Is it about sorting of arguments that are given to a script or a script function?
The sorting of arguments requires an explicit sorting, either with an external sort command or with a sort function.
A newline is an obstacle for the external sort command, unless sort understands -t $'\0' or similar tricks.
A shell function can do it, as shown by the following sample:
Proper quoting of variables in command arguments is important! Only then all special characters are treated normal, even newline characters.
--
You haven't provided your shell script yet. So maybe my assumptions were totally wrong...
Hi, I'm a pretty big fan of BASH scripting. I've got a bunch I use for random things and lately a couple issues have been plaguing me.
Both are somewhat related, in that they deal with filenames with spaces and "escaped" characters and with launching a program with command line arguements... (5 Replies)
Hi I have 2 files a.c and a.bak where I changed long to int using awk script.
I want to get the list of functions whose parameters got modified
for eg: fun ( long a, long b ) might be changed to fun ( int a, int b ) (1 Reply)
Hello,
I've got next problem:
I want to examine at the beginning of a script in an if loop that:
1. Is there 4 parameters given
2. If first state is true then: is there switches -e and -d?
3. At the end, how can i indentify them as variebles regardlees to its order.
I was thinking like... (2 Replies)
Hi, I am trying to do this thing useing my shell bash ( sorry for my english )
I have in a file 63 hostnames, i wanna ask to the DHCP admin, to reserv that reserves 63 IP addresses of this hosts, using their mac address.
I have thinked this script:
for ((i=1;i<63;i++)); do
arp $(head... (10 Replies)
Hi,
So I have a web page that has some drop down boxes with a whole bunch of entries. Unfortunately, they have been added over time and started from a small list and is now extremely messy. I'm looking to write script so I can just copy in the section of the HTML code and have it sorted for... (6 Replies)
I've found a few posts regarding passing parameters to a function or subroutine, but for some reason when I try to run a command based on part with these parameters it's not working. If I have the function echo the parameters they show correctly so I believe they are being passed right but the... (2 Replies)
In a Bash script I used getopts command to let a user does something regards to the selected options. The question is: How do you find out what is the name of the file that user inserted in the command line like the following:
The good part is this file is always the last argument in the... (2 Replies)
Hi,
I have a script which will be executed using the below command,
bin/nutch crawl urls -dir /data/test/
bin/nutch - Script file
crawl, urls, /data/test/ - Parameters
-dir - Option
The above script should executed from a shell script named test.sh. I have the below code to execute... (2 Replies)
Hi,
I have 4 parameters passed to my shell and i validate if all four are entered using the following snippet:
if
then echo "Not entered"
else echo "entered"
fi
I get the following output as 'Not entered even when i enter the values for all prompts.
Please advise.
Thanks. (5 Replies)
Discussion started by: Jesshelle David
5 Replies
LEARN ABOUT NETBSD
rcorder
RCORDER(8) BSD System Manager's Manual RCORDER(8)NAME
rcorder -- print a dependency ordering of interdependent files
SYNOPSIS
rcorder [-k keep] [-s skip] file ...
DESCRIPTION
rcorder is designed to print out a dependency ordering of a set of interdependent files. Typically it is used to find an execution sequence
for a set of shell scripts in which certain files must be executed before others.
Each file passed to rcorder should be annotated with special lines (which look like comments to the shell) which indicate the dependencies
the files have upon certain points in the sequence, known as ``conditions'', and which indicate, for each file, which ``conditions'' may be
expected to be filled by that file.
Within each file, a block containing a series of ``REQUIRE'', ``PROVIDE'', ``BEFORE'' and ``KEYWORD'' lines should appear. The format of the
lines is rigid. Each line must begin with a single ``#'', followed by a single space, followed by ``PROVIDE:'', ``REQUIRE:'', ``BEFORE:'',
or ``KEYWORD:''. No deviation is permitted. Each dependency line is then followed by a series of conditions, separated by whitespace. Mul-
tiple ``PROVIDE'', ``REQUIRE'', ``BEFORE'' and ``KEYWORD'' lines may appear, but all such lines must appear in a sequence without any inter-
vening lines, as once a line that does not follow the format is reached, parsing stops.
The options are as follows:
-k Add the specified keyword to the ``keep list''. If any -k option is given, only those files containing the matching keyword are
listed.
-s Add the specified keyword to the ``skip list''. If any -s option is given, files containing the matching keyword are not listed.
An example block follows:
# REQUIRE: networking syslog
# REQUIRE: usr
# PROVIDE: dns nscd
This block states that the file in which it appears depends upon the ``networking'', ``syslog'', and ``usr'' conditions, and provides the
``dns'' and ``nscd'' conditions.
A file may contain zero ``PROVIDE'' lines, in which case it provides no conditions, and may contain zero ``REQUIRE'' lines, in which case it
has no dependencies. A file containing no ``PROVIDE'', ``REQUIRE'', or ``BEFORE'' lines may be output at an arbitrary position in the depen-
dency ordering.
There must be at least one file with no dependencies in the set of arguments passed to rcorder in order for it to find a starting place in
the dependency ordering.
DIAGNOSTICS
rcorder may print one of the following error messages and exit with a non-zero status if it encounters an error while processing the file
list.
Requirement %s has no providers, aborting. No file has a ``PROVIDE'' line corresponding to a condition present in a ``REQUIRE'' line in
another file.
Circular dependency on provision %s, aborting. A set of files has a circular dependency which was detected while processing the stated con-
dition.
Circular dependency on file %s, aborting. A set of files has a circular dependency which was detected while processing the stated file.
SEE ALSO rc(8)HISTORY
The rcorder program first appeared in NetBSD 1.5.
AUTHORS
Written by Perry E. Metzger <perry@piermont.com> and Matthew R. Green <mrg@eterna.com.au>.
BSD April 23, 2003 BSD