10-27-2008
Tks for your replay. Here is the explanantion:
I am writing a script to install a embedded mini-linux via gentoo. The script is communicating with the user via kdialog.
I would have two chances - 1st. fix all parameter (e.g. projectname, path to project, selected libs (uclibc, glibs etc.) etc.) or 2nd. put all those parameter in a separate file.
This file is my config file file.txt it looks like this:
#### REM
#
#
# <1> Projectname
ProjectOne
#REM
# <2> Path to Project
/mnt/ProjectOne
# ....
So once I need a parameter e.g. the projectname the script can read it from the config file file.txt by find the contant starting with <...> add one line and read the result into a var.
But the user shall be able to change the parameters as well. E.g. he can offer a kdialog to define the project path. If this differ from the default, I would like to overwrite the choice e.g. /tmp/myproject/new in the config file by searching the # <2> ... constant add one line and overwrite the actual value.
My problem is that I do not know a tool in shell which is able to write into files as to a line order. SED maybe can but I do not have any experience with it.
Tks for your reply in advance
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LEARN ABOUT NETBSD
zfgrep
ZGREP(1) BSD General Commands Manual ZGREP(1)
NAME
zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files
SYNOPSIS
zgrep [grep-flags] [--] pattern [files ...]
zegrep [grep-flags] [--] pattern [file ...]
zfgrep [grep-flags] [--] pattern [file ...]
DESCRIPTION
zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1).
The grep-flags and pattern arguments are passed on to grep(1). If an -e flag is found in the grep-flags, zgrep will not look for a pattern
argument.
zegrep calls egrep(1), while zfgrep calls fgrep(1).
EXIT STATUS
In case of missing arguments or missing pattern, 1 will be returned, otherwise 0.
SEE ALSO
egrep(1), fgrep(1), grep(1), gzip(1), zcat(1)
AUTHORS
Thomas Klausner <wiz@NetBSD.org>
BSD
December 28, 2003 BSD