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Floating point numbers in bash or csh
They just don’t pass through!!
Bash or csh are unable to use floating numbers, as they understand numbers containing decimal point as strings. So, only actions with full numbers can be performed in these shells.
Useful small things for c-shell
> When using if statement in c-shell you have to be careful with the syntax:
if (condition) then
(commands)
endif
or if you want to add another case then
if (condition) then
(commands)
else
(commands)
endif
Important to remember that after “then” you must continue to a new line.
> “exit” is the one option to work with if statement, since “break” works only with foreach/while
> If you want to assign the output of a command to a variable the \n you have to place this into backticks ` … ` like:
set test = `grep "test text" temp`
While loop in C-shell scripts
When using the while loop in C-shell scripting the usual stucture is:
while (expression)
commands
…
end
BUT, you need to add an empty line or a comment after end in order for the loop to work!