$? means? Post: 302253935

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

what it means?

I have a command called cd $HDRROOT/release/tools/cfg My query is what it means? tHat is.... $HDRROOT part is not clear. If I put this command it says path not found.... I doubt that $HDRROOT is trying to mean smething I am not clear of. PL help.........

2. UNIX for Dummies Questions & Answers

Can anyone tell me what this means..???

I found a file in my base folder width the name replace.sh and width the text string. sed -i "s/$1/$2/g" `grep -ir $1 ./*|grep -v '.svn'|cut -d: -f1` Wat does it mean and what does it do?

3. Shell Programming and Scripting

$$ means?

hey, what's $$varname in a script? I used to see $varname only. search on google didn't help. thanks.

4. UNIX for Dummies Questions & Answers

Can you tell me what this means?

Can you please tell me what this means? use grep to find from the file myfile.txt all lines containing the sequence tt but not more 2 ts? I have no idea.

5. UNIX for Dummies Questions & Answers

What means %U

I can not find out what the %U means in the following command: ooffice -calc %U

6. Shell Programming and Scripting

!! what is this means

I have a script like select * from table !! what those exclamation marks mean

7. Shell Programming and Scripting

What does . means?

Hi, I have seen in some ksh script, that we are executing shell scripts inside other shell script as . variable.sh What is . here? Their is space between . and variabloe. And why we are not executing it like ./variable.sh? I know that . signifies current directory , but what its...

8. Programming

What does it means?

#define abc '\xE8'

9. UNIX for Beginners Questions & Answers

What is $(NF) means?

HI what does the $(NF) means. here i want to understand the working. what i know is that in awk NF argument will tell number of column in a file i have below file alpha a beta b if i use command cat kv | paste - - | awk '{print $1," "$2 "------>"$(NF)}' i get the o/p as alpha ...

LEARN ABOUT DEBIAN

explain_fopen_or_die

explain_fopen_or_die(3) 				     Library Functions Manual					   explain_fopen_or_die(3)

NAME

       explain_fopen_or_die - open file and report errors

SYNOPSIS

       #include <libexplain/fopen.h>

       FILE *explain_fopen_or_die(const char *pathname, const char *flags);

DESCRIPTION

       The  explain_fopen_or_die()  function  opens the file whose name is the string pointed to by pathname and associates a stream with it.  See
       fopen(3) for more information.

       This is a quick and simple way for programs to constitently report file open errors in a consistent and detailed fahion.

RETURN VALUE

       Upon successful completion explain_fopen_or_die returns a FILE pointer.

       If an error occurs, explain_fopen will be called to explain the error, which will be printed onto stderr, and then the process will  termi-
       nate by calling exit(EXIT_FAILURE).

SEE ALSO

       fopen(3)
	       stream open functions

       explain_fopen(3)
	       explain fopen(3) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 0.52
       Copyright (C) 2008 Peter Miller

AUTHOR

       Written by Peter Miller <pmiller@opensource.org.au>

															   explain_fopen_or_die(3)