Similar question to How to keep from duplicating path variable in csh.
But I don't use csh.
PATH=${SOMETHING}:${PATH}
How do I remove duplicates from PATH.
I use this oneliner, but it depends on gawk.
PATH=$(echo $PATH|tr ":" "\n"|gawk '!($0 in a) { a[$0];print}'|paste -sd: - )
Related
I'm doing a project that allow the customer to export the mysql data into .xls form. I'm using phpspreadsheet library.
That's done, but in my data contain lots of date, some of the date is 0000-00-00 means that it is not used.
I wanted to filter all of these '0000-00-00' into '-'.
I uses excel find and replace and save them as macro ( .bas )
What i have tried is
load the .bas file with IOFactory and reader in php, but it say the file format is not accepted
use substitute method in php loops that use to get the sql data value
$activeSheet->setCellValue('L'.$i, '=substitute('L'.$i ,"0000-00-00", "-')');
$i is 1 that will increase by 1 for each loop
This method failed when the i can't include the $i inside the substitute() because the of "" and
'' problem, I tried to change them around, but seem like the 0000-00-00 and - must use "", if
not the method is not recognise by the library that makes the $i can't be detect then...
Is there any way to solve any of these problems? or it can't be solve in the first place?
cause i can't found any explanation of macro in phpspreadsheet from community nor google.
When setting the value of the cell
if ($datefromselect == '0000-00-00') {
$activeSheet->setCellValueByColumnAndRow($colnum, $rownum, '-');
} else {
$activeSheet->setCellValueByColumnAndRow($colnum, $rownum, $datefromselect);
}
or get it done in the select as in
SELECT lastname,
if(date_closed = '0000-00-00', '-', date_closed)
FROM `lca_clients`
I have a cookies.permanent[:liked]:
cookies.permanent[:liked] = 'liked1#liked2#'
I removed liked1#:
cookies.permanent[:liked].slice! `liked1#`
I get cookies.permanent[:liked]:
'liked2#'
Next, I removed 'liked2#':
cookies.permanent[:liked].slice! `liked2#`
and I thought I would get '', but I got:
'liked1#'
And I printed cookies.permanent[:liked], I got 'liked1#liked2#'!
I just want to delete a substring of cookies value, but I find it still can be read.
So, how to do that? Note, I must use permanent.
Yeah, I find I can do this by this:
temp = cookies.permanent[:liked]
wanted_deleted = 'liked1#'
temp.slice! wanted_deleted
cookies.permanent[:liked] = temp
Now, value of cookies.permanent[:liked] is 'liked2#'
There has more efficient ways?
I like to combine these two url-variables. I have quite long code, may I shorten it:
// first statement
if (!empty($_GET["urlparameter1"]))
{$_SESSION["urlparameter1"] = $_GET["urlparameter1"];}
$urlparameter1= $_SESSION["urlparameter1"];
// combine this with first statement
if (!empty($_GET["urlparameter2"]))
{$_SESSION["urlparameter2"] = $_GET["urlparameter2"];}
$urlparameter1= $_SESSION["urlparameter2"];
how to I transfer 2 or more get-variables in url?
To combine all parameters in one variable I just use
$_SERVER['QUERY_STRING']
This works. Found via http://php.net/manual/de/reserved.variables.server.php :-)
I have been trying to find a solution to this for some time. I have found questions and answers on recursion but nothing that seemed to fit this particular situation.
I have written a class which should go through the given folder and all subfolders and rename files and folders if a particular search pattern is found.
Everything works as expected the replaceAllInDir gets called, it replaces files and folders if needed. The next step then is to do the same for all subfolders within the given folder.
So a subfolder gets identified and replaceAllInDir gets called from within itself. Let's assum the particular subfolder called does not contain any subfolders. I would then expect that we return to the parent folder and continue looking for other subfolders. But instead control is not returned to the parent calling method and the program ends.
