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- Addendum for Version 1.1
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- SKSH
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- A ksh-like Shell for the Amiga
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- Version 1.2
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- (Copyright) 1989
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- Steve Koren
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- November 19, 1989
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- Addendum to Version 1.1
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- This document describes additions and changes to SKsh since
- version 1.0.
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- More Filename Compleation Features
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- Two new filename completion features have been added.
- <esc>= will list matching filenames and let you continue
- typing, and <esc>* will insert matching filenames into the
- command line. See the 'filename completion' section of the
- Users' Guide for more details on the exact operation of
- these new features.
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- Completed rm, cp, and mv Commands
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- The 'rm', 'cp', and 'mv' commands have been completed.
- 'rm' and 'cp' now support a -r flag for recursive
- operations, and all three support a '-v' (verbose) flag
- which prints the file names as they are operated upon.
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- The only remaining addition is a -c (clone) option to 'cp'
- which keeps date stamps and file permissions intact. I'll
- add this as soon as I figure out how.
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- Command Line Editing changes
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- The word-based command line editing features now have a
- slightly more intuitive idea of what a 'word' is.
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- Return Code bug fixed
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- Version 1.0 contained a bug which "lost" return codes from
- external commands. This means that, for example, the 'cmp
- -s' command could not be used in a test statement. This
- bug has been fixed in 1.1. Also, $? is set accordingly.
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- '.' (source) bug fixed
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- An error in the .skshinit script has been fixed. '.' now
- can be used to 'source' a file if the '.' is the first
- command on the line. This was broken in 1.0, since the
- alias definition read:
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- alias . ='source'
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- instead of the correct:
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- alias '.' ='source'
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- SKSH Amiga Shell Page 2 Addendum to 1.1
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- Superflous directory lock bug fixed
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- SKsh 1.0 often neglected to UnLock() directories after a
- directory scan. The directories could not then be removed.
- This bug has been fixed in 1.1.
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- export bug fixed
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- A bug in 1.0 caused 'export' to incorrectly set the value
- of the AmigaDos environment variable. This has been fixed.
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- However, a bug in either the compiler or OS is still
- preventing 'getenv' from working correctly. I have
- isolated this bug in a 5-line test program, but I cannot
- fix it since it does not seem to be an SKsh bug.
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- cp acts friendlier upon file write error
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- In 1.0, the 'cp' command would try to write all remaining
- files even if one file had a write-error. This meant that
- the 'disk full' requester would appear multiple times.
- This bug has been fixed in 1.1, and 'cp' gives up after the
- first file write error. In addition, the partially
- completed file is properly UnLocked.
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- Break key now works during directory scan
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- You can now type ^c during a directory scan, and SKsh will
- halt the scan. This is useful when you a 'dir' on a full
- directory and then realize you don't need the information.
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- SKsh is now "pure"
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- SKsh can now be made resident. This costed about 3K of
- executable size, but will save about 70k bytes for each
- subsequent invokation of SKsh. In order for this to work
- correctly, SKsh must be invoked from the AmigaDos 'shell'.
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- Documenation updates
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- The documentation has been updated to reflect the changes
- in 1.1, and some documentation bugs have been fixed. In
- addition, I added a 'Hints.doc' file. I will include
- helpful hints and "neat" things in this file as I encounter
- them. For example, this 'Hints.doc.' file has instructions
- for making 'newcli' automatically start a resident SKsh
- program, and the SKsh 'exit' command automatically remove
- this window when SKsh completes. If you have anything
- which you think may be helpful to other people, send it to
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- SKSH Amiga Shell Page 3 Addendum to 1.1
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- me and I might include it in that file.
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- Shell function memory leak bug fixed
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- In version 1.0, about 90 bytes of memory were lost for each
- function that was run. This bug has been fixed in version
- 1.1.
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- New backward-delete word editing command
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- A backard delete word editing command has been added. It
- is mapped to <esc><backspace>.
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- New Run function to search SKsh path
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- A new 'run' function has been defined in .skshinit which
- searches the sksh $PATH. This avoides the awkward
- construction of:
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- run $(which command) args
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- You can examine the definition of this function in the
- .skshinit file.
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- Change to automatic non-SKsh shell script detection
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- SKsh now accepts '/*' in addition to '#!' and ';!' as the
- first two characters of a non-SKsh shell script. This
- change was made in an attempt to provide Arexx script
- support, but please note that I don't have Arexx and I have
- never tried this. I have just been told that Arexx uses
- '/*' as the begin comment character. Something like:
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- /*rx
- */
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- At the beginning of an Arexx script *might* work, involing
- the Arexx script without an explicit 'rx' call. Again, I
- have not tested this.
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- Other Notes
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- This will probably be the last 'beta' version of SKsh. That
- is, consider this version to still be in the 'debugging'
- stages. It is more stable than the first, but I'm sure there
- are still some bugs that need to be worked out. I hope to
- find most of the serious ones by the next release. In the
- meantime, this version is more robust then 1.0.
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- SKSH Amiga Shell Page 4 Addendum to 1.1
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- One final note: be sure that you re-install the .skshinit file
- in the s: directory, since it has changed from version 1.0.
- The .skshrc file has not changed, so that one need not be re-
- installed.
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- SKSH Amiga Shell Page 5 Addendum to 1.1
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