I am using makefile to complile all C Programming files. But certain files are not getting compiled and hence its object file is not getting generated. This is happening due to files haven't been modified for a long time. It seems that compiler knows that its object file is there hence no need to complie it actually it is not.
View 14 RepliesI got a directory with files in it like: 2006-07-01.foo2007-08-04.foo I need to update the timestamps on these files using "touch -t 200607010000 2006-07-01.foo" on each file in the directory so I came up with the following one liner:
for i in `ls -1`; do touch -t `ls -1 | sed -n 's%([0-9]{4})-([0-9]{2})-([0-9]{2})(.*)%1230000%p'` $i; done
My goal was to use sed and get the timestamp for touch and then loop through each file and touch with the timestamp.However the script, not giving me the results I intended. Can anyone chime in on what I am doing wrong?I have been banging away at this for a couple of hours now and am clueless on what it could be. I also tried another variant such as:
for z in $(ls -1 *.foo); do echo $z $(for i in `ls -1 *.foo | sed 's%([0-9]{4})-([0-9]{2})-([0-9]{2})(.*)%1230000%p'`; do echo "$i"; done); done
I have a directory listing with many subdirectories having many files. I want to recursively search for the oldest 5 files starting from the base directory and not 5 from each subdirectory. I am writing a shell script which sorts them using ls -lRtur|egrep "txt|jpg" > /tmp/file1 Now from this /tmp/file1 file I want to sort the files same as what the ls -ltr command does that is oldest file time to newest file time first. How do I sort based on Linux time stamp? The files itself also have Linux timestamps embedded in them So I can sort based after extracting them as well if it is easier.
My /tmp/file1 has entries like below.
-rw-rw-r--. 1 usr1 usr1 705 2010-01-22 17:25 sample20100603173659.jpg
I want to get the 5 oldest files and then delete them.
I am trying to compile a program with mpicc. To compile I use:
CC=/usr/bin/mpicc ./configure
However mpicc's default C compiler is gcc 4.4.2 and I need to use 4.0.0 which I have installed in another directory. I do not (nor can get) root privileges so I cannot edit mpicc's default compiler. Is there an option I can set while configuring?
compiling and linking using gcc: What does a file name with a suffix '.a' represent? If I have multiple .c and .h files, how can I link them together? How can I create the .a file?
View 6 Replies View RelatedCode:
anisha@linux-uitj:~/junk> ls -R
.:
include src
./include:
template0.h template0.h~ template0.h.gch
[code]....
I have 3 c++ files, classdef.h (header file with class definition), methods.cpp (class methods) and program.cpp - the program itself. Both .cpp files have
Code:
#include "classdef.h"
in files. How I can link the files together and compile them in one executable program? I am using Geany IDE for coding.
I want to access the timestamp field of the packet being sent or received. I am not getting clear idea as to which ioctl I should use, and how it should be used in the program. Anyone explain rough flow of the program for accessing the timestamp.
View 5 Replies View RelatedI've implemented a python script in conky that shows my stock portfolio.But, in the output of last updated timestamp, I get a time several hours in the past. The url for fetching stock data is: [URL]This is a norwegian stock, and I also live in norway. So the timestamp is not translated to the stock market of where it came. I can't find any 'localizing' stuff in the url either.Now my question is this: The script puts the time into a variable, the varable now contains ex 11:23 Is there any way I can add 6 hours or so to this variable
View 3 Replies View RelatedI'm writing a bash script to auto run on boot in Tinycore.
This is a watered down version.
Code:
I need it to either not add the time stamp if the awk finds a duplicate or write over the time with the new time if awk finds a duplicate.
BTW this is all pretty much cut-and-paste scripting so please feel free to comment if you know a more elegant way.
I have a computer with 4 RS232 com-ports (MSI MS-9A19).
To each com-port, I have instruments attached that transmit data like this:
982000001088420<CR><LF>
982000001088421<CR><LF>
[code]....
compiler problem (f77) which arises when I try to execute a bash script ("compile" see [1] below) running under Cygwin on WinXP. The script finds the correct file(s) but the compiler does not recognize them as fortran source files. If the script is executed sequentially from the command line then there is no problem.
The directory structure of flh971da contains two subdirectories flh971da/scripts and flh971da/source. The compile script [1] is shown (in part) below. The script changes directory to flh971da/source, and compiles source from subdirectories flh971da/source/n where n=a,b,c etc and places the object files in flh971da/source/nobj n=a,b,c... etc. The response to flh971da/scripts/compile script is given below [2]. It is clear that the compiler (f77) locates the correct source file [4] (flh971da/source/a/a00aaft.f) but does not recognize it as a fortran source file. All relevant files have been processed with d2u. I suspect the problem is with the script, but I have no idea how to fix it.
[Code]....
Where is the best path to install all files of package when compiling?
For example - I want to install ProFTPd, so there's an option
--prefix=/usr/local/proftpd
, which means, that all files after compilation (including binary and configuration files) will be stored here. As you know, all packages, which are installed via package system (like zypper on SuSE or apt on Ubuntu) usually stores its configuration files in /etc/ and binary files in /sbin/ and also stores a link in my $PATH, so i can run in just by typing proftpd (without /sbin).
The huge advantage of packages installed via package system, i think, is easy uninstall process. I'd like to be able to uninstall compiled packages also easy.
