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# variable names may contain underscores --------------------------------------
echo '$v_v = 5' | tcsim 2>&1
# variable names must not contain plus signs
echo '$v+v = 5' | tcsim 2>&1
ERROR
<stdin>:1: syntax error near "$v"
# simple command variable -----------------------------------------------------
tcsim
dev eth0 10000
command $c = send 0x88 x 4
command $c
send 0x66 x 4
command $c
EOF
0.000000 E : 0x00000000 4 : eth0: 88888888
0.000000 D : 0x00000000 4 : eth0: 88888888
0.000000 E : 0x00000001 4 : eth0: 66666666
0.000000 E : 0x00000002 4 : eth0: 88888888
# command variable with "every" -----------------------------------------------
tcsim
dev eth0 10000
command $c = send 0x77 x 4
every 1s command $c
time 1.5s
command $c
time 2.5s
end
EOF
0.000000 E : 0x00000000 4 : eth0: 77777777
0.000000 D : 0x00000000 4 : eth0: 77777777
1.000000 E : 0x00000001 4 : eth0: 77777777
1.000000 D : 0x00000001 4 : eth0: 77777777
1.500000 E : 0x00000002 4 : eth0: 77777777
1.500000 D : 0x00000002 4 : eth0: 77777777
2.000000 E : 0x00000003 4 : eth0: 77777777
2.000000 D : 0x00000003 4 : eth0: 77777777
3.000000 E : 0x00000004 4 : eth0: 77777777
3.000000 D : 0x00000004 4 : eth0: 77777777
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