Print all open regular files sorted by the number of file handles open to each.
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List all open files of all processes. .
find /proc/*/fdLook through the /proc file descriptors .-xtype flist only symlinks to file .-printf "%l\n"print the symlink target .grep -P '^/(?!dev|proc|sys)'ignore files from /dev /proc or /sys .sort | uniq -c | sort -ncount the results . Many processes will create and immediately delete temporary files. These can the filtered out by adding:... | grep -v " (deleted)$" | ...Show Sample Output1find /proc/*/fd -xtype f -printf "%l\n" | grep -P '^/(?!dev|proc|sys)' | sort | uniq -c | sort -n -
0lsof -a -d 1-99 -Fn / | grep ^n | cut -b2- | sort | uniq -c | sort -n
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... | awk '($5 == 'REG') {'print $10'} | ...but then I spotted a bigger problem... . Here's some output from my machine:lsof | egrep 'w.+REG' | grep auditauditd 932 root 4w REG 253,1 3656976 265841 /var/log/audit/audit.log auditd 932 940 root 4w REG 253,1 3656976 265841 /var/log/audit/audit.log . Both threads of auditd have an open handle to the log file. The TID (thread id) is missing from the parent thread, so that line has only 9 columns. The child thread output has 10 columns. . This means your command counts up lots of blanks lines that ought to be files.