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Correct the (old) ASCII code is a 7-bit (1 byte = 8 bits).
More information : https: //www.cs.tut.fi/~jkorpela/chars.html

But depends on your charactersettings of your system.



Source :...

IMHO you are foregoing something in your character count:

# cat file
hello

# wc -c file
6 file

# od -ax file
0000000 h e l l o lf
6865 6c6c 6f0a...

I did the following test with bash:

Terminal 1:$ while :; do sleep 1; done &
[1] 46950
$
Terminal 2:$ shopt -s huponexit
$ while :; do sleep 1; done &
[1] 46988

Terminal 3:$ ps -ef | grep...

You do not need to export the variable, you can also use it locally, like so:
LC_ALL=C sort file

The sort order (of the GNU sort command) is determined by the locale you specified in your environment:
$ export LC_ALL=en_US.utf8
$ sort s.txt
aaa
AAA
bbb
ddd
eee
ggg
GGG
$ export...

# grep "\([\"']\).*\1" file

The back reference in grep an only be used as part of the matching. So the first expression would look for a string hello.*hello
The second expression would look if a string between quotes is...

Try:
awk 'NR==FNR{getline v<f; A[$1]=v; next} $1 in A { $2=A[$1] }1' f=file3 file2 file1
or
paste file2 file3 | awk 'NR==FNR{A[$1]=$2; next} $1 in A { $2=A[$1] }1' - file1
or if with...