I need to export the built in awk variables for columns so that they are available for the rest of the script. This is what I have so far:
When I run bash -x to debug, the variables do get assigned but then when the echo command runs they come up empty. I need to have these variables assigned so that the entire script can make use of them. Any ideas would be greatly appreciated.
Dear experts
I am learning awk command through some books on Solaris 8.
I have tested the folloing command
awk 'BEGIN { print match ("And" , /d/)}'
then the result is as following
awk: syntax error near line 1
awk: illegal statement near line 1
Could you please help on this and just... (4 Replies)
I have a master shell, which calls another shell to export some env variables. But when I just run the child shell from the command line, and see if the variables are exported by doing,
echo $EXPORTED_VAR1
I am not seeing the value.
But I am sure, I am using the child shell from a master... (4 Replies)
hi i want to write a shell script to set environment variables . But i am not been able to set that for the current shell instead i have to spawn a new shell. Is there a way to set the env variable for the current shell using shell script in bash shell ?
Thnx (2 Replies)
Hi,
I am a newbie to unix as well as scripting. I need to write a script, which on execution sets the necessay oracle variables.
Can someone help me out as to how to proceed? also can u suggest good tutorial for bash/shell scripting?
thanks (1 Reply)
I am working with Sun Solaris 9 and I want to export the environment variable from my application(xxxx.ksh) but I am not able to see it when I am using SET command
I am writing some variables which I have to set
COMMON_USER_HOME=${HOME}
export COMMON_USER_HOME
echo... (6 Replies)
Hi all guys,
how you can read in thread title, I'm deploying a bash script in which I have to export some variables inside it.
But (I think you know) the export command works only inside the script and so, on exit command, the variables aren't set like I set inside the script.
Consequently in... (8 Replies)
Dear all,
I have a big table of 50 columns and more then 100, 000 rows in mysql. Could you please help me that how I can export it as .csv or . txt that I can open it in MS excel?????
OR how can I export the specific columns of the table???
Thanks
AAWT (5 Replies)
Hi
I want to read variables from one file and then set it as environment variable;
The text file is test.txt which contains
SPEED:1000
IP:172.26.126.11
My code is:
while read line; do
var1=`echo $line | awk 'BEGIN {FS=":"} { print $1 }'`
echo $var1
var2=`echo $line | awk 'BEGIN {FS=":"}... (8 Replies)
So i have a script that is like this:
#!/bin/sh
VARA="elementary 1
elementary 2
nursery A
nursery B
highschool AZ"
echo "${ContentOfADifferentSCRIPT}" | sh
i do not have control over the script that is inside the variable "${ContentOfADifferentSCRIPT}".
however, i know that the... (3 Replies)
Discussion started by: SkySmart
3 Replies
LEARN ABOUT POSIX
export
EXPORT(P) POSIX Programmer's Manual EXPORT(P)
NAME
export - set the export attribute for variables
SYNOPSIS
export name[=word]...
export -p
DESCRIPTION
The shell shall give the export attribute to the variables corresponding to the specified names, which shall cause them to be in the envi-
ronment of subsequently executed commands. If the name of a variable is followed by = word, then the value of that variable shall be set to
word.
The export special built-in shall support the Base Definitions volume of IEEE Std 1003.1-2001, Section 12.2, Utility Syntax Guidelines.
When -p is specified, export shall write to the standard output the names and values of all exported variables, in the following format:
"export %s=%s
", <name>, <value>
if name is set, and:
"export %s
", <name>
if name is unset.
The shell shall format the output, including the proper use of quoting, so that it is suitable for reinput to the shell as commands that
achieve the same exporting results, except:
1. Read-only variables with values cannot be reset.
2. Variables that were unset at the time they were output need not be reset to the unset state if a value is assigned to the variable
between the time the state was saved and the time at which the saved output is reinput to the shell.
When no arguments are given, the results are unspecified.
OPTIONS
See the DESCRIPTION.
OPERANDS
See the DESCRIPTION.
STDIN
Not used.
INPUT FILES
None.
ENVIRONMENT VARIABLES
None.
ASYNCHRONOUS EVENTS
Default.
STDOUT
See the DESCRIPTION.
STDERR
The standard error shall be used only for diagnostic messages.
OUTPUT FILES
None.
EXTENDED DESCRIPTION
None.
EXIT STATUS
Zero.
CONSEQUENCES OF ERRORS
Default.
The following sections are informative.
APPLICATION USAGE
None.
EXAMPLES
Export PWD and HOME variables:
export PWD HOME
Set and export the PATH variable:
export PATH=/local/bin:$PATH
Save and restore all exported variables:
export -p > temp-fileunset a lot of variables... processing. temp-file
RATIONALE
Some historical shells use the no-argument case as the functional equivalent of what is required here with -p. This feature was left
unspecified because it is not historical practice in all shells, and some scripts may rely on the now-unspecified results on their imple-
mentations. Attempts to specify the -p output as the default case were unsuccessful in achieving consensus. The -p option was added to
allow portable access to the values that can be saved and then later restored using; for example, a dot script.
FUTURE DIRECTIONS
None.
SEE ALSO
Special Built-In Utilities
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained
online at http://www.opengroup.org/unix/online.html .
IEEE /The Open Group 2003 EXPORT(P)