Hi,
i am new to UNIX. I have couple of basic questions.
1. Is the syntax for BASH shell programming same in the LINUX and SUN SOLARIS operating systems?
2. I have to work on BASH shell programming in SUN SOLARIS operating system. I am going through the documentation from the following... (4 Replies)
Hi,
I have a script called sam.sh which consists of a single echo statement like this
#/usr/bin/ksh
echo "Mani"
I changed the mode for the script by giving chmod a+x sam.sh.
If I want to execute the scrpt by just giving the name at the command line "sam.sh", what should I necessarily do?... (3 Replies)
Can any1 please help me...
i'm really lost in using bash shell scripting...
and i got to hand this up on monday...
please anyone teach me how to do this assignment...
Please use basic things because i just learn the program only... thanks
... (1 Reply)
i need to check if any user has logged-in more than once in different terminals and then print the count of those login, so i wrote this command,
who -H | wc -l
but i feel its not accurate , something is wrong ,i have been trying for a long time by trial n error to solve it, but i need... (2 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Write a bash shell script that takes as an argument a name. Then your script will ask the user for two numbers.... (15 Replies)
Dear Friends,
If i give the command echo $- i am getting output of himBH. Can some body explain what does it means
echo $-
himBH
Thanks in Advance
Rajkumar (2 Replies)
Hello Gurus,
Can anybody please help me to understand as what does this lines(Marked in bold) does:
_TABLESPACE_OFFLINE=`cat ${_tmp_res} | grep -iv "online" | grep -v "^*$" | grep -iv "SQL>"` ------->1
if ;then
_tmp_tablespace_status=1
... (1 Reply)
I'm having trouble trying to create a BASH shell script.
I want the user to input a command "cat file_name.c" and then the shell script will delete all comments "/* */" from file_name.c else exit.
So far I have this:
#!/bin/bash
read "cat file" // User will input command cat... (7 Replies)
I do not know shell scripting. But at work place, I have got an in and out shell scripting task. I just need to understand a very big script. Is there any tool in which I can place the script and it can tell me the meaning of the whole script? (3 Replies)
Discussion started by: lg123
3 Replies
LEARN ABOUT FREEBSD
xstr
XSTR(1) BSD General Commands Manual XSTR(1)NAME
xstr -- extract strings from C programs to implement shared strings
SYNOPSIS
xstr [-cv] [-] [file ...]
DESCRIPTION
The xstr utility maintains a file strings into which strings in component parts of a large program are hashed. These strings are replaced
with references to this common area. This serves to implement shared constant strings, most useful if they are also read-only.
The following options are available:
- Read from the standard input.
-c Extract the strings from the C source file or the standard input (-), replacing string references by expressions of the form
(&xstr[number]) for some number. An appropriate declaration of xstr is prepended to the file. The resulting C text is placed in the
file x.c, to then be compiled. The strings from this file are placed in the strings data base if they are not there already.
Repeated strings and strings which are suffixes of existing strings do not cause changes to the data base.
-v Verbose mode.
After all components of a large program have been compiled a file xs.c declaring the common xstr space can be created by a command of the
form
xstr
The file xs.c should then be compiled and loaded with the rest of the program. If possible, the array can be made read-only (shared) saving
space and swap overhead.
The xstr utility can also be used on a single file. A command
xstr name
creates files x.c and xs.c as before, without using or affecting any strings file in the same directory.
It may be useful to run xstr after the C preprocessor if any macro definitions yield strings or if there is conditional code which contains
strings which may not, in fact, be needed. An appropriate command sequence for running xstr after the C preprocessor is:
cc -E name.c | xstr -c -
cc -c x.c
mv x.o name.o
The xstr utility does not touch the file strings unless new items are added, thus make(1) can avoid remaking xs.o unless truly necessary.
FILES
strings data base of strings
x.c massaged C source
xs.c C source for definition of array xstr
/tmp/xs* temporary file when ``xstr name'' does not touch strings
SEE ALSO mkstr(1)HISTORY
The xstr command appeared in 3.0BSD.
BUGS
If a string is a suffix of another string in the data base, but the shorter string is seen first by xstr both strings will be placed in the
data base, when just placing the longer one there will do.
BSD December 30, 1993 BSD