I would like to take a txt file and do some sort of grep command and save the output to a file to be used in R. Consider I have the following from a log file:
current_t: 178.027
(Filename: C:/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)
rv: -8.421698E-06
(Filename: C:/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)
NullReferenceException: Object reference not set to an instance of an object
at ModelActions.Update () [0x00000] in <filename unknown>:0
(Filename: Line: -1)
current_t: 179.7662
(Filename: C:/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)
rv: -8.413203E-06
(Filename: C:/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 37)
I want to be able to grab each line that has current_t and rv. Preferably I would I like to have it output as:
178.027 -8421698E-06
179.7662 -8.413203E-06
where all times are placed in a column and rv are placed in the following column. Is there a grep command for me to do something like this? Thanks!
awk to the rescue!
$ awk -F: '$1~/current_t/{ct=$2} $1~/rv/{print ct, $2}' file
178.027 -8.421698E-06
179.7662 -8.413203E-06
assumes your data has always matching pairs.