Sponsored Content
Homework and Emergencies Homework & Coursework Questions Shell scripting/working with a file Post 302796219 by vbe on Friday 19th of April 2013 04:23:41 AM
Old 04-19-2013
From my understanding ( non anglophone world...), you are not far from succeeding...
But from a) to b) I dont understand "and exit" at the end of a) but as mentionned I may be wrong in understanding, but in my logic to process an existing file, the prerequisite is to have a backup directory and so after check of existence and creation if non existent you continue (and so no else/elif ...) for you would end with not processing a existing file because you had no backup directory...

c) crazy guys like sysadms like to keep files with their timestamp so we would cp with the according arguments...even more we would use the date as a suffix so the file would not be overwritten by mistake, and it would be more in the "spirit" of having backups in such way you could have in your log file e.g. a long with long listing of the new file created...
d) I see no log file created...
e) what comforts me in my understang here is this task, if you were to copy the file "as it is", here you would only have one file with just the timestamp changing (well ok and size...)
Do you agree?
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

file activity (open/closed) file descriptor info using KORN shell scripting

I am trying to find a way to check the current status of a file. Such as some cron job processes are dependent on the completion of others. if a file is currently being accessed / modified or simply open state I will wait until it is done being processed before attempting the next process on that... (3 Replies)
Discussion started by: Gary Dunn
3 Replies

2. Shell Programming and Scripting

difference between AIX shell scripting and Unix shell scripting.

please give the difference between AIX shell scripting and Unix shell scripting. (2 Replies)
Discussion started by: haroonec
2 Replies

3. Shell Programming and Scripting

file permissions using shell scripting

Hi I am trying to use shell script to display file permissions, and I can do it fine for the current user logged in, but now I want to view all file permissions for the Owner of the file, Group users and everyone, so it will look something like this: -----------------READ WRITE EXECUTE OWNER... (11 Replies)
Discussion started by: barbus
11 Replies

4. Shell Programming and Scripting

Need to create file from shell scripting

Hi, I want to create a file from a shell script. the data for the file will come from variables. that is the file format is like, var1-value var2_value ... that is, var1_value should be placed in first 10 spaces and var2_value should be placed in next 8 columns like that. is there... (4 Replies)
Discussion started by: smr_rashmy
4 Replies

5. Shell Programming and Scripting

file operations in shell scripting

hi All, my query... 1.I Have to search for the files in the root directory. 2.i have to search for a pattern in all the files in the root directory and then replace them with a new pattern. 3.Rename the file Explanation: if ABC is the root folder and has 3 subfolders and there are 15... (9 Replies)
Discussion started by: adityamahi
9 Replies

6. Shell Programming and Scripting

Shell scripting - need to arrange the columns from multiple file into a single file

Hi friends please help me on below, i have 5 files like below file1 is x 10 y 20 z 15 file2 is x 100 z 245 file3 is y 78 z 23 file4 is x 100 (3 Replies)
Discussion started by: siva kumar
3 Replies

7. UNIX for Dummies Questions & Answers

Shell script to read lines in a text file and filter user data Shell Programming and Scripting

sxsaaas (3 Replies)
Discussion started by: VikrantD
3 Replies

8. Shell Programming and Scripting

Shell scripting for file manupilations

Hi linux users, I have a file with following format. { Name shiva; location Delhi; travelID IDNumber; } 4 ( (0.1 0.2 0.3) 1234 (1.1 1.2 1.3) 12345 (2.1 2.2 2.3) 12354 (3.1 3.2 3.3) 123667 )now i wanted to write this data in separate files as... (2 Replies)
Discussion started by: linuxUser_
2 Replies

9. Shell Programming and Scripting

Read csv file, convert the data and make one text file in UNIX shell scripting

I have input data looks like this which is a part of a csv file 7,1265,76548,"0102:04" 8,1266,76545,"0112:04" I need to make the output data should look like this and the output data will be part of text file: 7|1265000 |7654899 |A| 8|12660000 |76545999 |B| The logic behind the... (6 Replies)
Discussion started by: RJG
6 Replies

10. Shell Programming and Scripting

Typeset is not working in Linux korn shell scripting

Hi All, Kindly help on the below issue ASAP. Its very urgent. I have script in which we have below two lines for code and it is not working. Please help. files_to_process=" abc_*.log def_*.log ghi_*.log " typeset -A dir_list ${files_to_process} the script is failing in Linux... (3 Replies)
Discussion started by: tvbhkishore
3 Replies
std::hash< _Tp >(3cxx)													    std::hash< _Tp >(3cxx)

NAME
std::hash< _Tp > - SYNOPSIS
Inherits std::__hash_base< _Result, _Arg >. Public Types typedef _Arg argument_type typedef _Result result_type Public Member Functions size_t operator() (_Tp __val) const template<> size_t operator() (bool __val) const template<> size_t operator() (char __val) const template<> size_t operator() (signed char __val) const template<> size_t operator() (unsigned char __val) const template<> size_t operator() (wchar_t __val) const template<> size_t operator() (char16_t __val) const template<> size_t operator() (char32_t __val) const template<> size_t operator() (short __val) const template<> size_t operator() (int __val) const template<> size_t operator() (long __val) const template<> size_t operator() (long long __val) const template<> size_t operator() (unsigned short __val) const template<> size_t operator() (unsigned int __val) const template<> size_t operator() (unsigned long __val) const template<> size_t operator() (unsigned long long __val) const template<> size_t operator() (float __val) const template<> size_t operator() (double __val) const template<> size_t operator() (long double __val) const Detailed Description template<typename _Tp>struct std::hash< _Tp > Primary class template hash. Definition at line 58 of file functional_hash.h. Author Generated automatically by Doxygen for libstdc++ from the source code. libstdc++ Tue Nov 27 2012 std::hash< _Tp >(3cxx)
All times are GMT -4. The time now is 02:32 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy