For short, as shown below:

$ md5sum <<< 'TASCJO3RJMVKWDJKXLZM'
e1b8fa8fe09c295811063bb76cefc337 -

$ ipython
In [1]: from hashlib import md5

In [2]: my_str='TASCJO3RJMVKWDJKXLZM'

In [3]: md5(my_str.encode('utf-8')).hexdigest()
Out[3]: 'e9032994dabac08080091151380478a2'

Any hints for this behavior?

Regards,
HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

"hongy...@gmail.com" <hongyi.zhao@gmail.com> writes:

For short, as shown below:

$ md5sum <<< 'TASCJO3RJMVKWDJKXLZM'
e1b8fa8fe09c295811063bb76cefc337 -

$ ipython
In [1]: from hashlib import md5

In [2]: my_str='TASCJO3RJMVKWDJKXLZM'

In [3]: md5(my_str.encode('utf-8')).hexdigest()
Out[3]: 'e9032994dabac08080091151380478a2'

Any hints for this behavior?

md5("TASCJO3RJMVKWDJKXLZM\n".encode('utf-8')).hexdigest() 'e1b8fa8fe09c295811063bb76cefc337'

--
Ben.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tuesday, October 12, 2021 at 6:25:43 PM UTC+8, Ben Bacarisse wrote:

"hongy...@gmail.com" <hongy...@gmail.com> writes:

For short, as shown below:

$ md5sum <<< 'TASCJO3RJMVKWDJKXLZM'
e1b8fa8fe09c295811063bb76cefc337 -

$ ipython
In [1]: from hashlib import md5

In [2]: my_str='TASCJO3RJMVKWDJKXLZM'

In [3]: md5(my_str.encode('utf-8')).hexdigest()
Out[3]: 'e9032994dabac08080091151380478a2'

Any hints for this behavior?

md5("TASCJO3RJMVKWDJKXLZM\n".encode('utf-8')).hexdigest() 'e1b8fa8fe09c295811063bb76cefc337'

Thank you for pointing this out. I confirmed it with the following command:

$ cat -A <<< 'TASCJO3RJMVKWDJKXLZM'
TASCJO3RJMVKWDJKXLZM$

But how to supply string for md5sum without '\n'?

HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tuesday, October 12, 2021 at 8:19:28 PM UTC+8, hongy...@gmail.com wrote:

On Tuesday, October 12, 2021 at 8:03:58 PM UTC+8, hongy...@gmail.com wrote:

On Tuesday, October 12, 2021 at 6:25:43 PM UTC+8, Ben Bacarisse wrote:

"hongy...@gmail.com" <hongy...@gmail.com> writes:

For short, as shown below:

$ md5sum <<< 'TASCJO3RJMVKWDJKXLZM'
e1b8fa8fe09c295811063bb76cefc337 -

$ ipython
In [1]: from hashlib import md5

In [2]: my_str='TASCJO3RJMVKWDJKXLZM'

In [3]: md5(my_str.encode('utf-8')).hexdigest()
Out[3]: 'e9032994dabac08080091151380478a2'

Any hints for this behavior?

md5("TASCJO3RJMVKWDJKXLZM\n".encode('utf-8')).hexdigest() 'e1b8fa8fe09c295811063bb76cefc337'

Thank you for pointing this out. I confirmed it with the following command:

$ cat -A <<< 'TASCJO3RJMVKWDJKXLZM'
TASCJO3RJMVKWDJKXLZM$

But how to supply string for md5sum without '\n'?

I see. Here it is:

$ echo -n 'TASCJO3RJMVKWDJKXLZM' | md5sum
e9032994dabac08080091151380478a2 -

So, it seems that the `<<<' will also append `\n' at the end of the string.

HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tue, 12 Oct 2021 08:03:55 -0400, hongy...@gmail.com <hongyi.zhao@gmail.com> wrote:

On Tuesday, October 12, 2021 at 6:25:43 PM UTC+8, Ben Bacarisse wrote:

"hongy...@gmail.com" <hongy...@gmail.com> writes:

For short, as shown below:

$ md5sum <<< 'TASCJO3RJMVKWDJKXLZM'
e1b8fa8fe09c295811063bb76cefc337 -

$ ipython
In [1]: from hashlib import md5

In [2]: my_str='TASCJO3RJMVKWDJKXLZM'

In [3]: md5(my_str.encode('utf-8')).hexdigest()
Out[3]: 'e9032994dabac08080091151380478a2'

Any hints for this behavior?

md5("TASCJO3RJMVKWDJKXLZM\n".encode('utf-8')).hexdigest()

'e1b8fa8fe09c295811063bb76cefc337'

Thank you for pointing this out. I confirmed it with the following command:

$ cat -A <<< 'TASCJO3RJMVKWDJKXLZM'
TASCJO3RJMVKWDJKXLZM$

But how to supply string for md5sum without '\n'?

$ echo -n 'TASCJO3RJMVKWDJKXLZM' |md5sum
e9032994dabac08080091151380478a2 -

Regards, Dave Hodgins

--
Change dwhodgins@nomail.afraid.org to davidwhodgins@teksavvy.com for
email replies.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tuesday, October 12, 2021 at 8:03:58 PM UTC+8, hongy...@gmail.com wrote:

On Tuesday, October 12, 2021 at 6:25:43 PM UTC+8, Ben Bacarisse wrote:

"hongy...@gmail.com" <hongy...@gmail.com> writes:

For short, as shown below:

$ md5sum <<< 'TASCJO3RJMVKWDJKXLZM'
e1b8fa8fe09c295811063bb76cefc337 -

$ ipython
In [1]: from hashlib import md5

In [2]: my_str='TASCJO3RJMVKWDJKXLZM'

In [3]: md5(my_str.encode('utf-8')).hexdigest()
Out[3]: 'e9032994dabac08080091151380478a2'

Any hints for this behavior?

md5("TASCJO3RJMVKWDJKXLZM\n".encode('utf-8')).hexdigest() 'e1b8fa8fe09c295811063bb76cefc337'

Thank you for pointing this out. I confirmed it with the following command:

$ cat -A <<< 'TASCJO3RJMVKWDJKXLZM'
TASCJO3RJMVKWDJKXLZM$

But how to supply string for md5sum without '\n'?

I see. Here it is:

$ echo -n 'TASCJO3RJMVKWDJKXLZM' | md5sum
e9032994dabac08080091151380478a2 -

HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 2021-10-12, hongy...@gmail.com <hongyi.zhao@gmail.com> wrote:

On Tuesday, October 12, 2021 at 8:19:28 PM UTC+8, hongy...@gmail.com wrote:

On Tuesday, October 12, 2021 at 8:03:58 PM UTC+8, hongy...@gmail.com wrote: >> > On Tuesday, October 12, 2021 at 6:25:43 PM UTC+8, Ben Bacarisse wrote:

"hongy...@gmail.com" <hongy...@gmail.com> writes:

For short, as shown below:

$ md5sum <<< 'TASCJO3RJMVKWDJKXLZM'
e1b8fa8fe09c295811063bb76cefc337 -

$ ipython
In [1]: from hashlib import md5

In [2]: my_str='TASCJO3RJMVKWDJKXLZM'

In [3]: md5(my_str.encode('utf-8')).hexdigest()
Out[3]: 'e9032994dabac08080091151380478a2'

Any hints for this behavior?

md5("TASCJO3RJMVKWDJKXLZM\n".encode('utf-8')).hexdigest()

'e1b8fa8fe09c295811063bb76cefc337'

Thank you for pointing this out. I confirmed it with the following command:

$ cat -A <<< 'TASCJO3RJMVKWDJKXLZM'
TASCJO3RJMVKWDJKXLZM$

But how to supply string for md5sum without '\n'?

I see. Here it is:

$ echo -n 'TASCJO3RJMVKWDJKXLZM' | md5sum
e9032994dabac08080091151380478a2 -

So, it seems that the `<<<' will also append `\n' at the end of the string.

