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Operating Systems Linux Command that prints content of line5, or similar? Post 302125717 by lunchtime on Friday 6th of July 2007 02:56:46 PM
Old 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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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)
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