Automatic CTRL-D (EOF)
Hi,
I have a script that has to perform a hash over a password.
Problem is that sha512sum expects CTRL-D to be pressed to return to the command prompt.
I've searched all over Google, but either I didn't use the right search strings or there is nothing relevant about this.
Bottom line is that I need this command to print the password hash and returns to the shell automatically:
$ sha512sum | xargs echo "password" | cut -f2 -d' '
Tried:
$ read x; echo "$x" | sha512sum | xargs echo "password" | cut -f2 -d' '
but no good and as a bonus (NOT) the hash is incorrect.
Any help would be appreciated.
Warm Regards,
Mário Gamito
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Words by Mário Gamito [Tue, Mar 11, 2008 at 01:07:54PM +0000]:
Quoted 6 lines
Hi,
I have a script that has to perform a hash over a password. Problem is that sha512sum expects CTRL-D to be pressed to return to the command prompt.
No, it just expects EOF.
Quoted 6 lines
I've searched all over Google, but either I didn't use the right search strings or there is nothing relevant about this.
Bottom line is that I need this command to print the password hash and returns to the shell automatically:
Quoted 7 lines
$ sha512sum | xargs echo "password" | cut -f2 -d' 'Tried:
$ read x; echo "$x" | sha512sum | xargs echo "password" | cut -f2 -d' 'but no good and as a bonus (NOT) the hash is incorrect.
That is because echo adds a \n at the end of the string.
You should also do a silent read (-s):
read -s ; echo -n "$REPLY" | sha512sum | xargs echo "password"
Signature · 11 lines
Jose Celestino
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