Sponsored Content
Full Discussion: Shell script question
Top Forums Shell Programming and Scripting Shell script question Post 302520965 by luft on Monday 9th of May 2011 10:32:49 PM
Old 05-09-2011
Shell script question

Hello all,

I have a script that has the following lines of code followed by other lines of code.. I'm not quite sure about the syntax in line #2, specifically ":-" ..what operation does it perform?

export IA_DAYS=$2
export IA_DAYS=${IA_DAYS:-90}
export IAW_DAYS=77
export AC=${1:-RP}

Thanks for your time
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

shell script question

I am using ksh. There is a report having amounts in the following format, 34343.67- 2343.45 23434.89- I want to sum up all the amounts. For this I first need to find out if there is a minus sign at the end and prefix it before summing up. How to achieve this? I thought of using an... (2 Replies)
Discussion started by: tselvanin
2 Replies

2. UNIX for Dummies Questions & Answers

Linux Shell Question: how to print the shell script name ?

Suppose I have a script named "sc.sh" in the script how to print out its name "sc.sh"? (3 Replies)
Discussion started by: meili100
3 Replies

3. Shell Programming and Scripting

Shell Script question

Hello Experts, I am new at this and need some help. I am looking for a delete command that allows me after I grep for the hostname to delete all the lines between two characters. for example I want to delete the first line all the way up to the } character host test019 { hardware ethernet... (10 Replies)
Discussion started by: ryanique
10 Replies

4. Shell Programming and Scripting

shell script question

Hi, The contents of my file is below: Name,Location,Degree,Gender,Awards Robert,Philadelphia,Accounting,Male,5 Jane,Chicago,Business,Female,2 Allan,New York,Engineering,Male,6 Tom,Detroit,Computer Science,Male,10 Nancy,Milwaukee,Engineering,Female,4 I want to add a "ID" in the 1st line... (2 Replies)
Discussion started by: xinoo
2 Replies

5. Shell Programming and Scripting

shell script question

I have script as following.. server_status= some command | grep "Total error: 0" if ; then echo " Server $(hostname) is Down" >>Result fi else echo " Server is OK on $(hostname)" >>Result the if command seems to be not working properly for some... (13 Replies)
Discussion started by: s_linux
13 Replies

6. Homework & Coursework Questions

Question on shell script

Hiiiiiiiiiiiii all, Please i want your help fast, the teacher gave us this assignment can u help me to write it? this is the question: Write a shell script to point all prime numbers from the fibonacci series of integer N? using Red hat Os Thanks all and waiting for ur answers... (1 Reply)
Discussion started by: moonlips
1 Replies

7. Homework & Coursework Questions

question on shell script

hiiiiiiiiiiiii,,I found an error on my following script but couldnt find it!!! Can you please help me as soon as possible?! echo "enter a number " read n i=0 first=0 second=1 result=0 prime="true" echo –n " $first $second " while do result=`expr $first + $second` first=$second... (10 Replies)
Discussion started by: moonlips
10 Replies

8. Homework & Coursework Questions

question in shell script

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: Write a Bourne shell script which: • Has one command line argument. • If the command line argument is a... (5 Replies)
Discussion started by: abood1190
5 Replies

9. Shell Programming and Scripting

Shell script question

Hi all, can you plz check whether the below code is correct & some inputs. I need to read the below file and process it. input : /home/ibm/var.txt urgent not urgent not needed. #!/usr/bin/ksh VAR=/home/ibm/var.txt if ] then (7 Replies)
Discussion started by: ramkumar15
7 Replies

10. Shell Programming and Scripting

Shell script question

As per code it is getting matched. not sure why it assigning to cols=0. Any inputs please. Input : passed is shell.sh c tablename. if ; then cols=1 table=$2 else cols=0 table=$1 fi (1 Reply)
Discussion started by: ramkumar15
1 Replies
PCP.CONF(5)							File Formats Manual						       PCP.CONF(5)

NAME
pcp.conf - the Performance Co-Pilot configuration and environment file SYNOPSIS
/etc/pcp.conf DESCRIPTION
When using Performance Co-Pilot (PCP) tools and utilities and when calling PCP library functions, a standard set of environment variables are defined in /etc/pcp.conf. These variables are generally used to specify the location of various PCP pieces in the file system and may be loaded into shell scripts by sourcing the /etc/pcp.env(5) shell script and queried by C/C++ programs using the pmGetConfig(3) library function. If a variable is already defined in the environment, the values in pcp.conf do not override those values, i.e. the values in pcp.conf serve as installation defaults only. Both the pcp.env and pcp.conf files are expected to be found in /etc by default. If required, the pcp.conf file may be relocated and PCP_CONF set in the environment to specify the full path to the new location. The pcp.env file can not be relocated (this is the only hard coded path required by PCP). The syntax rules for pcp.conf are as follows : 1. the general syntax is PCP_VARIABLE_NAME=variable value to end of line 2. lines that begin with # and all blank lines are ignored. 3. all variables must be prefixed with PCP_. This is a security issue - variables that do not have this prefix will be silently ignored. 4. there should be no space between the variable name and the literal = and no space between the = and the variable value (unless the value actually starts with a space). This is required because the pcp.conf file may be sourced directly by Makefiles as well as inter- preted by the pcp.env script and the pmGetConfig function. 5. variable values may contain spaces and should not be quoted. The pcp.env script automatically quotes all variable values from the character immediately following the = through to the end of the line. For further details and an explanation of the use of each variable, see the comments in the /etc/pcp.conf file itself. ENVIRONMENT
The PCP_CONF environment variable specifies an alternative path to the pcp.conf file. SEE ALSO
PCPIntro(1), PCPIntro(3), PMAPI(3), pmGetConfig(3) and pcp.env(5). Performance Co-Pilot PCP PCP.CONF(5)
All times are GMT -4. The time now is 07:07 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy