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Top Forums UNIX for Beginners Questions & Answers Shell Script behaviour and syntax Post 303045824 by Cybora on Tuesday 14th of April 2020 08:36:00 AM
Old 04-14-2020
For Chuber:
1. In StartProcess.sh you only set an environment variable and echo a couple of messages. $! is supposed to be the PID of the last command run in the background, but nothing is being run in the background.
I removed a line of code to post here. It actually calls a process /opt/$[folderpath}/bin/java ${JAVA_OPTIONS} WregProcessor.jar > /dev/null 2>&1 &

2. So are you saying that if you type ./FirstScrpt.sh & that the prompt doesn't return and the script has to be killed (or CTRL-C) to get control back to your invoking shell? Yes

For Sea: the code is below is typed 2 times is this how it should be ?

Code:
echo $!
( echo $! ) &
echo $!
( echo $! ) &
echo $!

 

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COLORS(3)						   libbash colors Library Manual						 COLORS(3)

NAME
colors -- libbash library for setting tty colors. SYNOPSIS
colorSet <color> colorReset colorPrint [<indent>] <color> <text> colorPrintN [<indent>] <color> <text> DESCRIPTION
General colors is a collection of functions that make it very easy to put colored text on tty. The function list: colorSet Sets the color of the prints to the tty to COLOR colorReset Resets current tty color back to normal colorPrint Prints TEXT in the color COLOR indented by INDENT (without adding a newline) colorPrintN The same as colorPrint, but trailing newline is added Detailed interface description follows. Available colors: Green Red Yellow White The color parameter is non-case-sensitive (i.e. RED, red, ReD, and all the other forms are valid and are the same as Red). FUNCTIONS DESCRIPTIONS
colorSet <color> Sets the current printing color to color. colorReset Resets current tty color back to normal. colorPrint [<indent>] <color> Prints text using the color color indented by indent (without adding a newline). Parameters: <indent> The column to move to before start printing. This parameter is optional. If ommitted - start output from current cursor position. <color> The color to use. <color> The text to print. colorPrintN [<indent>] <color> The same as colorPrint, except a trailing newline is added. EXAMPLES
Printing a green 'Hello World' with a newline: Using colorSet: $ colorSet green $ echo 'Hello World' $ colorReset Using colorPrint: $ colorPrint 'Hello World'; echo Using colorPrintN: $ colorPrintN 'Hello World' AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <gil@ran4.net> SEE ALSO
ldbash(1), libbash(1) Linux Epoch Linux
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