The answer is simple: you either use the test construction -or- square brackets. Also to keep coding simple and avoid having to use semicolons all the the time to delimit commands, put the several components of the if-then-else-fi construct on separate lines:
Code:
if [ condition ]
then
command 1
else
command 2
fi
In your case, you were missing a semicolon just before the 'then'
I write a sh script that zip and copy to tape all files that older then 2 hours.
1. The way I choose is - touch a file with "now - 2 hours", then use fine with '! -newer'
2. Do you have any other idea to do it ?
tnx. (1 Reply)
I wonder how I shall read the result below, especially 'what'
shown below.
The result was shown when I entered 'w'.
E.g what is TOP? What is gosh ( what does selmgr mean?)?
login@ idle JCPU PCPU what
6:15am 7:04 39 39 TOP
6:34am 6:45 45 45 TOP
6:41am ... (1 Reply)
Can anybody help me?
I am developing a utility for automating message paging to a BT alphanumeric pager.
I am using a USR 56K Fax-modem connected to /dev/cuab on a Sun Ultra-10. I am using the UNIX 'tip' utility to connect to the modem and I have configured the modem as follows: Baud Rate:... (2 Replies)
Hi, guys, I have a big problem.
I've got a sun solaris 4.1.4 workstation, and the /var/adm/message file will add one row every few seconds. It soon becomes a large file.
I wander if there are some mistakes configuring the workstation.
the /var/adm/message is as follow:
... (1 Reply)
Hey all,
I've bought a few bits from Belkin who seem quite happy to support FreeBSD! Last time I bought a UPS from them and it's still going well :D
I saw this on their website that the 16bit PCMCIA card was supported under FreeBSD:
http://www.belkin.com/network/F5D5020.html
I went to my... (0 Replies)
Here is a crude procmail recipe that I quickly created (NOT a procmail recipe expert, btw) that has been catching lots of spam (current second after the charset_spam recipe posted earlier):
:0B
* .*If.you.do.not.wish.to.receive...*
more_spam
:0B
* You.requested.to.receive.this.mailing... (0 Replies)
Somehow someone created a file named '-ov' in the root directory.
Given the name, the how was probably the result of some cpio command they bozo'ed.
I've tried a number of different ways to get rid of it using * and ? wildcards, '\' escape patterns etc.. They all fail with " illegal option --... (3 Replies)
Hopefully this doesn't come off as too much of a "newbie" question or a flamebait. But I have recently begun working with a Sun Solaris box after having spent the past five years working with RedHat. From what i can tell, thing look fairly similar and the 'man' command is some help. But I've... (7 Replies)
Discussion started by: deckard
7 Replies
LEARN ABOUT HPUX
command
command(1) General Commands Manual command(1)NAME
command - execute a simple command
SYNOPSIS
command_name [argument ...]
DESCRIPTION
enables the shell to treat the arguments as a simple command, suppressing the shell function lookup.
If command_name is not the name of the function, the effect of is the same as omitting command.
Operands
recognizes the following operands:
command_name The name of a HP-UX command or a shell built-in command.
argument One or more strings to be interpreted as arguments to command_name.
The command is necessary to allow functions that have the same name as a command to call the command (instead of a recursive call to the
function).
Nothing in the description of is intended to imply that the command line is parsed any differently than any other simple command. For
example,
is not parsed in any special way that causes or to be treated other than a pipe operator or semicolon or that prevents function lookup on b
or c.
EXTERNAL INFLUENCES
Environment Variables
determines the search path used during the command search.
RETURN VALUE
exits with one of the following values:
o If fails:
126 The utility specified by the command_name is found but not executable.
127 An error occurred in the utility or the utility specified by command_name is not found.
o If does not fail:
The exit status of is the same as that of the simple command specified by the arguments: command_name[argument ...]
EXAMPLES
Create a version of the command that always prints the name of the new working directory whenever it is used:
cd() {
command "$@" >/dev/null
pwd
}
Circumvent the redefined command above, and change directories without printing the name of the new working directory:
SEE ALSO getconf(1), sh-posix(1), confstr(3C).
STANDARDS CONFORMANCE command(1)