10-23-2013
Hi mikemazz...
Satisfy my curiosity...
I, as a complete novice, am wondering why is shell scripting considered _complete_hell_ from your POV...
It is said that "there is more than one way to skin a cat" and shell scripting gives just that proverb's choice.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
I don't know anything about scripting, and I want help on writing a script, which can help me doing my research.
Actually I have some ASCII format files formatted in a way looks like this
6 lines of text that is not important for me
File_header_name_number_1 <--... (1 Reply)
Discussion started by: geoquest
1 Replies
2. Shell Programming and Scripting
I am very new to Unix. I need to write a script that will grep some files, etc. When I write the script, do I need to know what shell I am using? If so, how do I do that? (1 Reply)
Discussion started by: ssmiths001
1 Replies
3. Shell Programming and Scripting
Hi,
I just learnt the shell scripting and got working on that right now. I have one problem.
Here i am having a java application that needs to be start and stop using two shell scripts, i.e., starting the java application using one shell script and stopping the application using another... (1 Reply)
Discussion started by: sadha
1 Replies
4. Shell Programming and Scripting
What would happen if I didn't use "./" before writing a script? (4 Replies)
Discussion started by: ebethea27703
4 Replies
5. Shell Programming and Scripting
#Define the Start/Stop/Status Scripts to include
SSS_SCRIPTS=( prog1 prog2 prog3 etc...... )
#Start the scripts
StartScripts()
{
for SSS in ${SSS_SCRIPTS}
do
./$SSS start
done
}
#Stop the Scripts
StopScripts()
{
for SSS in ${SSS_SCRIPTS}
do
./$SSS stop #<---I... (1 Reply)
Discussion started by: madasafish
1 Replies
6. Shell Programming and Scripting
Dear All,
Pls find my scripts for Agent services strat & stop.
EAMSROOT=/opt/panaces
export EAMSROOT
cd $EAMSROOT
nohup ./OracleAgent.sh start &
nohup ./PFRAgent.sh start &
nohup ./PFR.sh start &
nohup ./SolarisOSAgent.sh start &
exit 0
EAMSROOT=/opt/panaces
export EAMSROOT
cd... (0 Replies)
Discussion started by: starnaresh
0 Replies
7. AIX
Hi
My hacmp version is 5.4 and it is a active passive cluster.
Where can I find the startup and stop scripts?
Please assist. Thanks. (2 Replies)
Discussion started by: samsungsamsung
2 Replies
8. Red Hat
Hi there,
I am wondering if I could add start/stop ksh scripts provided by 3rd party to cluster... I read that script must be ocf/lsb compliant, however, in AIX I can just set up two separate scripts for starting and stopping application. Can similar be done under RH Linux cluster?
Cheers,
c (1 Reply)
Discussion started by: cyjan
1 Replies
9. Shell Programming and Scripting
I have a question. Actually I want to make two scripts, one is startup.sh and other is stopscript.sh
so for example, I have 5 servers.
Each server has two instances :-
abc111 - Masters
-cra4
abc222 -middle tear
-cra
abc333 -middle tear
-cra1
abc444 -middle tear
... (1 Reply)
Discussion started by: siddharthjain
1 Replies
10. UNIX for Advanced & Expert Users
Is there a way to stop root from writing to a directory? I already tried chattr but that did not seem to work.
chattr +i directory (12 Replies)
Discussion started by: cokedude
12 Replies
LKSH(1) BSD General Commands Manual LKSH(1)
NAME
lksh -- Legacy Korn shell built on mksh
SYNOPSIS
lksh [-+abCefhiklmnprUuvXx] [-+o opt] [-c string | -s | file [args ...]]
DESCRIPTION
lksh is a command interpreter intended exclusively for running legacy shell scripts. It is built on mksh; refer to its manual page for
details on the scripting language. It is recommended to port scripts to mksh instead of relying on legacy or idiotic POSIX-mandated behav-
iour, since the MirBSD Korn Shell scripting language is much more consistent.
LEGACY MODE
lksh has the following differences from mksh:
o lksh is not suitable for use as /bin/sh.
o There is no explicit support for interactive use, nor any command line editing or history code. Hence, lksh is not suitable as a user's
login shell, either; use mksh instead.
o The KSH_VERSION string identifies lksh as ``LEGACY KSH'' instead of ``MIRBSD KSH''.
o lksh only offers the traditional ten file descriptors to scripts.
o lksh uses POSIX arithmetics, which has quite a few implications: The data type for arithmetics is the host ISO C long data type. Signed
integer wraparound is Undefined Behaviour. The sign of the result of a modulo operation with at least one negative operand is unspeci-
fied. Shift operations on negative numbers are unspecified. Division of the largest negative number by -1 is Undefined Behaviour. The
compiler is permitted to delete all data and crash the system if Undefined Behaviour occurs.
o The rotation arithmetic operators are not available.
o The shift arithmetic operators take all bits of the second operand into account; if they exceed permitted precision, the result is
unspecified.
o The GNU bash extension &> to redirect stdout and stderr in one go is not parsed.
o The mksh command line option -T is not available.
o Unless set -o posix is active, lksh always uses traditional mode for constructs like:
$ set -- $(getopt ab:c "$@")
$ echo $?
POSIX mandates this to show 0, but traditional mode passes through the errorlevel from the getopt(1) command.
o lksh, unlike AT&T UNIX ksh, does not keep file descriptors > 2 private.
SEE ALSO
mksh(1)
https://www.mirbsd.org/mksh.htm
https://www.mirbsd.org/ksh-chan.htm
CAVEATS
lksh tries to make a cross between a legacy bourne/posix compatibl-ish shell and a legacy pdksh-alike but ``legacy'' is not exactly speci-
fied.
The set built-in command does not have all options one would expect from a full-blown mksh or pdksh.
Talk to the MirOS development team using the mailing list at <miros-mksh@mirbsd.org> or the #!/bin/mksh (or #ksh) IRC channel at
irc.freenode.net (Port 6697 SSL, 6667 unencrypted) if you need any further quirks or assistance, and consider migrating your legacy scripts
to work with mksh instead of requiring lksh.
MirBSD May 2, 2013 MirBSD