gistfile1.sh

#myscript.sh

while read line; do 
  echo "$line" | awk '{print "first Field:"$1}'
  echo "$line" | tee -a /tmp/myfile.log | tr ['a-z'] ['A-Z']
done 

#! /bin/bash 
cat - | awk '{print "here come my long line aws statement:"$1}' 


stdin=$(cat -)
echo $stdin | awk '{print "here come my long line aws statement:"$1}'
echo '----------'
# do smore things with stdin
echo $stdin | tr ['a-z'] ['A-Z']

----8<---- INVOKE ----8<-----

$ cat /dev/urandom | hexdump | ./mscript.sh


----8<---- STDOUT ----8<-----

first Field:0001360
0001360 78B4 1FB9 C55F 2910 D69C 0C16 0D8E 4458
first Field:0001370
0001370 D851 C3E7 D849 858B B6A8 732A 76CB FC5D
first Field:0001380
0001380 3516 F665 D435 29AB AC50 5DFF C778 6D58

----8<---- tail /tmp/myfile.log -------8<--------
...
0001360 78b4 1fb9 c55f 2910 d69c 0c16 0d8e 4458
0001370 d851 c3e7 d849 858b b6a8 732a 76cb fc5d
0001380 3516 f665 d435 29ab ac50 5dff c778 6d58