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Script to read file and run multiple jobs

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Top Forums Shell Programming and Scripting Script to read file and run multiple jobs
# 1  
Old 10-24-2017
Script to read file and run multiple jobs
I have a txt file

Code:
line1
line2
line3

Code:
$!/bin/sh
cat /tmp/lus.txt | while read line
do
esxcli storage vmfs unmap -u $lin -n 4000
done

this works but does in one line at a time.

how do I do all lines at once simutaeously?


Moderator's Comments:
Mod Comment Please use CODE tags as required by forum rules!
Last edited by RudiC; 10-24-2017 at 12:39 PM.. Reason: Added CODE tags.
# 2  
Old 10-24-2017
Code:
#!/bin/sh
while read line
do
   esxcli storage vmfs unmap -u $line -n 4000 &
done < /tmp/lus.txt
wait     # (or not)

# 3  
Old 10-24-2017
can you explain? what is wait for?

---------- Post updated at 09:18 AM ---------- Previous update was at 09:15 AM ----------

is this going to run all 30 lines at once?

Code:
esxcli storage vmfs unmap -u $line -n 4000 &


Moderator's Comments:
Mod Comment
Please wrap all code, files, input & output/errors in CODE tags.
It makes it easier to read and preserves spaces for indenting or fixed-width data.
Last edited by rbatte1; 10-24-2017 at 01:40 PM.. Reason: Added CODE tags
# 4  
Old 10-24-2017
The wait command will not complete until all background processes for this shell have ended. This means your script will spawn all your 30 (or whatever) esxcli commands and then hang until they complete so you know when to carry on. If you don't want this to happen, simply remove the wait




Robin
# 5  
Old 10-24-2017
esxi
does esxi support running & jobs in the bg?
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