We have migrated from a unix solaris server to a linux server. When we run the same pieces of code, they are behaving very differently. Some of the problems I am facing are -
cat filename | read var1 var2
echo "var1 var2"
works in unix, but returns null values in linux.
interesting.... what do you on Solaris?
First, echo have
Code:
echo "var1 var2"
where you probably meant:
Code:
echo "${var1} ${var2}"
besides the above, this will not return anything as you're PIPING to 'read' which creates a subshell which exits after the 'read' is done and your var1/var2 vanish as well.
Quote:
Originally Posted by novice1324
Similarly, I am not getting any results when I give the 'compress' command. It gives me an error saying "compress not found".
Your $PATH env var probably does not include the directory where 'compress' resides on linux (if it's installed at all).
Quote:
Originally Posted by novice1324
This is impacting a lot of the legacy code. So, is there any way I can enlist the differences at once and go and fix all of it instead of having to fix them one by one when they fail?
Thanks for your time!
Take a look at this OS comparison chart, but your problems are much more shell fundamental....
I'm very new to all of this, so I apologize in advance if my post comes off incoherent, or terms aren't used correctly :rolleyes:
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LEARN ABOUT PLAN9
env
ENV(3) Library Functions Manual ENV(3)NAME
env - environment variables
SYNOPSIS
bind #e /env
/env/var1
/env/var2
...
DESCRIPTION
The env device serves a one-level directory containing files with arbitrary names and contents. The intention is that the file name is the
name of an environment variable (see rc(1)), and the content is the variable's current value.
When a fork(2) system call creates a new process, both the parent and the child continue to see exactly the same files in the env device:
changes made in either process can be noticed by the other. In contrast, an rfork system call with the RFENVG bit set (see fork(2)) causes
a split: initially both process groups see the same environment files, but any changes made in one process group cannot be noticed by the
other. An rfork with RFCENVG splits and then clears the environment.
SEE ALSO rc(1), fork(2)SOURCE
/sys/src/9/port/devenv.c
BUGS
A write starting at an offset after the current extent of a file yields an error instead of zero filling.
ENV(3)