Qshell

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Qshell
[[Programmer|DeveloperTemplate:Pluralize from text]]IBM
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Operating systemIBM i
PlatformIBM Power Systems
[[Technical standard|StandardTemplate:Pluralize from text]]POSIX, X/Open
Available inEnglish
TypeCommand shell
WebsiteQshell
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Qshell is an optional command-line interpreter (shell) for the IBM i operating system. Qshell is based on POSIX and X/Open standards. It is a Bourne-like shell that also includes features of KornShell.[1] The utilities (or commands) are external programs that provide additional functions. The development team of Qshell had to deal with platform-specific issues such as translating between ASCII and EBCDIC. The shell supports interactive mode as well as batch processing and can run shell scripts from Unix-like operating systems with few or no modifications.[1]

Commands

The following is a list of commands that are supported by the Qshell command-line interpreter on IBM i 7.4.[2]

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Differences from other Unix shells

Qshell does not support the <> redirection operator or provide a command history. It also has no job control support as IBM i operating system does not have the concept of a foreground or background process group. The POSIX standard fg and bg built-in commands are therefore not available as well.[3]

Compared to PASE for i

According to IBM, QSHELL is a “Unix-like” interface built over IBM i. The commands issued by the user point to programs in a “Qshell” library. It began as a port from the ash shell, which was a Bourne-like shell created by Berkeley Software Design.[1]

See also

References

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  1. ^ a b c Page Module:Citation/CS1/styles.css has no content.Holt, Ted; Kulack, Fred (February 1, 2004). Qshell for iSeries. MC Press. ISBN 1-58347-046-8.
  2. ^ Page Module:Citation/CS1/styles.css has no content."List of all utilities". IBM.
  3. ^ Page Module:Citation/CS1/styles.css has no content."Differences with other interpreters". IBM.

Further reading

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