HP R4.2 - Manual (Page 505)

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Summary of Commands explain
UCS 1000 R4.2 Administration 585-313-507 Issue 3 April 2000 466
The following example erases phrases 218 through 222 and phrase 225 from
talkfile 26.
erase phrase 218-222, 225 from talkfile 26
The following example erases all phrases from talkfile 29.
erase phrase all from talkfile 29
See Also
add
copy
list
explain
The explain command displays on-line error message explanations.
Synopsis
explain {msgID} [...]
explain -l {pattern} [...]
explain -d {msgID} [...]