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Shell Programming and Scripting
Variable initialization
Post 302906778 by Corona688 on Monday 23rd of June 2014 11:57:35 AM
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1. Programming
Hi
We are using a code generator for initializing structures with the #define macro. Compiling it with the GCC 2.8.1 (with -ansi) it OK. But when we are using the SUN C 5.0 compiler it screams.
Following is a code sample:
#include <stdlib.h>
#include <stdio.h>
typedef struct TEST3 {... (4 Replies)
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As you know, when a user logs in, the shell reads the initialization files in an order something like below...
###################
Bourne Shell
/etc/profile > $HOME/.profile
Bash Shell
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4. Programming
Hi All,
char a="\0";
a) a contains \0
a contains garbage value
b) a contains \
a contains 0
a contains garbage value
Pls, let me know correct result is a or b. I guess a.
Thanks,
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Whenever i execute the below scriptlet with out proper file name it deletes /tmp directory .
I guess this is because value of variable a didnt get initialized and there for rm -rf /tmp/ get executed and entire /tmp directory get deleted.
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6. Programming
Hello everyone,
I have a question, that are the following ways of pointer intialization same ?
ClassA *point;
point = 0;
point = new ClassA;
Thanks a load in advance!!
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7. Shell Programming and Scripting
new to shell scripting.
below line is showing error in script.
${parameter:=word}
in the o/p first it shows the below error.
word: not found.
and then in next line print "word"
----------------
p2: word: not found.
word
---------------------------
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Situation:
I have an array of structures:
struct my_struct_type {
char tags_sn;
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};
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"abcd", 'A', 'E',
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NULL, '\0', '\0'
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Hi ,
I was invoking a sh file using the nohup command. But while invoking, I received a below error.
Error occurred during initialization of VM
Unable to load native library: /u01/libjava.so: cannot open shared object file: No such file or directory
.
Could you please help out.
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LEARN ABOUT OPENSOLARIS
unlink
link(1M) System Administration Commands link(1M) NAME
link, unlink - link and unlink files and directories SYNOPSIS
/usr/sbin/link existing-file new-file /usr/xpg4/bin/link existing-file new-file /usr/sbin/unlink file DESCRIPTION
The link and unlink commands link and unlink files and directories. Only super-users can use these commands on directories. Use link to create a new file that points to an existing file. The existing-file and new-file operands specify the existing file and newly-created files. See OPERANDS. link and unlink directly invoke the link(2) and unlink(2) system calls, performing exactly what they are told to do and abandoning all error checking. This differs from the ln(1) command. See ln(1). While linked files and directories can be removed using unlink, it is safer to use rm(1) and rmdir(1) instead. See rm(1) and rmdir(1). /usr/xpg4/bin/link If the existing file being hard linked is itself a symbolic link, then the newly created file (new-file) will be a hard link to the file referenced by the symbolic link, not to the symbolic link object itself (existing-file). OPERANDS
The following operands are supported: existing-file Specifies the name of the existing file to be linked. file Specifies the name of the file to be unlinked. new-file Specifies the name of newly created (linked) file. ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of link: LANG, LC_ALL, LC_CTYPE, LC_MES- SAGES, and NLSPATH. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ /usr/xpg4/bin/link +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWxcu4 | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
ln(1), rm(1), link(2), unlink(2), attributes(5), environ(5), standards(5) SunOS 5.11 9 Oct 2002 link(1M)