我想將從文件中取出的一些數據寫入文件的最後一行(而不是新行)。我正在使用以下腳本。如何在bash腳本中寫入文件的特定行?
#!/bin/bash
echo "Write the start and end file number:"
read sta end
echo "$sta" "$end"
for ((c="$sta"; c<="$end"; c++))
do
cp AnalyzeClusterParameterFile AnalyzeClusterParameterFile$c
awk '{if (NR== '$c' -10){print $1 " " $2 " " $3}}' center.dat >> AnalyzeClusterParameterFile$c
done
但它(AnalyzeClusterParameterFile $ C文件)將新行這樣
R內= 0.1!在Mpc
Router = 5!在Mpc
NumberOfPoints = 50!默認爲16
VirialDensity = 200!默認值是200
CenterListName =
5.044627347e-01 5.008533222e-01 5.043365095e-01
什麼其實我是想(AnalyzeClusterParameterFile $ C文件)是
R內= 0.1!在Mpc
Router = 5!在Mpc
NumberOfPoints = 50!默認爲16
VirialDensity = 200!默認值是200
CenterListName = 5.044627347e-01 5.008533222e-01 5.043365095e-01