"Javascript is required for ZeroBin.net to work. Sorry for the inconvenience." Here's the contents of the paste: I stumbled upon/essentially derped the: ls

"Javascript is required for ZeroBin.net to work. Sorry for the inconvenience." Here's the contents of the paste: I stumbled upon/essentially derped the: ls | grep "echo ${data}" ... line, saying oh this should work... and it actually worked.. I didn't think anymore about it... ... but later on, I thought about it more and decided echoing the variable shouldn't actually work, and you should have to do a for loop instead... and that it should fail in the same way that piping thru a cat of the file should fail (and does fail): ls | grep `cat ../filelist.txt` ...does not work/no output (as expected) But, piping to grep and echoing the variable actually works and returns the wanted results/matches!! How is this possible? [jbrown@tools1 testdir1]$ ls | grep `cat ../filelist.txt` <<NO OUTPUT>> [jbrown@tools1 testdir1]$ ls | grep "echo ${data}" testfile10 testfile2 testfile3 testfile4 testfile5 testfile6 testfile7 testfile8 testfile9 [jbrown@tools1 testdir1]$ echo ${data} testfile1 testfile2 testfile3 testfile4 testfile5 testfile6 testfile7 testfile8 testfile9 testfile10 [jbrown@tools1 testdir1]$ cat ../filelist.txt testfile1 testfile2 testfile3 testfile4 testfile5 testfile6 testfile7 testfile8 testfile9 testfile10 [jbrown@tools1 testdir1]$ ls nomatchfile1 nomatchfile2 nomatchfile4 nomatchfile6 nomatchfile8 testfile1 testfile2 testfile4 testfile6 testfile8 nomatchfile10 nomatchfile3 nomatchfile5 nomatchfile7 nomatchfile9 testfile10 testfile3 testfile5 testfile7 testfile9