Attachments, How to post a screen shot and use code boxes
Thank you.

[kiyop]

Thank you all. My new bash file works good, but could be improved. But to stay on topic, I want to replace 12 with *, run loop until error, run loop until no more data. Or mabye put the 12 into array. mabye use break statement.
for i in {01..12}; espeak -f ${OUT}text/$i.txt -w ${OUT}wav/$i.wav; done
error= Failed to read file 'alice/text/{01..*}.txt'

I am confused.
You cannot replace "12" with "*".
"*" has special meanings.
1) All files in the current working directory. You can check by

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ls *

2) O or some itteration of the word before it.

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echo "BAAAAACK"|sed -e "s/A*/A/g"

Maybe

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for i in $(ls ${OUT}text/*.txt);do espeak -f $i -w $(echo $i|sed -e "s/${OUT}text\/\(.*\)\.txt/${OUT}wav\/\1\.wav/"); done

[kiyop]

echo "bash ebook/bash/Alice.txt This Debian bash file converts project gutenberg, from http://www.gutenberg.org/cdproject/pgdv ... so.torrent, pgdvd042010/1/11/11.ZIP Alices Adventures in Wonderland into audio files. 406mb, 5 minutes.";
echo "install required packages. requires root privledge.";
# apt-get install --allow-unauthenticated -y espeak sox;
echo "define path.";
# ${IN} origional zip file location.
IN="/media/r/seagate/a/document/gutenberg/pgdvd042010/1/11/11.ZIP";
# ${OUT} put everything into this location, to be overwriten.
OUT="ebook/alice/";
echo ${IN} ${OUT}; rm -r ${OUT}; mkdir -p ${OUT};
echo "unzip origional file to its default filename."; cp ${IN} ${OUT}; unzip ${OUT}11.ZIP -d ${OUT};
echo "create shadow file to modify."; cp ${OUT}11.txt ${OUT}a.txt;
echo "remove items not appropiate for speech."; rpl "*" " " ${OUT}a.txt;
echo "split book into chapters."; mkdir ${OUT}text/; csplit ${OUT}a.txt -f${OUT}text/ -b%.2d'.txt' "/CHAPTER/" {11} "/End of/";
echo; echo -n "convert txt to wav"; mkdir ${OUT}wav/;
for i in {01..12}; do echo -n " $i"; espeak -f ${OUT}text/$i.txt -w ${OUT}wav/$i.wav; done
echo; echo -n "convert wav to ogg"; mkdir ${OUT}ogg/;
for i in {01..12}; do echo -n " $i"; sox ${OUT}wav/$i.wav ${OUT}ogg/$i.ogg; done
echo "end";
# play ${OUT}ogg/01.ogg;

This is the code (shell script), isn't it?

To deal all the files the name of which end with ".txt" in the directory "text", for example,

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curdir=$PWD
IN="/media/r/seagate/a/document/gutenberg/pgdvd042010/1/11/11.ZIP"
OUT="ebook/alice/"
rm -r $OUT; mkdir -p $OUT
cd $OUT
cp ${IN} ./; unzip 11.ZIP -d ./
cp 11.txt a.txt
rpl "*" " a.txt # I do not know rpl command. This may cause problems.
mkdir text; csplit a.txt -ftext/ -b%.2d'.txt' "/CHAPTER/" {11} "/End of/" # I do not know csplit command. This may cause problems.
mkdir wav
for i in text/*.txt; do echo -n " $i"; espeak -f $i -w wav/$(echo $i|sed -e "s@text/\(.*\)\.txt@\1@").wav; done # I do not know espeak command. This may cause problems.
mkdir ogg
for i in wav/*.wav; do echo -n " $i"; sox $i ogg/$(echo $i|sed -e "s@wav/\(.*\)\.wav@\1@").ogg; done # I do not know sox command. This may cause problems.
cd $curdir

[swirly_cloud]

You can read up on regular expressions. They come in handy for some advanced bash scripting.

You can replace all files that include a change within a specific number interval with "test[0-3]filename". This expression will match test0filename, test1filename, test2filename and test3filename.