I need to create a log file using the following format:

myapp_monday.log
myapp_tuesday.log
….
…
myapp_sunday.log

How do I create log filename with day of the week in it under Linux or Unix operating systems?
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How do I set default printer in my Bash shell under CentOS Linux or FreeBSD unix desktop operating systems?
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How do I use mysqldump command with Unix shell pipes?
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How can I look up IP addresses under UNIX or Linux operating systems using command line options?
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I’ve written a Perl script that connects to our central server for me and it allows me feed data so that I make a timesheet later. How do I run my script when I log out from Apple OS X or Linux / UNIX workstation using bash shell?
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Q. How do I find out which table is consuming resources under MySQL Database server from UNIX shell prompt?
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