07-06-2007
Command that prints content of line5, or similar?
Hello all;
I've been having trouble completing a script (bash) because I can't get past the issue of finding a line in a file. For example, I have a file like this:
ddmmmyyyy Lon Lat
24may2003 -100.0 24.1
25may2003 -100.1 24.0
28may2003 -99.5 23.2
....etc
05jun2003 -97.0 22.7
EOF
I'm making a loop, and I need a way to call a line number without specifying what the line contains (i.e., grep doesn't work). Here's what I had in mind:
n=2
While (something that makes the loop infinite); do
day=`command line${n} word1
if
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LEARN ABOUT DEBIAN
smd-loop
smd-loop(1) Sync Mail Dir (smd) documentation smd-loop(1)
NAME
smd-loop - iterates smd-pull and smd-push
SYNOPSIS
smd-loop [-vt]
DESCRIPTION
smd-loop runs smd-push and smd-pull at regular intervals as defined by the user in the ~/.smd/loop configuration file. On errors that are
reported to be transient, it retries a second time before failing.
The configuration file is line-oriented. Each line is composed of three space separated fields: pull-frequency, push-frequency and end-
point-name. Frequencies are expressed in minutes, while endpoint name is a valid name for smd-pull(1) and smd-push(1). Lines beginning with
# are considered as comments. The following example calls the command smd-pull default every 3 minutes, and smd-push default every 10.
Example:
# pull-frequency push-frequency endpoint-name
3 10 default
OPTIONS
-v Increase program verbosity (printed on stderr)
-t Just create a template configuration file if none
FILES
~/.smd/loop
SEE ALSO
mddiff(1), smd-server(1), smd-client(1), smd-push(1), smd-pull(1)
AUTHOR
Enrico Tassi <gares@fettunta.org>
11 June 2012 smd-loop(1)