I would like to rename Multiple files in a Unix Directory using Ksh Command.
Eg ATT8-2011-10-01 00:00:00-MSA-IMM-SINGLE_AND_FAMILY_COVERAGE-DED-$2000-X114817.PDF
needs to be renamed as
ATT8-2011-10-01-MSA-IMM-SINGLE_AND_FAMILY_COVERAGE-DED-$2000-X114817.PDF
Basically the time portion which is always 00:00:00 needs to be stripped off and the space between the date and the next hyphen symbol (-) needs to be compressed.
Any ideas as to how to this ? Assuming they are about 3000 files in the directory.
On some systems, there is a Perl-based rename command (sometimes called prename) and you'd write:
rename 's/ 00:00:00//' *" 00:00:00-"*
If you don't have that, find it. If you can't find it, then you have more work to do. However, the work is searching on SO. For example, Underscore in rename command (Perl and Unix shell) has a link to one version of the prename (Perl rename) command.
Related
I made this script below to make a backup of some files. It works fine, but i wanted make a list for the files that need be skipped from compressing.
For example:
my list.txt has all the files that will be compressed. But i wanted to make another list for the files that need be skipped, like exclusion_list.txt. Actually i put all files that i want be ignored from compressing into the command line, as shown below -x*\Test1 -x*\Test2.
But i really wanted to make a exclusion list for not keep changing the command line everytime i need to exclude a file or folder.
How i can do it?
"%winrar%\winrar.exe" a -x*\Test1 -x*\Test2 -ibck -ep1 -ilog%userprofile%\Desktop\log.log "compressed %date:/=.%.rar" "#list.txt"
From the documentation: the exclusion option -x also supports a list file when it is preceded by #:
"%winrar%\winrar.exe" a -x#exclusion_list.txt -ibck -ep1 -ilog%userprofile%\Desktop\log.log "compressed %date:/=.%.rar" "#list.txt"
with the file exclusion_list.txt containing:
*\Test1
*\Test2
By the way, there is even a console version of WinRAR, called rar.exe, which is a non-GUI version.
Say I made and compiled a small program in C to count the bytes of a file, called filebyte. To run it I would use ./filebyte
Now I want to make it universal on bash, like for example to run a php file, I would use bash command php file.php, same way I would like to run my program, filebyte filename.
How do I do this?
Thanks!
I often create a bin/ directory in my home directory, for small custom applications.
You then need to add that directory to your PATH, which is a list of colon-separated paths that your shell searches for executables when you type a name on thr command line.
This is usually accomplished by putting this in your ~/.bashrc file:
PATH="$PATH:~/bin"
Check the environment variable PATH and put the executable in one of the directories listed. You can also put it in a custom directory and then append it to PATH. You can check it by executing printenv PATH
If you want it for your current active shell alone, do
export PATH=$PATH:</path/to/file>
For permanently making the file available add the above line to ~/.bashrc
Why add it in PATH variable, man bash says why,
PATH The search path for commands. It is a colon-separated list of
directories in which the shell looks for commands (see COMMAND
EXECUTION below). A zero-length (null) directory name in the
value of PATH indicates the current directory. A null directory
name may appear as two adjacent colons, or as an initial or
trailing colon. The default path is system-dependent, and is set
by the administrator who installs bash. A common value is
''/usr/gnu/bin:/usr/local/bin:/usr/ucb:/bin:/usr/bin''.
Description:
I am searching a very large server for files that is on a different server. right now I open command prompt and type
DIR [FILE NAME] /S/4
This returns the server location of the file with some other stuff that is not really needed.
Question:
I have a lot of files to search and one by one input into the above command could take forever. Is there a way I could input all of the names of all the files and only search once and the search results would only need to show file name and location?
First, I hope you don't mean DOS, but rather Windows cmd or batch.
You can certainly write a script that will run your DIR command once per file being sought.
But what you most likely want instead is to search once and print the path of each file found. For this you can use PowerShell's FindChildItem or the improved one posted here: http://windows-powershell-scripts.blogspot.in/2009/08/unix-linux-find-equivalent-in.html
It will be something like:
Find-ChildItem -Name "firstfile.txt|secondfile.txt|..."
Another approach is to install msys or cygwin or another Linux tools environment for Windows and use the Linux find command.
I want to exclude some directories from an archive using the PASE tar command on an IBMi but the [-X Exclude File] option doesn't seems to work for me.
I tried using an exclude file that just contained a file name (/home/JSMITH/data/sub2/file2.txt) and then one that just contained a pattern (*.txt), and neither archive operation omitted anything.
Given the following directory structure:
/home/JSMITH/data
/home/JSMITH/data/sub1
/home/JSMITH/data/sub1/file1.txt
/home/JSMITH/data/sub2
/home/JSMITH/data/sub2/file2.txt
/home/JSMITH/data/sub3
/home/JSMITH/data/sub3/file3.txt
and the following command:
/qopensys/usr/bin/tar -cvf /home/JSMITH/test.tar -X /home/JSMITH/excludes.txt /home/JSMITH/data
The entire /home/JSMITH/data structure gets included in the resulting archive.
I have tried using the /home/JSMITH/excludes.txt file with either of these contents:
/home/JSMITH/data/sub2/file2.txt
or
*.txt
How does one exclude files/directories/patterns from the IBMi PASE tar command?
You need the full path in the exclude file.
I created mine via ls /home/JSMITH/data/*.txt > /home/JSMITH/excludes.txt
If you're doing it by hand, make certain you haven't got any trailing whitespace.
Also, I used Notepad++ when I created mine by hand. I found that the green screen edtf created an EBCDIC file with CRLF in it, and that didn't exclude for me.
IBM i 7.1
I have a folder with a few files in it; I like to keep my folder clean of any stray files that can end up in it. Such stray files may include automatically generated backup files or log files, but could be a simple as someone accidentally saving to the wrong folder (my folder).
Rather then have to pick through all this all the time I would like to know if I can create a batch file that only keeps a number of specified files (by name and location) but deletes anything not on the "list".
[edit] Sorry when I first saw the question I read bash instead of batch. I don't delete the not so useful answer since as was pointed out in the comments it could be done with cygwin.
You can list the files, exclude the one you want to keep with grep and the submit them to rm.
If all the files are in one directory:
ls | grep -v -f ~/.list_of_files_to_exclude | xargs rm
or in a directory tree
find . | grep -v -f ~/.list_of_files_to_exclude | xargs rm
where ~/.list_of_files_to_exclude is a file with the list of patterns to exclude (one per line)
Before testing it make a backup copy and substitute rm with echo to see if the output is really what you want.
White lists for file survival is an incredibly dangerous concept. I would strongly suggest rethinking that.
If you must do it, might I suggest that you actually implement it thus:
Move ALL files to a backup area (one created per run such as a directory containing the current date and time).
Use your white list to copy back files that you wanted to keep, such as with copy c:\backups\2011_04_07_11_52_04\*.cpp c:\original_dir).
That way, you keep all the non-white-listed files in case you screw up (and you will at some point, trust me) and you don't have to worry about negative logic in your batch file (remove all files that _aren't of all these types), instead using the simpler option (move back every file that is of each type).