Memo/Linux/lsof

lsof: 開いているファイル/ネットワーク数を調べる †

記事
- lsofコマンドの使い方 - Qiita
- lsofコマンドで覚えておきたい使い方9個 | 俺的備忘録〜なんかいろいろ〜

プロセス毎のファイルディスクリプタの数 †

pgrep が一つのpidを返す場合、「prep」が使える

# /proc/以下のファイル数を使う場合
sudo ls /proc/$(pgrep -u steam -f ShooterGameServer)/fd/ | wc -l
24

# lsofでFDが数字から始めるものだけを使う場合
sudo lsof -p $(pgrep -u steam -f ShooterGameServer) | perl -ane 'if($F[3] =~ /^\d+/){print $_;}' | wc -l
24

↑

特定のポートを使用しているプロセスを調べる †

記事
- cloudpackブログ - cloudpack（クラウドパック）Amazon EC2などクラウドの導入設計、運用・保守サービス: 特定のポートを使用しているプロセスを調べるには

22番を使用しているプロセスを探す
sudo /usr/sbin/lsof -i:22

ftpプロセスを探す
lsof -i:20,21

プロセス名を指定
lsof -c ssh

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Memo/Linux/lsof

lsof: 開いているファイル/ネットワーク数を調べる †

プロセス毎のファイルディスクリプタの数 †

特定のポートを使用しているプロセスを調べる †

Software

Programming

Game

雑記

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