I have created a KornShell script containing swiches with getopts (command line switches). Normally, my script should work like this:
Now the problem is that when I don't supply an argument for the switch -c, the script
considers the precedent switch as the current switch that is CURRENT_SWITCH=b
instead of CURRENT_SWITCH=c. So here is what I obtain:
Could somebody kindly guide me where did I make a mistake in my implementation?
Here is the script code:
Thanks in advance,
Hi,
If i want to write my data on several tapes, (more than one tape), what switch(s) i need to use with tar.
In other word if my data needs the sapce more than one tape & i don't wanna to compress or ... my data. so is it possible to write up to the end of the tape & it asks to put another... (1 Reply)
I install vsftpd server on 2 SUSE 10.2 servers. The first works perfectly, but the second doesn't work how I expect. The second works only over local network and doesn't over internet. The vsftpd.conf and ../xinetd.d/vsftpd are the same in 2 servers. The only different was when I threw to log in... (1 Reply)
Hi All ,
In my environment we have 12 SAN switches .Culd u pls help me for below queries .
would like to telnet to all switches and collect information in daily basis with "switchstatus" command and store the output under /tmp/ folder on systemA .
To keep passwords of 12switches in a... (1 Reply)
Hello All,
I am writing an shell script but abruptly its not able to recognize switches in echo statement.
#!/bin/bash
top -n 1 -b>ankit
host=`hostname`
time=`cat ankit|grep load|tr -s " "|cut -d " " -f3`
load=`cat ankit|grep load|tr -s " "|cut -d "," -f4|cut -d ":" -f2`
... (3 Replies)
Hi all,
I'm having a problem here my environment as follows.
AIX 5.3 TL 10 running on a P6 p520 sever with 3 fibre channel cards and Tivoli Storage Manager TSM 5.4 and TS3200 Tape Library with 2 drives and 2 media changers.
My problem as follows smc1 doesn't show up , I ran cfgmgr multiple... (6 Replies)
Hi all,
I have a problem here
root@host1 / # lsdev -Cc tape
rmt0 Defined 07-00-02 IBM 3580 Ultrium Tape Drive (FCP)
rmt1 Defined 07-00-02 IBM 3580 Ultrium Tape Drive (FCP)
smc0 Defined 07-00-02 IBM 3573 Tape Medium Changer (FCP)
root@host1 / # cfgmgr -l fcs2
Method error... (2 Replies)
Hi,
My environement
OS: Linux Fedora Core 17 X86_64
KSH version: sh (AT&T Research) 93u+ 2012-08-01
As I understand inside a Kornshell script, the getopts statement allows to collect information about the switches provided for the script (if any). Besides, it is possible to... (3 Replies)
I have Ubuntu 16.04 (dual boot with Windows 10) and a HP Spectre x360 laptop.
I have recently bought a Dell Ultrasharp U2515H monitor, which I connect via a Dell docking station.
When I plug the docking station to my laptop on Windows, both monitors are detected and everything works fine.
... (23 Replies)
Hi,
When I run the the following code:
#!/bin/bash
if ]; then
usage
fi
if ]
then
echo "Do not execute this as root, use -s instead"
fi
SERVERFILE="servers"
function usage {
echo "USAGE: ${0} COMMAND" (4 Replies)
I have a Dell XPS M1330 laptop. The OS is Windows 10. I had to replace the motherboard because it was bad. After replacing the motherboard I noticed the optical (DVD/CD) drive is neither detected in BIOS and OS nor making any noise at all. Everything else seems to be working fine. The optical drive... (3 Replies)
Discussion started by: milhan
3 Replies
LEARN ABOUT REDHAT
switch
switch(n) Tcl Built-In Commands switch(n)
__________________________________________________________________________________________________________________________________________________NAME
switch - Evaluate one of several scripts, depending on a given value
SYNOPSIS
switch ?options? string pattern body ?pattern body ...?
switch ?options? string {pattern body ?pattern body ...?}
_________________________________________________________________DESCRIPTION
The switch command matches its string argument against each of the pattern arguments in order. As soon as it finds a pattern that matches
string it evaluates the following body argument by passing it recursively to the Tcl interpreter and returns the result of that evaluation.
If the last pattern argument is default then it matches anything. If no pattern argument matches string and no default is given, then the
switch command returns an empty string.
If the initial arguments to switch start with - then they are treated as options. The following options are currently supported:
-exact Use exact matching when comparing string to a pattern. This is the default.
-glob When matching string to the patterns, use glob-style matching (i.e. the same as implemented by the string match command).
-regexp When matching string to the patterns, use regular expression matching (as described in the re_syntax reference page).
-- Marks the end of options. The argument following this one will be treated as string even if it starts with a -.
Two syntaxes are provided for the pattern and body arguments. The first uses a separate argument for each of the patterns and commands;
this form is convenient if substitutions are desired on some of the patterns or commands. The second form places all of the patterns and
commands together into a single argument; the argument must have proper list structure, with the elements of the list being the patterns
and commands. The second form makes it easy to construct multi-line switch commands, since the braces around the whole list make it unnec-
essary to include a backslash at the end of each line. Since the pattern arguments are in braces in the second form, no command or vari-
able substitutions are performed on them; this makes the behavior of the second form different than the first form in some cases.
If a body is specified as ``-'' it means that the body for the next pattern should also be used as the body for this pattern (if the next
pattern also has a body of ``-'' then the body after that is used, and so on). This feature makes it possible to share a single body among
several patterns.
Beware of how you place comments in switch commands. Comments should only be placed inside the execution body of one of the patterns, and
not intermingled with the patterns.
Below are some examples of switch commands:
switch abc a - b {format 1} abc {format 2} default {format 3}
will return 2,
switch -regexp aaab {
^a.*b$ -
b {format 1}
a* {format 2}
default {format 3}
}
will return 1, and
switch xyz {
a
-
b
{
# Correct Comment Placement
format 1
}
a*
{format 2}
default
{format 3}
}
will return 3.
SEE ALSO
for(n), if(n), regexp(n)
KEYWORDS
switch, match, regular expression
Tcl 7.0 switch(n)