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No, this just applies to the subshell of the (...). Here is another example, with first page of screen output:

$ (cd GnuCash ; find * -type f|while read f; do fi [ ! -s ~/GnuCash2/"$f" ]thencp...

I use things like this a lot in ksh and bash, but lately bash has been printing the command for every loop:
... | while read f
do
if [ "$(cmp $f xx/$f 2>&1)" = "" ]
then
echo Differ "$f"
fi...

Maybe you could just change the time zone $TZ to get your different dates?

Yiou can tunnel the local browser to the remote host, too, usung ssh.

Seems simpler in sed:sed '
/^EXIT$/{
${
s/$/\
:JCWPROD/
b
}
N
/\n:JCWPROD/b
s/.*\n/&:JCWPROD\
/
}
'

Save testing, delete earlier:sed '/^0*$/!h ; $!d ; g' file

Some versions or 'tr' insist on char sets in and out in square brackets, probably a POSIX thing. You could 'tr' both ' ' and ',' to '\n' or 'tr' ',' to '\n' and then "tr -d ' '". The 'tr' is very...

Change the date on a reboot, so the entire system is quiescent (still one session), perhaps with an init script?

The ksh can tell you version if you have command line editing (set -o vi or emacs) by typing escape + ctrl-V. Some systems have an enhanced ksh93 as dtksh (in the CDE package) or the like, even if...

Doing date delta can be done in many languages, but for shell the easiest is the GNU date (which you can add to your system, perhaps as a user local executable) or you can search here for my tool...

Bold is pretty terminal specific, and done in the presentation layer. Always design presentation on the end, after the data is parsed. Do you really want the shell to be the presentation tool? ...

My choice would be sed, but the 'tr -s' solution is neat if you have it.
sed '
s/, */\
/g
' in_file >out_file

Maybe this would work better. I used its more primitive cousin '-o' on old tar. Sometimes ids do not match up between systems, and root ownership is not desirable:
--owner=NAME

Even with ERE, you need to run it twice, perhaps conditionally if the first hits, as you used both start and end field '|'. Otherwise, you miss the following adjacent fields on a line like:...

Keep it basic:while read var1 var2
do
another_command # This will find var1 and var2 in its environment.
done < in_file

You can pick a replacement separator character or create the directory . . . .

Writing Requirements pays better than Coding . . . . :D

Can we see example desired output?

PS: Used/Free memory in a VM system is pretty meaningless. Once a system goes quiescent, the free memory just represents recent proceess terminations, which make a bunch of free pages. Pages may be...

Sudden adjustments in the clock mean that timers can instantly expire invalidly. Some time adjustment programs move the time gradually to the desired time so there is no disruption. In this...

You can put gnu date anywhere and call it when you need yesterday, no configuration or other system level change.

Well, 'date' is just a program file, you can get a Gnu date and call it gdate or by path.

I wrote tm2tm as a more task oriented tool than date, not cluttered with clock setting. It is easy to...

Are the values fractional nn.nnnnnn, so they need to be truncated to int before counting? I assume they are in text, being space and line separated. Examples are nice. Still, with x and y ranges of...

If lines of text, practically the essence of 'split': https://www.unix.com/man-page/linux/1/split/

Tons of compile time for JAVA, apparently! :D

Is ther a Python hacker in the house? Can Ruby do this?