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23 lines
1 KiB
Text
23 lines
1 KiB
Text
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SASH - a stand-alone shell with many built-in commands
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The sash program is a stand-alone shell which is useful for recovering
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from certain types of system failures. In particular, it was created
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in order to cope with the problem of missing shared libraries or important
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executables.
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Sash can execute external programs, as in any shell. There are no
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restrictions on these commands, as the standard shell is used to execute
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them if there are any non-wildcard meta-characters in the command.
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More importantly, however, is that many of the standard system commands
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are built-in to sash.
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This script applies the 'sash-plus-patches' command collection, which
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adds the following commands: 'chroot' 'pivot_root' and 'losetup'.
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These functions actually provide interfaces to the respective Linux system
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calls. They are specificly useful when sash is used as a shell in "initial
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ramdisk" (initrd) environments.
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In addition, a simple shell variable expansion support has been added, e.g.
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the variable "$(VAR)" is replaced by the content of the variable "VAR".
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