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begin =begin File.foreach('hist.txt') do |ln| next if ln =~ /^.{0,4}$/ next if ln =~ /^c\s/ puts ln end =end =begin File.open('hist.txt') do |f| f.each_line do |l| puts l end end =end =begin File.open('hist.txt') do |f| f.read.split(/\n/).sort.each do |l| puts l end end =end =begin File.open('hist.txt','r+') do |i| #rは読込専用,r+は読込書込だけど開いても書き込まなれければそのまま File.open('hist_back.txt','w+') do |o| #wは新規作成 o.write(i.read) #ここまでは処理されるが以下は処理されない i.puts o.read.split(/\n/).uniq #putsは一行ずつ end end =end File.open('hist.txt','r') do |i| File.open('hist_back.txt','w') do |o| o.write(i.read) end end File.open('hist_back.txt','r') do |i| File.open('hist.txt','w') do |o| o.puts i.read.split(/\n/).uniq end end rescue => e puts e.message end |
bash_historyの重複削除
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begin File.open('.bash_history','r') do |i| File.open('.bash_history.bak','w') do |o| o.write(i.read) end end File.open('.bash_history.bak','r') do |i| File.open('.bash_history','w') do |o| o.puts i.read.split(/\n/).uniq end end rescue => e puts e.message end |