06-13-2018
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
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)
Discussion started by: TinCanFury
5 Replies
2. Shell Programming and Scripting
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)
Discussion started by: Sivaswami
1 Replies
3. Shell Programming and Scripting
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)
Discussion started by: szittyafergeteg
2 Replies
4. Shell Programming and Scripting
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)
Discussion started by: Cypress
10 Replies
5. Shell Programming and Scripting
I have a question about bash script.
Can I create a function there that accept parameters like functions in program language? (2 Replies)
Discussion started by: programAngel
2 Replies
6. Shell Programming and Scripting
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)
Discussion started by: jedel
6 Replies
7. Shell Programming and Scripting
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)
Discussion started by: withanh
2 Replies
8. Shell Programming and Scripting
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)
Discussion started by: bashily
2 Replies
9. Shell Programming and Scripting
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)
Discussion started by: vel4ever
2 Replies
10. Shell Programming and Scripting
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 FREEBSD
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
The rcorder utility is designed to print out a dependency ordering of a set of interdependent files. Typically it is used to find an execu-
tion sequence for a set of shell scripts in which certain files must be executed before others.
Each file passed to rcorder must 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 must 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. Multi-
ple ``PROVIDE'', ``REQUIRE'', ``BEFORE'' and ``KEYWORD'' lines may appear, but all such lines must appear in a sequence without any interven-
ing 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. 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
The rcorder utility 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 utility first appeared in NetBSD 1.5.
AUTHORS
Written by Perry E. Metzger <perry@piermont.com> and Matthew R. Green <mrg@eterna.com.au>.
BUGS
The ``REQUIRE'' keyword is misleading: It doesn't describe which daemons have to be running before a script will be started. It describes
which scripts must be placed before it in the dependency ordering. For example, if your script has a ``REQUIRE'' on ``named'', it means the
script must be placed after the ``named'' script in the dependency ordering, not necessarily that it requires named(8) to be started or
enabled.
BSD
August 5, 2011 BSD