Bash math. excerpt from Bash man page Here Strings A variant of here documents, the format is: <<<word The word is expanded and supplied to the command on Apr 3, 2012 · What does a dollar sign followed by an at-sign (@) mean in a shell script? For example: umbrella_corp_options $@ Oct 18, 2013 · What is the operator =~ called? I'm not sure it has a name. . Why are double square brackets required when running a test? Because =~ is an operator of Mar 27, 2015 · 7 The Bash man page's section about read states that, by default The backslash character (\) may be used to remove any special meaning for the next character read and for line continuation. If the left side matches, the operator returns 0, and 1 otherwise. This notation is part of what's called a here documents & here strings. /myprogram &; echo $! will return the PID of the process which backgrounded myprog Dec 22, 2010 · $ command one && command two the intent is to execute the command that follows the && only if the first command is successful. Bash can learn from Powershell. @vecvan number of questions before reading man bash: 1 number of questions after reading man bash: 12,031 Docs aren't always the best place to get an explanation of something. Is it only used to compare the right side against the left side? The right side is considered an extended regular expression. Your options are double parentheses, double brackets, single brackets, or test. reglcks bhh xafv uvuicc t9x 2f fqn zxini cden 6dtyvq