Re: whoami explanation

PJ wrote: > Per Jessen wrote: >> PJ wrote: >> >> >>> forgot to add: >>> What's the difference between back ticks or quotes and regular single >>> quotes? >>> >> text in back ticks is executed via a shell, text in single quotes isn't. >> > Ok, but how does this relate to a command passed from a php Web page? > I don't understand the processus. > I use bash on my FreeBSD and have not needed a back quote yet that I can > recall... and on WinXP? In your bash shell, you can use backticks in a similar way to how PHP uses them - to assign the output of a command to a variable. For example: LIST=find . -name '*.php' will fill up the shell variable $LIST with all the files with extension .php below the current directory. You could then do something with that variable, like for FILE in $LIST do cp $FILE $FILE.bak done to make a backup copy of each of the files. In PHP, something like <?php $list = find . -name '*.php'; foreach (explode(' ',$list) as $file) { copy ($file,"{$file}.bak"); } ?> should do much the same thing (if permissions etc. allow...) Note that in both of these examples, filenames with spaces in them will blow the whole thing up :( -- Peter Ford phone: 01580 893333 Developer fax: 01580 893399 Justcroft International Ltd., Staplehurst, Kent