.\"             -*-Nroff-*-.\"  This page Copyright (C) 1993 Matt Welsh, mdw@sunsite.unc.edu..\"  Freely distributable under the terms of the GPL.TH FREE 1 "20 Mar 1993 " "Cohesive Systems" "Linux User's Manual".SH NAMEfree \- Display amount of free and used memory in the system.SH SYNOPSIS.BR "free " [ "\-b" " | " "\-k" " | " "\-m" "] [" "\-o" "] [" "\-s".I delay.RB "] [" "\-t" "] [" "\-V" ].SH DESCRIPTION\fBfree\fP displays the total amount of free and used physical and swap memory in the system, as well as the shared memory and buffers used bythe kernel..SS OptionsThe \fB-b\fP switch displays the amount of memory in bytes; the \fB-k\fP switch (set by default) displays it in kilobytes; the \fB-m\fPswitch displays it in megabytes..PPThe \fB-t\fP switch displays a line containing the totals..PPThe \fB-o\fP switch disables the display of a "buffer adjusted" line. Unlessspecified \fBfree\fP subtracts/adds buffer memory from/to the used/free memoryreports (respectively!)..PPThe \fB-s\fP switch activates continuous polling \fIdelay\fP seconds apart. Youmay actually specify any floating point number for \fIdelay\fP, .BR usleep (3)is used for microsecond resolution delay times..PPThe \fB\-V\fP displays version information..SH FILES.ta.IR /proc/meminfo "\-\- memory information".fi.SH "SEE ALSO".BR ps (1),.BR top(1).SH AUTHORSWritten by Brian Edmonds. Send bug reports to <procps-bugs@redhat.com>