I am aware of other ways of solving the actual use case, but I cannot explain the behaviour of ruby.
class MultiFileAndFolderRename
attr_accessor :rootDir, :searchPattern, :replacePattern
def initialize(rootDir, searchPattern, replacePattern)
#rootDir = rootDir
#searchPattern = searchPattern
#replacePattern = replacePattern
end
def execute
replaceAllInDir(#rootDir)
end
def getValidDirEntries(dir)
dirList = Dir.entries(dir)
dirList.delete('.')
dirList.delete('..')
dirList
end
def replaceAllInDir(currentDir)
Dir.chdir(currentDir)
puts "Processing directory: " + Dir.pwd
dirList = getValidDirEntries(currentDir)
dirList.each { |dirEntry|
attemptRename(dirEntry)
}
dirList = getValidDirEntries(currentDir)
dirList.each { |dirEntry|
if File.directory?(dirEntry)
newDir = currentDir + '\\' + dirEntry
rntemp = MultiFileAndFolderRename.new(newDir, 'searchString', 'replaceString')
rntemp.replaceAllInDir(newDir)
end
}
end
def attemptRename(dirEntry)
if dirEntry.match(#searchPattern)
newname = dirEntry.to_s.sub(#searchPattern, #replacePattern)
FileUtils.mv(dirEntry.to_s, newname)
end
end
end
You have a bug. The first line of replaceAllInDir() is Dir.chdir(). chdir() changes the directory of the current process on a global scale. It's not call-stack dependent. So later when you move into a subdirectory and change into that, the change becomes permanent even if you return from the recursion.
You need to change back to the correct directory after any call to replaceAllInDir(). For example:
...
dirList.each { |dirEntry|
if File.directory?(dirEntry)
....
rntemp.replaceAllInDir(newDir)
Dir.chdir(currentDir) # <- Restore us back to the correct directory
end
}
I have tried your code, and I have found numerous errors in it. Perhaps if you fix them, your idea is working.
You should include in a library like that a part at the end that allows to call it from the shell: MultiFileAndFolderRename.new(ARGV[0], ARGV[1], ARGV[2]).execute if __FILE__ == $0 This ensures when you call the ruby code from the shell by ruby rename.rb test old new, your class will be instantiated, and the search and replace pattern will be set accordingly.
You shouldn't set the current directory, because that ensures that the line getValidDirEntries(currentDir) will not work. If you eg. call it for the directory test, and then change your current directory to test, inside the directory, getValidDirEntries('test') will not work like expected.
You should use only forward slashes instead of the double backward ones. So your code will work on Linux and Mac OS X as well.
When you instantiate the new instance of MultiFileAndFolderRename (which is not necessary), the arguments to the initializer are the wrong ones. Instead, you should use your current instance and just call self.replaceAllInDir(newDir) instead of rntemp = MultiFileAndFolderRename.new(newDir, 'searchString', 'replaceString');rntemp.replaceAllInDir(newDir).
I think the wrong instantiation is the major reason why it works not as expected, but the others should be fixed as well.
I need to load a yaml file into Hash,
What should I do?
I would use something like:
hash = YAML.load(File.read("file_path"))
A simpler version of venables' answer:
hash = YAML.load_file("file_path")
Use the YAML module:
http://ruby-doc.org/stdlib-1.9.3/libdoc/yaml/rdoc/YAML.html
node = YAML::parse( <<EOY )
one: 1
two: 2
EOY
puts node.type_id
# prints: 'map'
p node.value['one']
# prints key and value nodes:
# [ #<YAML::YamlNode:0x8220278 #type_id="str", #value="one", #kind="scalar">,
# #<YAML::YamlNode:0x821fcd8 #type_id="int", #value="1", #kind="scalar"> ]'
# Mappings can also be accessed for just the value by accessing as a Hash directly
p node['one']
# prints: #<YAML::YamlNode:0x821fcd8 #type_id="int", #value="1", #kind="scalar">
http://yaml4r.sourceforge.net/doc/page/parsing_yaml_documents.htm
You may run into a problem mentioned at this related question, namely, that the YAML file or stream specifies an object into which the YAML loader will attempt to convert the data into. The problem is that you will need a related Gem that knows about the object in question.
My solution was quite trivial and is provided as an answer to that question. Do this:
yamltext = File.read("somefile","r")
yamltext.sub!(/^--- \!.*$/,'---')
hash = YAML.load(yamltext)
In essence, you strip the object-classifier text from the yaml-text. Then you parse/load it.