bash - How to store a variable with command status [shell script] -

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i searching word in file through grep command. need store status in variable v1 0 or 1. how can it?

tail -n 2 test.s | grep -q "fa|"$(date "+%m/%d/%y") tail -n 2 test1.s | grep -q "fa|"$(date "+%m/%d/%y") tail -n 2 test2.s | grep -q "fa|"$(date "+%m/%d/%y")

if above searching word found variable v1 value should 0 else 1.

file content :

keytran|20160111|test.s submkeyqwqwqw|ndm|jan 11 01:34|test.s|6666666|sdgdh-rb|ltd.et.cts00.act loadstatus|thunnnb|6666666|fa|01/16/2016|01:34:57|01/16/2016 |01:37:13|load|test.s

please suggest

depending on shell, after each command execution status of previous command available in special variable: bash family $?, csh family $status$:

#/bin/bash tail -n 2 test.s | grep -q "fa|"$(date "+%m/%d/%y") v1=$?

or

#/bin/csh tail -n 2 test.s | grep -q "fa|"$(date "+%m/%d/%y") set v1=$status

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