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Minor wording change at start of DESCRIPTION.
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@ -46,16 +46,16 @@ shmctl \- shared memory control
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.SH SYNOPSIS
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.ad l
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.B #include <sys/ipc.h>
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.sp
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.B #include <sys/shm.h>
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.sp
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.BI "int shmctl(int " shmid ", int " cmd ", struct shmid_ds *" buf );
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.ad b
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.SH DESCRIPTION
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.BR shmctl ()
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allows the caller to obtain information about a shared memory segment,
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set the owner, group, and permissions of a segment,
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or destroy a segment.
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performs the control operation specified by
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.I cmd
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on the shared memory segment whose identifier is given in
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.IR shmid .
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.PP
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The
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.I buf
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