Debian Almquist shell (dash) is a POSIX-compliant Unix shell, much smaller than bash. It requires less disk space but is also less feature rich. POSIX or Portable Operating System Interface[1] is the collective name of a family of related standards specified by the IEEE to define the application programming interface (API) for software compatible with variants of the Unix operating system. ... Screenshot of a sample Bash session, taken on Gentoo Linux. ... This article is about the Unix shell. ...
dash is a direct descendant of the NetBSD version of the Almquist Shell (ash). It was ported to Linux by Herbert Xu in early 1997. It was renamed to dash in 2002. The Almquist shell (ash) is Kenneth Almquists clone of the Bourne shell. ...
dash executes scripts faster than bash and depends on fewer libraries. It is believed to be more reliable in case of upgrade problems or disk failures. This article is about the Unix shell. ...
dash may be used as:
shell on the installation floppy disks.
root user shell.
/bin/sh replacement.
a testing environment for shell scripts to verify their compatibility with POSIX syntax.
dash is a modern replacement for ash in the Debian project, and (as of the 6.10 release) is the default /bin/sh in Ubuntu. However, the transition in Ubuntu to making dash /bin/sh has broken numerous shell scripts that relied upon bash-specific functionality, also known as bashisms. The Almquist shell (ash) is Kenneth Almquists clone of the Bourne shell. ... Debian is a project based around the development of a free, complete operating system through the collaboration of volunteers from around the world. ... Ubuntu (IPA pronunciation: ) is a widely used[3] Linux distribution predominantly targeted at personal computers. ...
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