can anyone explain this? Post: 302222735

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1. Shell Programming and Scripting

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...

2. Shell Programming and Scripting

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

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

3. Shell Programming and Scripting

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...

4. UNIX for Dummies Questions & Answers

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

5. Shell Programming and Scripting

can any one explain this example

hi all i have an example i want one help me to understand cause i tried to test it but almost fail and i don't know how can i solve this problem " the main idea to read from two files and replace something from one to another " but i don't understand why it fail all time $ cat main.txt...

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Could anyone help explain this?

1. The problem statement, all variables and given/known data: I have a retake assignment to complete for my computer networks and OS class. This isn't really my area, had I known last year I could have swapped it for a different module I would have done so. I'm determined to get through it...

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Explain $# please

I'm trying to follow a script and I see it begins with this: if ; then if ; then print "blah $0 blah blah " exit fi fi What does $# mean? I found out that $1 refers to the shell environment and the last argument that was entered or passed in the previous command. I couldn't find $#...

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anyone can explain this?

why the case 2 will happen ? , ' should stop the history substitution ,shouldn't it? case 1 # echo "123"|sed '/123/!d' 123 case 2 # echo "123 > 456 > 1 > "|sed '/123/!d' -bash: !d': event not found case 3 # echo "123 > 456 > 12 > "|sed '/123/'\!d 123 # bash --version

9. Shell Programming and Scripting

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 HPUX

sysdef

sysdef(1M)																sysdef(1M)

NAME

       sysdef - display system definition

SYNOPSIS

       [kernel [master]]

DESCRIPTION

       Note: will not be supported in future releases of HP-UX (refer to section below).  So users are advised to use the kctune(1M) utility which
       provides additional information on kernel tunable parameters.

       The command analyzes the currently running system and reports on its tunable configuration parameters.  kernel and master are not used, but
       can be specified for standards compliance.

       For each configuration parameter, the following information is printed:

	      The name and description of the parameter.

	      The current value of the parameter.

	      The value of the parameter at boot time, if different from the
			     current value.

	      The minimum allowed value of the parameter, if any.

	      The maximum allowed value of the parameter, if any.

	      Where appropriate, the units by which the parameter is measured.

	      Flags that further describe the parameter.  The following flag
			     is defined:

				  Parameter can be modified without rebooting.

WARNINGS

       Users  of must not rely on the exact field widths and spacing of its output, as these will vary depending on the system, the release of HP-
       UX, and the data to be displayed.

       is provided for compatibility purposes only and is no longer maintained since being marked for obsolescence in a future HP-UX release.  The
       output from is known to be incorrect when reporting values for some tunable parameters such as and

SEE ALSO

       kctune(1M).

								  TO BE OBSOLETED							sysdef(1M)

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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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Please explain this

Discussion started by: appsdba.nitin