I think i could be able to create some batch file, which I'll be able to use like this:
uninstall --package=proftpd
And my script will find all proftpd files in usuall paths (/etc, /sbin) and remove it using rm.
Is there any best practices, where to store all these files, or are there any (dis)advantages of my first example (--prefix=/usr/local/proftpd)?
I really don't think, that it's nice to have 2 paths with configuration files and binary files, but maybe I'm misunderstanding the basic principals of Linux... :-)
I'm looking for a method for modifying some jpg photo files last modification date with the corresponding timestamp creation date of each file.The reason is that shotwell import pictures in folders according to last modification date which is stupid on my opinion.
View 2 Replies View RelatedI'm using Linux Mint 8 64bit with Google Chrome Unstable (same problem with beta).When a video is playing, the time elapsed and total time stay on the screen:Is there a way to make this disappear
View 1 Replies View RelatedCannot sudo and gets this message: timestamp too far in the future. I don't have gui interface.
View 1 Replies View RelatedHow do I compare the timestamp of two files? I tried this but it doesn't work:
file1time=`stat -c %Y fil1.txt`
file2time=`stat -c %Y file2.txt`
[code]....
I printed both the time stamps, in order and it gives me
1273143480
1254144394
./script.sh: line 13: [1273143480: command not found
So basically if comparision is not working, I guess. Or if there is any other nice way than what I am doing, please let me know.
Edit: There was no space in between if, so changing it to this works:
if [ $file1time -gt $file2time ]
I want to egrep or a grep in the squid log file .. from this time 1287483952.440 to '1287483452.440, how can I do it.
View 3 Replies View RelatedI noticed that file /etc/shadow changed it's timestamp.Why it is changed? Is it "normal"?
View 4 Replies View RelatedI am looking for a way to print the timestamp of a directory using find command. I can do that for a file, but for a directory, it is printing the contents of the directory as well. Lets say there is a directory called doc, and there are more than one occurrences of that directory.
find . -name "doc" -type d -exec ls -l {} ;
This is printing the contents of all the files under doc directory as well.
I installed Fedora on my machine. I'm very new at Linux but would like to start coding in C++. I would like to know the steps to write and compile a Hello World program using C++ in Linux. (I've been a Microsoft person all my life).
View 4 Replies View RelatedI am trying to learn C Programing and I'm having trouble on the output of my script. my script should count the characters in input but it doesn't give me any numbers..
here's my program code:
Code:
#include <stdio.h>
main()
{
double nc;
[code]....
I am just trying to print the timestamp. which is not working.
#!/bin/bash
TSTAMP= date '+%d.%m.%y-%H:%M:%S'
echo "${TSTAMP}"
It is not displaying anything. What is wrong with the above commands.
compile package C++ with GNU compiler under Linux, I can share my program's
View 3 Replies View Relatedfor some reason I don't know how to install *.tar.gz files, I ommitted some of my files listed in the code after the ls command for simplicity
[Code]....
I am using a arm compiler to build my program but getting following compiler error at the end -
init.c.text+0x2c): undefined reference to '__libc_csu_fini'
init.c.text+0x34): undefined reference to '__libc_csu_init'
I am using the C++ compiler G++ to compile my programs on Linux Mint 8 - Gnome.
I recently installed QT and when I tried to compile a simple "Hello World!" program it gave me this error:
Quote:
This is the code in HelloWorldQt.cpp:
Code:
I have tried using GTK instead but I get a similar error.
I'm reading about GNU CPP(GNU C preprocessor). In the CPP manual -> 1.1 Character sets:
Code:
After preprocessing is complete, string and character constants are converted again, into the execution character set. This character set is under control of the user; the default is UTF-8, matching the source character set. I think "under control of the user" means to use the option -fexec-charset=, right? And in the above part, it says pretty clear: "After preprocessing is complete", so the job -- "string and character constants are converted again, into the execution character set" -- should be done by the C compiler(compilation proper), not GNU CPP. Then the option -fexec-charset= should be an option controlling the C compiler, not the preprocessor. But in the GCC manual, this option is listed in the "3.11 Options Controlling the Preprocessor". I don't understand this, If this option is an option controlling the preprocessor, it conflicts with the CPP manual. How to understand this?
I have a large existing codebase that all compiles under Ubuntu 8.04 with g++ using Scons. I've been given the task of getting it to compile for Arm9 running uclinux. I have a arm-elf-g++ compiler that I need to use instead of the gcc version. I ended up borking my /usr/lib/scons/SCons/Tool/g++.py file to use arm-elf-g++ instead of g++, but I know that this is not correct, as I have to go edit that file every time I change compilers.
These are the 2 lines I switch out:
Code:
compilers = ['arm-elf-g++']
#compilers = ['g++']
I simply can not find anywhere in the scons documentation that indicates how to tell it to use a different compiler. It seems that it would go under "Environment" but beyond that I'm lost. The CPPPATH variable seems like it only tells scons where to find #include files. I suppose I could rename arm-elf-g++ to g++ and just set my path to find that one first, but that seems like a bit of a hack as well. It would also break other things on my machine.
I'm trying to figure out how pthreads are mapped from the compiler to the Linux kernel. The pthread prototypes are found in a compiler header file (pthread.h), yet the kernel would be responsible for scheduling the threads. So, how does the compiler resolve the pthread symbols at compile time?
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