Could anyone help explain this? Post: 302343381

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please explain this

zsh 4.3.4% cat file ACFCFACCACARCSHFARCVJVASTVAJFTVAJVGHBAJ zsh 4.3.4% cat file1 A C F R zsh 4.3.4% <file1 while read;do printf "%s=%d\n" "$REPLY" "${#$(<file)//}";done A=9 C=7 F=4 R=2 That was the previous post. But , can anybody can explain me in detail about this line zsh...

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Please can any one explain this ${0##/}

I did not understand what is ${0##/} PGM=${0##/} TMP=/tmp/${PGM}.$$ Please explain me.

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please explain the below

could u please convert the below statement to shell script ---------- logdir=/smp/dyn/logfiles/cpm/pgm/pgIm $logdir = $logdir ."/pgIm${toDate}*"; ---- could u please explain the below clearly grep -i adding $logdir | grep -iv equation | awk '{print \$NF}' | sort -u | sed -e...

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can anyone explain this?

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Please explain this

if then echo "Syntax: $0 <sid> <COLD/HOT> <DEST>" exit fi if --------------what does this mean??? echo "Syntax: $0 <sid> <COLD/HOT> <DEST>"---pls explain this as well

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can any one explain this example

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Explain $# please

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anyone can explain this?

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Can someone explain this for me?

Can someone do me a favour and explain the following for me: ((r=$RANDOM%$n+1)) I know what $RANDOM does but what is % sign and what does it do with %$n+1?

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How I can explain this?

Hi friends! I'm learning UNIX and I have a small question. Working with Shell, i put the name of one executable (in c language) + one number and it says this: $ gcc misterioso_4.c $ ./misterioso_4 6 got: , I can not find an answer in the manual because I havent applied any variable....

LEARN ABOUT OSF1

dohash

dohash(8)						      System Manager's Manual							 dohash(8)

NAME

       dohash, undohash - Hashes or unhashes IMAP configuration directories

SYNOPSIS

       /usr/sbin/dohash [-f] [-h] [-i]

       /usr/sbin/undohash

OPTIONS

       The  following  options	are  available	only for the dohash command: Forces the hashing process to continue even if the command encounters
       errors.	Prints a usage message for the command.  Runs the hashing process interactively.

DESCRIPTION

       The dohash command converts the IMAP configuration directories from the format for older versions of the Cyrus IMAP4 Revision 1	server	to
       the new format for Version 1.6.1 or higher.

       Starting  with Version 1.6.1 of the server, the IMAP user files in the quota and user directories are stored in a through z subdirectories,
       sorted by the first character of each user name. This arrangement reduces the number of entries	in  a  given  directory  and  consequently
       increases  performance  and  scalability.   The	dohash command creates the a through z subdirectories and sorts the existing IMAP files as
       described; the undohash command reverses this process, in case you need to revert to a previous version of the server.

       You can optionally sort the users' directories in the IMAP mail spool in the same manner if you enable  the  hashimapspool  option  in  the
       /etc/imapd.conf file before invoking the dohash command. See imapd.conf(4) for more information.

       Note  that  you must be logged in as the imap user to use the dohash command; otherwise, the newly-created subdirectories will not have the
       proper ownership.

EXAMPLES

       The following example shows output from the dohash command: # /usr/sbin/dohash configuration directory /var/imap...  hashing user directory
       hashing quota directory done hashing

       In  this  example, the configuration directory is /var/imap; therefore, you could check that the dohash command has successfully hashed the
       directories by using the ls command as follows: # ls /var/imap/quota /var/imap/user /var/imap/quota: a  b  c  d	e  f  g  h  i  j  k  l	 m
       n  o  p  q  r  s  t  u	v  w  x  y  z

       /var/imap/user: a  b  c	d  e  f  g  h  i  j  k	l  m  n  o  p  q  r  s  t  u  v  w  x	y  z

       The slash () indicates line continuation.

FILES

       Configuration file for the IMAP server. Specifies the location of the IMAP configuration directory.

SEE ALSO

       Commands: imapd(8)

       Files: imapd.conf(4)

       Network Administration

																	 dohash(8)

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please explain this

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Please can any one explain this ${0##/}

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please explain the below

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can anyone explain this?

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