As noted above, the backslash just lets you wrap a long command line.
You have to be sure that the backslash is the final character in that line -- even a single blank space will screw it up -- that set of commands will then be perceived as two separate lines.
The && operator is used to execute additional commands after other commands, but only if the earlier one(s) are successful. The || (double-pipe) operator is the opposite -- the following only executes if the first one fails.
Example:
Code:
thing1 && thing2 && thing3 && thing4
If thing1 works, then thing2 will execute. If thing2 works, thing3 will execute, and so on. But if any one of them fails, that's the end of the road.
Code:
thing1 || otherthing
In this case, thing1 will be executed. If it works, that's the end of the road. If it fails, then otherthing will be executed.
hi all,
To summerize disk usage in human readable format we have "du -h" in linux,which gives the
disk usage in MBs.
do we have something similar in HP-UX ?
thanks,
amit (4 Replies)
Hi all
I have this output in a variable called ...yes $OUTPUT :-) original...huh
these are tablespaces in an Oracle db
how do I get this into another variable in two columns
so I can do a check on the numbers (space left)
SYSTEM 290; USERS 19; UNDOTBS1 1863; DATA 5982; SYSTEM 290; USERS... (7 Replies)
i am newbie my querry is
if i am having a gcc compiler which has been a native build with a particular version of binutilities..then when i will use this compiler to build other packages ..then in the linking stage which linker it will use if i do not set my path.
...will it uses by default... (0 Replies)
hello ,
i want to know about a situation
suppose i want to ftp to a system
i try to login through root login
root password ...will it fail
i am getting ftp:500 command not recognized in a similar situation as soon as i am entering my email... (0 Replies)
what is the real use of xargs command ..?
ls -tr |xargs -I{} rm -f {}
....can any one tell me what is the significance of {} curly brackets in this command (1 Reply)
from aix server, is it a way to extract data from windows LDAP. i will need to extract only firstname, lastname and login either xml or csv format ?
i can use ldifde command to extract above information, but i have to do it from windows server. (1 Reply)
$ A=/t1/bin/f410pdb oIFS=$IFS IFS=/
$ set -- $A
$ IFS=$oIFS
$ echo $2
t1
$ echo $3
bin
$ echo $4
f410pdb
can any one please explain me what is done with IFS and how it is working internally ...i am interested to know in depth (2 Replies)
In a solaris 8 machine the native binaries
are mainly kept under /bin and /usr/bin
but some binaries i found in /usr/xpg4/bin
please can anyone tell me in a little detail what is the reason to keep the binaries in different locations
i mean /bin /usr/bin /usr/xpg4/bin
... (1 Reply)
Hi, I'm trying to run the module load command in a Makefile and i'm getting the following error:
make: module: command not found
Why is this? Is there any way to run this command in a Makefile?
NOTE: command - module load msjava/sunjdk/1.5.0 works fine outside of the Makefile (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:
Basically, the prompt is make a makefile with various sub makefiles in their respective subdirectories. All code... (1 Reply)
Discussion started by: Tatl
1 Replies
LEARN ABOUT SUSE
gccmakedep
gccmakedep(1) General Commands Manual gccmakedep(1)NAME
gccmakedep - create dependencies in makefiles using 'gcc -M'
SYNOPSIS
gccmakedep [ -sseparator ] [ -fmakefile ] [ -a ] [ -- options -- ] sourcefile ...
DESCRIPTION
The gccmakedep program calls 'gcc -M' to output makefile rules describing the dependencies of each sourcefile, so that make(1) knows which
object files must be recompiled when a dependency has changed.
By default, gccmakedep places its output in the file named makefile if it exists, otherwise Makefile. An alternate makefile may be speci-
fied with the -f option. It first searches the makefile for a line beginning with
# DO NOT DELETE
or one provided with the -s option, as a delimiter for the dependency output. If it finds it, it will delete everything following this up
to the end of the makefile and put the output after this line. If it doesn't find it, the program will append the string to the makefile
and place the output after that.
EXAMPLE
Normally, gccmakedep will be used in a makefile target so that typing 'make depend' will bring the dependencies up to date for the make-
file. For example,
SRCS = file1.c file2.c ...
CFLAGS = -O -DHACK -I../foobar -xyz
depend:
gccmakedep -- $(CFLAGS) -- $(SRCS)
OPTIONS
The program will ignore any option that it does not understand, so you may use the same arguments that you would for gcc(1), including -D
and -U options to define and undefine symbols and -I to set the include path.
-a Append the dependencies to the file instead of replacing existing dependencies.
-fmakefile
Filename. This allows you to specify an alternate makefile in which gccmakedep can place its output. Specifying "-" as the file
name (that is, -f-) sends the output to standard output instead of modifying an existing file.
-sstring
Starting string delimiter. This option permits you to specify a different string for gccmakedep to look for in the makefile. The
default is "# DO NOT DELETE".
-- options --
If gccmakedep encounters a double hyphen (--) in the argument list, then any unrecognized arguments following it will be silently
ignored. A second double hyphen terminates this special treatment. In this way, gccmakedep can be made to safely ignore esoteric
compiler arguments that might normally be found in a CFLAGS make macro (see the EXAMPLE section above). -D, -I, and -U options
appearing between the pair of double hyphens are still processed normally.
SEE ALSO gcc(1), make(1), makedepend(1).
AUTHOR
The version of the gccmakedep included in this X.Org Foundation release was originally written by the XFree86 Project based on code sup-
plied by Hongjiu Lu.
Colin Watson wrote this manual page, originally for the Debian Project, based partly on the manual page for makedepend(1).
X Version 11 gccmakedep 1.0.2 gccmakedep(1)