/[mailutils]/mailutils/doc/texinfo/programs.texi
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revision 1.19 by gray, Thu Sep 26 14:44:42 2002 UTC revision 1.20 by gray, Wed Oct 2 14:41:17 2002 UTC
# Line 1264  Displays current mailbox summary. E.g.: Line 1264  Displays current mailbox summary. E.g.:
1264  @itemx p [@var{msglist}]  @itemx p [@var{msglist}]
1265  @item type [@var{msglist}]  @item type [@var{msglist}]
1266  @itemx t [@var{msglist}]  @itemx t [@var{msglist}]
1267  Prints out the messages from @var{msglist}. If the variable @code{crt}  Prints out the messages from @var{msglist}. The variable @code{crt}
1268  is set and the number of lines in the message is greater than the number  determines the minimum number of lines the body of the message must
1269  of lines on screen, the message is piped through pager command specified  contain in order to be piped through pager command specified
1270  by environment variable @code{PAGER}. The number of lines on screen is  by environment variable @code{PAGER}. If @code{crt} is set to a numeric
1271  controlled by @code{screen} variable.  value, this value is taken as the mininmum number of lines. Otherwise,
1272    if @code{crt} is set without a value then the height of the terminal
1273     screen is used to compute the threshold.  The number of lines on
1274    screen is controlled by @code{screen} variable.
1275  @item Print [@var{msglist}]  @item Print [@var{msglist}]
1276  @itemx P [@var{msglist}]  @itemx P [@var{msglist}]
1277  @itemx Type [@var{msglist}]  @itemx Type [@var{msglist}]
# Line 1470  To undo the effect of the previous examp Line 1473  To undo the effect of the previous examp
1473  & unset askcc crt indentprefix  & unset askcc crt indentprefix
1474  @end example  @end example
1475    
1476    @subheading Setting and unsetting shell environment variables.
1477    
1478    Shell environment may be modified using @samp{setenv} (@samp{sete})
1479    command. The command takes a list of assignments. The syntax of an
1480    assignment is:
1481    
1482    @table @samp
1483    @item @var{name}=@var{value}
1484    If variable @var{name} does not already exist in the environment,
1485    then it is added to the environment with the value @var{value}.
1486    If @var{name} does exist, then its value in the environment is
1487    changed to @var{value}.
1488    @item @var{name}
1489    Delete the variable @var{name} from the environment (``unset'' it).
1490    @end table
1491    
1492  @subheading Conditional statements  @subheading Conditional statements
1493    
1494  The conditional statement allows to execute a set of mail commands  The conditional statement allows to execute a set of mail commands
# Line 1665  fails, the value of environment variable Line 1684  fails, the value of environment variable
1684  This variable contains the number of columns on terminal screen.  This variable contains the number of columns on terminal screen.
1685    
1686  @item crt  @item crt
1687  @*Type: Boolean.  @*Type: Boolean or Numeric
1688  @*Default: True in interactive mode, False otherwise.  @*Default: True in interactive mode, False otherwise.
1689    
1690  If @code{True}, any messages with number of lines greater than number of  The variable @code{crt} determines the minimum number of lines the body
1691  lines on terminal screen (as determined by @code{screen} variable) will  of the message must contain in order to be piped through pager command
1692  be printed using program set in the environment variable @code{ENVIRON}.  specified by environment variable @code{PAGER}. If @code{crt} is set
1693    to a numeric value, this value is taken as the threshold. Otherwise,
1694    if @code{crt} is set without a value, then the height of the terminal
1695    screen is used to compute the threshold.  The number of lines on
1696    screen is controlled by @code{screen} variable.
1697    
1698  @item dot  @item dot
1699  @*Type: Boolean.  @*Type: Boolean.

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