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awk program to analyse and report on listing of open files
Linux Utilities example from a Well House Consultants training course
More on Linux Utilities [link] Source code: lsof_extract.awk Module: A166
# sample output from lsof: # bash 15896 wellho mem REG 8,3 19784 11928659 /lib/libdl-2.12.so lsof | grep -v "Permission denied" | \ awk ' BEGIN{n=0;total=0}; {size = $7; inode = $8; n++; unique[inode] = size+0; c[inode]++; name[inode] = $9; procs[inode] = procs[inode]" "$1;}; END{ format = "%18s %3s %9s %30s %s\n"; printf(format"\n","key","no.","size","name","from")}; END{for (key in unique) {if (unique[key] > 0) {printf(format,key,c[key],unique[key],name[key],procs[key]); }; total += unique[key]; }; printf("\n"format,"Total open sizes","",total,"","","")}; ' # Sample Output: # # key no. size name from # # 1377097 1 26058 /usr/lib/gconv/gconv-modules.cache bash # 11928659 3 19784 /lib/libdl-2.12.so bash lsof lsof # 11928792 2 122436 /lib/libselinux.so.1 lsof lsof # 11928582 1 58704 /lib/libnss_files-2.12.so bash # 6242797 3 4096 /home/wellho/tryme bash lsof lsof # 11928786 3 142472 /lib/ld-2.12.so bash lsof lsof # 1353136 2 146592 /usr/sbin/lsof lsof lsof # 1352233 3 99158544 /usr/lib/locale/locale-archive bash lsof lsof # 11928819 1 99636 /lib/libtinfo.so.5.7 bash # 11928787 3 1906124 /lib/libc-2.12.so bash lsof lsof # 2 3 4096 / bash lsof lsof # 13262893 1 874376 /bin/bash bash # # Total open sizes 102562918 # # # Learn about this subject
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