12-11-2012
Read and write in the file
Hello Guys, How all are doing?
I have an issue in Unix and want help from all of you
I have a file in UNIX which it read by line by line , If at the end of line '0' is written the it should fetch that line into another file and change '0' to '1'
and If at the end of line '1' is written then it should do nothing.
Temp file cannot be used
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LEARN ABOUT DEBIAN
canto-fetch
Canto-fetch(1) Canto-fetch Canto-fetch(1)
NAME
Canto-fetch - A quiet feed fetcher.
DESCRIPTION
Canto-fetch is designed to be run through a cron job, every minute. Every time it's run, it checks the timestamp on each index file and
updates the feed, if necessary. The format it produces is a simple UTF-8 encoded, NULL delimited text file on disk, readable by the canto
client.
GETTING STARTED
Canto-fetch is meant to be used through a cron, adding this line to your crontab will cause canto-fetch to poll every minute.
* * * * * canto-fetch
Alternatively, if you're unable/uncomfortable using cron, canto-fetch has a background daemon mode so you can invoke it in your X session
scripts. Just use
canto-fetch -b
USAGE
These options correspond to options to the canto client.
-h / --help
Print usage and quit.
-v / --version
Print version and quit.
-V / --verbose
Output status while updating.
-d / --daemon
Continue to check for updates every minute. Mostly for debugging with -V, users probably want -b to background.
-b / --background
Detach from the terminal (implies -d)
-f / --force
Force updates on all feeds, ignoring timestamps.
-s / --sysfp
Use feedparser on system instead of builtin copy.
-C / --conf [PATH]
Set path to configuration file (default: ~/.canto/conf)
-F / --fdir [PATH]
Set path to feed directory (default: ~/.canto/feeds/)
-L / --log [PATH]
Set path to log (default: ~/.canto/fetchlog)
-S / --sdir [PATH]
Set the path to execurl scripts (default ~/.canto/scripts/)
FILES
~/.canto/fetchlog
Canto-fetch log file.
~/.canto/feeds/
This is the directory where canto-fetch records stories.
BUGS
None known, but it's not outside of the realm of possibility =P.
HOMEPAGE
http://codezen.org/canto
AUTHOR
Jack Miller <jack@codezen.org>
Version 0.7.10 27 July 2010 Canto-fetch(1)