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On Thu, Oct 18, 2007 at 03:56:42PM +0100, John Horne wrote: > Running Fedora 7, I noticed that many of the system startup scripts > (in /etc/init.d) use the 'echo' command with a preceeding '$' character. > The scripts use bash. For example in sshd it uses: > > echo -n $"Generating SSH1 RSA host key: " > > A little testing seems to show that it does nothing - i.e. echo does not > display it. It does not seem to matter if I use the external command > '/bin/echo' or let it use the shell builtin 'echo' command. > > So what is the point of the '$'? Could it be some kind of compatibility thing? bash doesn't print the $, but dash and zsh do, and (from memory) csh/tcsh would give an error and not print anything. (Actually, whether zsh prints the $ depends on whether it's followed by single or double quotes.) -- Benjamin A'Lee <bma@xxxxxxxxxxxxxx> http://subvert.org.uk/~bma/ "I like your Christ, I do not like your Christians. Your Christians are so unlike your Christ." - Mahatma Gandhi
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