---
name: "semwrite"
section: "1"
platform: "linux"
package: "selinux"
version: "2002031409-4"
release: "Debian 3.0 (Woody)"
platforms: ["linux"]
url: "https://new.carta.tech/semwrite"
---

# semwrite(1)

writes to a semaphore set

## NAME

semwrite - writes to a semaphore set

## SYNOPSIS

**semwrite** *id* *semaphore\_number\_operation\_pairs*

## DESCRIPTION

**semwrite** Writes to a series of semaphores in the  semaphore set specified by the identifier *id .* The semaphores are specified by number (starting from 0) and each semaphore has a positive or negative number by which that semaphore should be incremented or decremented.

## SEE ALSO

[**semget**(1)](/semget/1.md), [**semsid**(1)](/semsid/1.md), [**semread**(1)](/semread/1.md), [**semperm**(1)](/semperm/1.md), [**semop**(2)](/semop/2.md).