Shell Programming and Scripting

Hi

I want to know how to see junk character in a file.
i am not able to see junk character using vi or cat command.
below is the junk char . which i see in host file

Code:

 
 10.178.14.67▒▒▒ ac01sp02-vip

actually it should be like this

Code:

10.178.14.67 ac01sp02-vip

i am using secure CRT tool and change the setting to UTF8 encoding but still i am not able to see junk characters using VI and cat command.

please let me know if there is any command to check this.

for me anything apart from alphabets, number, hyphen sign,
underscore sing, hash sign and dot sign are consider as a junk character

Regards,
Scriptor

Just off to work...
As you do not know what the unicode characters are then see if you can adapt this for your needs:-

https://www.unix.com/shell-programming-and-scripting/212715-another-building-block-binary-file-manipulation.html

Pipe that line through od or hexdump.

in vim you can use "list"

:list

Hi Rudic,

sorry i didn't understand what you mentioned.

can you please elaborate.

thx
Scriptor

However you produce that line, add a pipe symbol and either od (with parameters to modify the result to your satisfaction) or, if available, hexdump (same):

Code:

echo '10.178.14.67▒▒▒ ac01sp02-vip' | hd
00000000  31 30 2e 31 37 38 2e 31  34 2e 36 37 e2 96 92 e2  |10.178.14.67....|
00000010  96 92 e2 96 92 20 61 63  30 31 73 70 30 32 2d 76  |..... ac01sp02-v|
00000020  69 70 0a                                          |ip.|
00000023

See those "e2 96 92" repetitions? That's your "junk" chars.

BTW, cat -vet works for me to show them as well.

Hi Rudic,

i want to know how see/check junk character in a /hosts file if present.
as i am not able to see junk character in /hosts file using vi and cat command using secure CTR .

thx
Scriptor

---------- Post updated 12-06-13 at 09:09 AM ---------- Previous update was 12-05-13 at 06:59 PM ----------

Hi Rudic,

also

Code:

cat -vet

not working for me .
it is just adding a dollar sign in the end of the file

Code:

10.178.14.67    ac01sp02-vip$

thx