for example, the following result is horizontal
/usr/java/jdk1.8.0_51/bin/jstat -gc 24954
S0C S1C S0U S1U EC EU OC OU MC MU CCSC CCSU YGC YGCT FGC FGCT GCT
2048.0 2048.0 1675.5 0.0 790528.0 106496.7 462848.0 317451.4 191128.0 181061.6 21160.0 19614.7 512 11.773 5 5.595 17.368
I want it to be displayed vertically, which is
S0C 2048.0
S1C 2048.0
...
use the rs command to transpose the line example
jstat -gc 36958 |rs -T
S0C 0.0
S1C 4096.0
S0U 0.0
S1U 4096.0
EC 64512.0
EU 45056.0
OC 62464.0
OU 48041.5
MC 43548.0
MU 40744.4
CCSC 5196.0
CCSU 4293.5
YGC 22
YGCT 1.494
FGC 0
FGCT 0.000
GCT 1.494
Mac OS rs is installed by default.
Ubuntu can be installed through sudo apt install rs .
the rs command upstairs is very good. If there is no rs command, you can implement it through awk:
jstat -gc 24954|awk '{for(n=0;nPP<NF;)a[n]=a[n]?a[n]FS$n:$n}END{for(n=0;nPP<NF;)print a[n]}'Previous: Find other similar articles? A,B,C.
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