PRINTENV(1) User Commands PRINTENV(1)NAME
printenv - print all or part of environment
SYNOPSIS
printenv [OPTION]... [VARIABLE]...
DESCRIPTION
Print the values of the specified environment VARIABLE(s). If no VARIABLE is specified, print name and value pairs for them all.
-0, --null
end each output line with 0 byte rather than newline
--help display this help and exit
--version
output version information and exit
NOTE: your shell may have its own version of printenv, which usually supersedes the version described here. Please refer to your shell's
documentation for details about the options it supports.
AUTHOR
Written by David MacKenzie and Richard Mlynarik.
REPORTING BUGS
Report printenv bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report printenv translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
The full documentation for printenv is maintained as a Texinfo manual. If the info and printenv programs are properly installed at your
site, the command
info coreutils 'printenv invocation'
should give you access to the complete manual.
GNU coreutils 8.5 February 2011 PRINTENV(1)
Check Out this Related Man Page
ENV(1) User Commands ENV(1)NAME
env - run a program in a modified environment
SYNOPSIS
env [OPTION]... [-] [NAME=VALUE]... [COMMAND [ARG]...]
DESCRIPTION
Set each NAME to VALUE in the environment and run COMMAND.
-i, --ignore-environment
start with an empty environment
-0, --null
end each output line with 0 byte rather than newline
-u, --unset=NAME
remove variable from the environment
--help display this help and exit
--version
output version information and exit
A mere - implies -i. If no COMMAND, print the resulting environment.
AUTHOR
Written by Richard Mlynarik and David MacKenzie.
REPORTING BUGS
Report env bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report env translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
The full documentation for env is maintained as a Texinfo manual. If the info and env programs are properly installed at your site, the
command
info coreutils 'env invocation'
should give you access to the complete manual.
GNU coreutils 8.5 February 2011 ENV(1)
I try to test the carriage return in a variable.
$ LENGTH=`expr $VARIABLE : ".*"` will return the length of the variable. But this doesn't work if $VARIABLE has zero length.
Any help will be well appreciated.
Thanks in advance.
Giovanni (4 Replies)
When I type "printenv" I have some informations as LANG PATH PWD....
- Where is the file which contain this informations?
- When PWD is charged in the system...
Thanks... (1 Reply)
Hello all,
I have a situation where I need to parse for certain items from a $VARIABLE within a sh script.
The sh script is run when an alert comes in.
The alert data payload has a Message field called "EVENTMSG"
The script that is run takes the "EVENTMSG" and prints it out to the... (12 Replies)
so I'm going over this script someone else wrote and I haven't seen the aforementioned construct before.
The code says:
declare VAR1="${!VARIABLE:-\n}"
I know what the ":-\n" does but I don't understand why would one negate ("!") the variable in the first place. Am I reading this right... (2 Replies)