I like your approach the best. The script automatically files input files and consumes as it finishes. The only change I would make is building LOAD into the script so it's not dependent on an environment variable.
You can also do something like:
A "for" loop like this is looping over the arguments to the script. You invoke this from yor favorite interactive shell that has filename completion capabilities.
But you don't want scripts to have their own custom filename completion code. After you have 100 scripts, each a little different, it's a nightmare. And if you go on vacation your assistant has a steep learning curve with even one such script. But if you use ksh and he uses tcsh, you both can use the command completion system that you know with the simpler approach.
At my company, we build some stuff using a makefile. While the makefile script is running, a developer may check in a newer version of a source file. The problem is, when we next run the make command, the target file isn't rebuilt, because the date of the target is after the dependency.
Any... (1 Reply)
I have lines like:
Mg2.qns W=0.175u
Mg2.qpsb W=0.175u
Mg4.qns W=0.175u
Mg4.qpsb W=0.175u
Which I need to become:
Mg2.qns W=wmg2qns
Mg2.qpsb W=wmg2qpsb
Mg4.qns W=wmg4qns
Mg4.qpsb W=wmg4qpsb
To acheive this individually line by line I use a command like:... (3 Replies)
I have a string as "Period= 20090531 Client Name= Clayton Lumbar Company Destination= MD"
I want to parse the string and store it in 3 different variables.
$period (should get value 20090531)
$client (should get value "Clayton Lumbar company")
$dest (should get value MD)
How can I do... (3 Replies)
Q. Write a script that behaves both in interactive and non interactive mode. When no arguments are supplied it picks up each C program from the directory and prints first 10 lines.
It then prompts for deletion of the file.
If user supplies arguments with the script , then it works on those files... (1 Reply)
Q. Write a script that behaves both in interactive and non interactive mode. When no arguments are supplied it picks up each C program from the directory and prints first 10 lines.
It then prompts for deletion of the file.
If user supplies arguments with the script , then it works on those files... (8 Replies)
hello everyone!:)
I have an exercise which I think is difficult for beginner like me. Here is the exercise
Create a shell script, which takes a directory as command line argument.
Script displays ten first lines from every text file in that directory. After
displaying the lines from the... (1 Reply)
Discussion started by: googlevn
1 Replies
LEARN ABOUT OPENSOLARIS
env
env(1) User Commands env(1)NAME
env - set environment for command invocation
SYNOPSIS
/usr/bin/env [-i | -] [name=value]... [utility [arg... ]]
/usr/xpg4/bin/env [-i | -] [name=value]...
[utility [arg... ]]
DESCRIPTION
The env utility obtains the current environment, modifies it according to its arguments, then invokes the utility named by the utility op-
erand with the modified environment.
Optional arguments are passed to utility. If no utility operand is specified, the resulting environment is written to the standard output,
with one name=value pair per line.
/usr/bin
If env executes commands with arguments, it uses the default shell /usr/bin/sh (see sh(1)).
/usr/xpg4/bin
If env executes commands with arguments, it uses /usr/xpg4/bin/sh (see ksh(1)).
OPTIONS
The following options are supported:
-i | - Ignores the environment that would otherwise be inherited from the current shell. Restricts the environment for utility to
that specified by the arguments.
OPERANDS
The following operands are supported:
name=value Arguments of the form name=value modify the execution environment, and are placed into the inherited environment before
utility is invoked.
utility The name of the utility to be invoked. If utility names any of the special shell built-in utilities, the results are unde-
fined.
arg A string to pass as an argument for the invoked utility.
EXAMPLES
Example 1 Invoking utilities with new PATH values
The following utility:
example% env -i PATH=/mybin mygrep xyz myfile
invokes the utility mygrep with a new PATH value as the only entry in its environment. In this case, PATH is used to locate mygrep, which
then must reside in /mybin.
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of env: LANG, LC_ALL, LC_CTYPE, LC_MES-
SAGES, and NLSPATH.
PATH Determine the location of the utility. If PATH is specified as a name=value operand to env, the value given shall be used in the
search for utility.
EXIT STATUS
If utility is invoked, the exit status of env is the exit status of utility. Otherwise, the env utility returns one of the following exit
values:
0 Successful completion.
1-125 An error occurred.
126 utility was found but could not be invoked.
127 utility could not be found.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
/usr/bin
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|CSI |enabled |
+-----------------------------+-----------------------------+
/usr/xpg4/bin
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWxcu4 |
+-----------------------------+-----------------------------+
|CSI |enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO ksh(1), sh(1), exec(2), profile(4), attributes(5), environ(5), standards(5)SunOS 5.11 2 Jan 2002 env(1)