Error during command authentication.
Error - unable to initiate communication with LISTSERV (errno=10061, phase=CONNECT, target=127.0.0.1:2306). The server is probably not started.
On Aug 3, 2007, at 9:01 PM, John Baxter wrote: > On Aug 3, 2007, at 2:34 PM, David Livesay wrote: > >> I understand that, but how do you get cat to put quotes around >> each line? > > Sorry, Dave, I was just trying to show the interaction of the shell > and the echo command. (Also, I didn't have time earlier to drag > the book out.) > > > Here is one paradigm for reading lines from a file. (Courtesy of > page 174 of "Learning the bash Shell", second edition.) (There are > several others shown before this one, along with a suggestion not > to do it this way for "large" files [over a few hundred lines, > which probably applies to your logs] for performance reasons. But > since you're doing a one-time task, you really don't care about > performance: "you paid for those cycles, you might as well use > them".) > > > The script: > $cat reader.sh > #!/bin/bash > > { > while read line; do > echo "$line" > done > } < test.txt > > The test file: > $cat test.txt > one > two > three four > five six seven eight > nine > > Running the script (I did make it executable) > $./reader.sh > one > two > three four > five six seven eight > nine > > > If I remove the quotes around $line in the echo "$line" command, > the result becomes what you don't want: > $./reader.sh > one > two > three four > five six seven eight > nine > > > > The script creates a nameless function ("block" in C terms), then > executes the function redirecting standard input to come from the > file. This is great, John. Thanks. I'm definitely going to have to pick up that book. > Note the complete lack of cat. That's preferable to a complete lack of... I'm not going to say it. ;-)