Comments on: How to generate random password using Bash shell scripting http://www.techpulp.com/blog/2009/01/how-to-generate-random-password-using-bash-shell-scripting/ The pulp of technology Sat, 12 May 2012 22:10:13 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: mike http://www.techpulp.com/blog/2009/01/how-to-generate-random-password-using-bash-shell-scripting/#comment-194 mike Mon, 20 Jun 2011 02:58:30 +0000 http://techpulp.com/?p=474#comment-194 Some Unix environments may have locale settings that will cause "tr" to fail on random input with "tr: Illegal byte sequence". I found that adding: export LANG="C" ...before the echo command fixed the problem for me. Some Unix environments may have locale settings that will cause “tr” to fail on random input with “tr: Illegal byte sequence”. I found that adding:

export LANG=”C”

…before the echo command fixed the problem for me.

]]> By: occhiso http://www.techpulp.com/blog/2009/01/how-to-generate-random-password-using-bash-shell-scripting/#comment-34 occhiso Fri, 25 Jun 2010 01:37:32 +0000 http://techpulp.com/?p=474#comment-34 I also wanted symbols for my password. Using [:graph:] as the set for tr only allows printable characters (not including spaces): echo `</dev/urandom tr -dc [:graph:] | head -c 10` I also wanted symbols for my password.
Using [:graph:] as the set for tr only allows printable characters (not including spaces):

echo `</dev/urandom tr -dc [:graph:] | head -c 10`

]]> By: ksaver http://www.techpulp.com/blog/2009/01/how-to-generate-random-password-using-bash-shell-scripting/#comment-33 ksaver Sun, 31 Jan 2010 04:58:53 +0000 http://techpulp.com/?p=474#comment-33 Is possible to add some special chars to improve the password strength (just enclose it between apostrophes ' ' ): echo `</dev/urandom tr -dc A-Za-z1-9'\!".$%&/()=?|@#[]{}-_.:,;' | head -c12` Is possible to add some special chars to improve the password strength (just enclose it between apostrophes ‘ ‘ ):

echo `</dev/urandom tr -dc A-Za-z1-9′\!”.$%&/()=?|@#[]{}-_.:,;’ | head -c12`

]]> By: Luke http://www.techpulp.com/blog/2009/01/how-to-generate-random-password-using-bash-shell-scripting/#comment-32 Luke Mon, 21 Sep 2009 19:11:21 +0000 http://techpulp.com/?p=474#comment-32 was it really necessary to create a function?? why not just [] #!/bin/bash echo </dev/random tr -dc A-Za-z0-9 | head -c8 [\] there i just turned 6 lines into 2 was it really necessary to create a function??
why not just
[]
#!/bin/bash
echo </dev/random tr -dc A-Za-z0-9 | head -c8
[\]
there i just turned 6 lines into 2

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