HZ

From man bash

Here Strings
A variant of here documents, the format is:

[n]<<<word

The word undergoes tilde expansion, parameter and variable expansion, command substitu-
tion, arithmetic expansion, and quote removal. Pathname expansion and word splitting are
not performed. The result is supplied as a single string, with a newline appended, to
the command on its standard input (or file descriptor n if n is specified).


Note the second last line.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 2021-10-12, hongy...@gmail.com <hongyi.zhao@gmail.com> wrote:

But how to supply string for md5sum without '\n'?

$ printf '%s' 'TASCJO3RJMVKWDJKXLZM' | md5
e9032994dabac08080091151380478a2

--
Christian "naddy" Weisgerber naddy@mips.inka.de

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 10/12/2021 7:21 AM, hongy...@gmail.com wrote:

On Tuesday, October 12, 2021 at 8:19:28 PM UTC+8, hongy...@gmail.com wrote:

On Tuesday, October 12, 2021 at 8:03:58 PM UTC+8, hongy...@gmail.com wrote: >>> On Tuesday, October 12, 2021 at 6:25:43 PM UTC+8, Ben Bacarisse wrote:

"hongy...@gmail.com" <hongy...@gmail.com> writes:

For short, as shown below:

$ md5sum <<< 'TASCJO3RJMVKWDJKXLZM'
e1b8fa8fe09c295811063bb76cefc337 -

$ ipython
In [1]: from hashlib import md5

In [2]: my_str='TASCJO3RJMVKWDJKXLZM'

In [3]: md5(my_str.encode('utf-8')).hexdigest()
Out[3]: 'e9032994dabac08080091151380478a2'

Any hints for this behavior?

md5("TASCJO3RJMVKWDJKXLZM\n".encode('utf-8')).hexdigest()

'e1b8fa8fe09c295811063bb76cefc337'

Thank you for pointing this out. I confirmed it with the following command: >>>
$ cat -A <<< 'TASCJO3RJMVKWDJKXLZM'
TASCJO3RJMVKWDJKXLZM$

But how to supply string for md5sum without '\n'?

I see. Here it is:

$ echo -n 'TASCJO3RJMVKWDJKXLZM' | md5sum
e9032994dabac08080091151380478a2 -

So, it seems that the `<<<' will also append `\n' at the end of the string.

HZ

Right, it's saving a string into a temp file and than using that as the
input to the command so, since every line in a POSIX text file must end
in `\n`, `<<<` has to add one. It's equivalent to manually writing:

tmp=$(mktemp) &&
printf '%s\n' 'TASCJO3RJMVKWDJKXLZM' > "$tmp" &&
md5sum < "$tmp"
rm -f -- "$tmp"

Regards,

Ed.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

Ed Morton <mortonspam@gmail.com>:

Right, it's saving a string into a temp file and than using that as
the input to the command so, since every line in a POSIX text file
must end in `\n`, `<<<` has to add one. It's equivalent to manually
writing:

tmp=$(mktemp) &&
printf '%s\n' 'TASCJO3RJMVKWDJKXLZM' > "$tmp" &&
md5sum < "$tmp"
rm -f -- "$tmp"

On my debian linux machine it's more like


(
tmp="$(mktemp)" &&
printf '%s\n' 'TASCJO3RJMVKWDJKXLZM' > "$tmp" &&
exec 0< "$tmp" &&
rm -f -- "$tmp" &&
exec md5sum
)

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Wednesday, October 13, 2021 at 2:23:56 AM UTC+8, Helmut Waitzmann wrote:

Ed Morton <morto...@gmail.com>:

Right, it's saving a string into a temp file and than using that as
the input to the command so, since every line in a POSIX text file
must end in `\n`, `<<<` has to add one. It's equivalent to manually >writing:

tmp=$(mktemp) &&
printf '%s\n' 'TASCJO3RJMVKWDJKXLZM' > "$tmp" &&
md5sum < "$tmp"
rm -f -- "$tmp"

On my debian linux machine it's more like

(
tmp="$(mktemp)" &&
printf '%s\n' 'TASCJO3RJMVKWDJKXLZM' > "$tmp" &&
exec 0< "$tmp" &&
rm -f -- "$tmp" &&
exec md5sum
)

I'm on Ubuntu 20.04.2 LTS, both the above two methods work, but why do you prefer the latter?

HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tuesday, October 12, 2021 at 9:30:08 PM UTC+8, Christian Weisgerber wrote:

On 2021-10-12, hongy...@gmail.com <hongy...@gmail.com> wrote:

But how to supply string for md5sum without '\n'?

$ printf '%s' 'TASCJO3RJMVKWDJKXLZM' | md5

I don't have md5 command, but instead md5sum.

e9032994dabac08080091151380478a2

--
Christian "naddy" Weisgerber na...@mips.inka.de

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Tuesday, October 12, 2021 at 9:12:10 PM UTC+8, William Unruh wrote:

On 2021-10-12, hongy...@gmail.com <hongy...@gmail.com> wrote:

On Tuesday, October 12, 2021 at 8:19:28 PM UTC+8, hongy...@gmail.com wrote:

On Tuesday, October 12, 2021 at 8:03:58 PM UTC+8, hongy...@gmail.com wrote:

On Tuesday, October 12, 2021 at 6:25:43 PM UTC+8, Ben Bacarisse wrote: >> > > "hongy...@gmail.com" <hongy...@gmail.com> writes:

For short, as shown below:

$ md5sum <<< 'TASCJO3RJMVKWDJKXLZM'
e1b8fa8fe09c295811063bb76cefc337 -

$ ipython
In [1]: from hashlib import md5

In [2]: my_str='TASCJO3RJMVKWDJKXLZM'

In [3]: md5(my_str.encode('utf-8')).hexdigest()
Out[3]: 'e9032994dabac08080091151380478a2'

Any hints for this behavior?

md5("TASCJO3RJMVKWDJKXLZM\n".encode('utf-8')).hexdigest()

'e1b8fa8fe09c295811063bb76cefc337'

Thank you for pointing this out. I confirmed it with the following command:

$ cat -A <<< 'TASCJO3RJMVKWDJKXLZM'
TASCJO3RJMVKWDJKXLZM$

But how to supply string for md5sum without '\n'?

I see. Here it is:

$ echo -n 'TASCJO3RJMVKWDJKXLZM' | md5sum
e9032994dabac08080091151380478a2 -

So, it seems that the `<<<' will also append `\n' at the end of the string.

HZ

From man bash

Here Strings
A variant of here documents, the format is:

[n]<<<word

The word undergoes tilde expansion, parameter and variable expansion, command substitu-
tion, arithmetic expansion, and quote removal. Pathname expansion and word splitting are
not performed. The result is supplied as a single string, with a newline appended, to
the command on its standard input (or file descriptor n if n is specified).

Note the second last line.

Thank you for pointing this out.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

David W. Hodgins wrote:

On Tue, 12 Oct 2021 08:03:55 -0400, hongy...@gmail.com <hongyi.zhao@gmail.com> wrote:

But how to supply string for md5sum without '\n'?

$ echo -n 'TASCJO3RJMVKWDJKXLZM' |md5sum
e9032994dabac08080091151380478a2 -

Only if you use a version of echo that does not conform to UNIX
requirements (even though it may conform to POSIX requirements).
POSIX allows -n to be special, but UNIX does not. A UNIX-conforming
echo does this:

$ echo -n foo
-n foo
$

The portable way to omit the newline is to use printf.

--
Geoff Clare <netnews@gclare.org.uk>

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Thursday, October 14, 2021 at 8:41:05 PM UTC+8, Geoff Clare wrote:

David W. Hodgins wrote:

On Tue, 12 Oct 2021 08:03:55 -0400, hongy...@gmail.com <hongy...@gmail.com> wrote:

But how to supply string for md5sum without '\n'?

$ echo -n 'TASCJO3RJMVKWDJKXLZM' |md5sum
e9032994dabac08080091151380478a2 -

Only if you use a version of echo that does not conform to UNIX
requirements (even though it may conform to POSIX requirements).
POSIX allows -n to be special, but UNIX does not. A UNIX-conforming
echo does this:

$ echo -n foo
-n foo
$

The portable way to omit the newline is to use printf.

Thank you for pointing this out.

HZ

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)