I have this relatively simple script that keeps failing. Now I have noticed that two ** have crept in. How can I remove them?
#!/bin/zsh
checkupdate='macOS Ventura'
macos='macOS Ventura'
echo -n $checkupdate | wc -m
echo -n $macos | wc -m
echo "$checkupdate" | tr -dc '[:print:]' | od -c
echo "***************"
echo "$macos" | tr -dc '[:print:]' | od -c
if [[ $checkupdate == $macos ]]; then
echo "ok"
else
echo "bad"
exit 1
fi
Result:
sudo ./test10.sh
13
13
0000000 m a c O S ** V e n t u r a
0000016
***************
0000000 m a c O S V e n t u r a
0000015
bad
before the word "Ventura" are apparently these two **
Background information (Edit 21.11.2023):
The first "macOS Ventura" comes from the command softwareupdate -l.
I copied it one to one from there.
It should then be copied automatically in the finished script, but without these "special characters"
I have succeeded in removing these two ** This is the command where several ** are included
$ softwareupdate -l| od -c
0000000 S o f t w a r e U p d a t e
0000020 T o o l \n \n F i n d i n g a v
0000040 a i l a b l e s o f t w a r e
0000060 \n S o f t w a r e U p d a t e
0000100 f o u n d t h e f o l l o
0000120 w i n g n e w o r u p d a
0000140 t e d s o f t w a r e : \n *
0000160 L a b e l : S a f a r i 1 7 .
0000200 1 V e n t u r a A u t o - 1 7 .
0000220 1 \n \t T i t l e : S a f a r i
0000240 , V e r s i o n : 1 7 . 1 ,
0000260 S i z e : 1 6 2 0 6 3 K i B
0000300 , R e c o m m e n d e d : Y
0000320 E S , \n * L a b e l : m a
0000340 c O S ** V e n t u r a ** 1 3
0000360 . 6 . 2 - 2 2 G 3 2 0 \n \t T i t
0000400 l e : m a c O S ** V e n t u
0000420 r a ** 1 3 . 6 . 2 , V e r s
0000440 i o n : 1 3 . 6 . 2 , S i z
0000460 e : 4 9 2 9 7 9 K i B , R e
0000500 c o m m e n d e d : Y E S ,
0000520 A c t i o n : r e s t a r t ,
0000540 \n * L a b e l : m a c O S
0000560 S o n o m a 1 4 . 1 . 1 - 2
0000600 3 B 8 1 \n \t T i t l e : m a c
0000620 O S S o n o m a 1 4 . 1 . 1
0000640 , V e r s i o n : 1 4 . 1 .
0000660 1 , S i z e : 6 3 7 0 5 4 9
0000700 K i B , R e c o m m e n d e d
0000720 : Y E S , A c t i o n : r
0000740 e s t a r t , \n
0000751
I have constructed this command:
softwareupdate -l | LC_ALL=C tr -cd '\11\12\15\40-\176'
It works perfectly in my test (with the 8 MacBooks) so far. A short explanation:
Output:
$ softwareupdate -l | LC_ALL=C tr -cd '\11\12\15\40-\176' | od -c
0000000 S o f t w a r e U p d a t e
0000020 T o o l \n \n F i n d i n g a v
0000040 a i l a b l e s o f t w a r e
0000060 \n S o f t w a r e U p d a t e
0000100 f o u n d t h e f o l l o
0000120 w i n g n e w o r u p d a
0000140 t e d s o f t w a r e : \n *
0000160 L a b e l : S a f a r i 1 7 .
0000200 1 V e n t u r a A u t o - 1 7 .
0000220 1 \n \t T i t l e : S a f a r i
0000240 , V e r s i o n : 1 7 . 1 ,
0000260 S i z e : 1 6 2 0 6 3 K i B
0000300 , R e c o m m e n d e d : Y
0000320 E S , \n * L a b e l : m a
0000340 c O S V e n t u r a 1 3 . 6 . 2
0000360 - 2 2 G 3 2 0 \n \t T i t l e :
0000400 m a c O S V e n t u r a 1 3 . 6
0000420 . 2 , V e r s i o n : 1 3 .
0000440 6 . 2 , S i z e : 4 9 2 9 7
0000460 9 K i B , R e c o m m e n d e
0000500 d : Y E S , A c t i o n :
0000520 r e s t a r t , \n * L a b e
0000540 l : m a c O S S o n o m a
0000560 1 4 . 1 . 1 - 2 3 B 8 1 \n \t T i
0000600 t l e : m a c O S S o n o m
0000620 a 1 4 . 1 . 1 , V e r s i o
0000640 n : 1 4 . 1 . 1 , S i z e :
0000660 6 3 7 0 5 4 9 K i B , R e c
0000700 o m m e n d e d : Y E S , A
0000720 c t i o n : r e s t a r t ,
0000740 \n
0000741