[EMAIL PROTECTED] <[EMAIL PROTECTED]> [2002-12-30 13:30:56 +0100]:
>
> J'ai un fichier "bobola" contenant la ligne suivante "99:12"
> Je veux r?cup?rer uniquement 12 pour faire des calculs arithm?tique avec la
> commande expr.
> Voici les commandes que j'effectue:
My French is poor, sorry. I had a friend translate for me. Roughly
translated as a file containing "99:12" and you have this problem.
> toto=`grep "^99:" bobola | cut -d":" -f2`
> expr $toto + 1
> Voici ce que j'obtiens :
> expr: non-numeric argument
I cannot recreate a problem.
echo 99:12 > bobola
toto=`grep "^99:" bobola | cut -d":" -f2`
expr $toto + 1
13
However! If I make an assumption that you have put a carriage return
at the end of the file because this is a MS-Windows formatted file
then your problem makes sense.
printf "99:12\r\n" > bobola
toto=`grep "^99:" bobola | cut -d":" -f2`
expr $toto + 1
expr: non-numeric argument
Please check the exact contents of your file.
od -c < bobola
You will certainly see other characters there after the number that is
getting placed in the second field after the :.
od -c < bobola
0000000 9 9 : 1 2 \r \n
^^ -- This is bad.
You can use tr to delete those.
tr -d "\r" < bobola | od -c
0000000 9 9 : 1 2 \n
Hope that helps.
Bob
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