[Solved] Reverse the order of a list of file names (but not sort them alphabetically or numerically) Post: 302888125

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

sort a file in reverse order

I a file with log entries... I want to sort it so that the last line in the file is first and the first line is last.. eg. Sample file 1 h a f 8 6 After sort should look like 6 8 f a h 1

2. UNIX for Dummies Questions & Answers

Sort file alphabetically AND numerically

Hi all. I have 2 files like this: f1 A 10 B 80 C 9 f2 A 11 B 700 C 10 What I want is the concatenation of the two files sorted by name (alphabetically) and size (numerically), so the result should be like this: F3 (cat f1 f2 sorted) A 10 A 11 B 80 B 700

3. UNIX for Dummies Questions & Answers

sort -reverse order

I need to sort the particular column only in reverse order how i can give it.. if i give the -r option the whole file is getting sorted in reverse order. 1st 2nd col 3rd C col 4th col 5th col ------------------------------------------- C...

4. Shell Programming and Scripting

Conditional reverse of certain file line order

Hi I am brand new to programming, I dont know how to go about this task, or what language is best for this...If there is an easy solution in different languages, I would love to see them. I want to learn about the steps to take on this, so Please put in comments where code is used. I believe in...

5. UNIX for Dummies Questions & Answers

How can I list the file under a directory both in alphabetical and in reverse alphabetical order?

How can I list the file under current directory both in alphabetical and in reverse alphabetical order?

6. Shell Programming and Scripting

Numerically sort problem for a long list of file name

I got a long list of file name. My input: data_1.txt data_2.txt data_3.txt data_10.txt data_21.txt data_12.txt data_4.txt My desired output: data_1.txt data_2.txt data_3.txt data_4.txt data_10.txt data_12.txt data_21.txt Does anybody got idea how to archive it?

7. Shell Programming and Scripting

Sort alphabetically, then numerically

Greetings - I'm not necessarily new to bash scripting - I'm probably between beginner and intermediate, but I have something that I just cannot figure out after many attempts to find it. I have a file that is merely a list of many files, with their respective paths, and a branch path (ClearCase)...

8. Shell Programming and Scripting

Sort names in a list by order of importance

Hi, I have multiple list which is arranged by order of importance. I need to do sorting on these lists based on the last name of the user(initial), if user name does not have initial then first name is initial . Important thing is that the last name in the list is important. If there is two or...

9. Shell Programming and Scripting

Using awk to sort a file alphabetically

I have a problem with my homework I need to create a shell script using #!bin/awk -f the script will output the file in an alphabetical order only words and after the word is : after that a space then , then it will be numbered each character by which line its been for example CB 92A A...

10. Shell Programming and Scripting

List numerically in ascending order

Hello, I am running ubuntu 16.04 and trying to list all files inside a directory, I need to sort them in ascending order. While surfing on the site, I found an old thread but somehow it did not work. Link Ascending order with sort -nk2 myfile.txt command gives below output: file...

LEARN ABOUT DEBIAN

keyhead

keyhead(1) General Commands Manual keyhead(1)

Name
keyhead - Change FITS or IRAF header keyword names

Synopsis
keyhead [-hknv] <FITS or IRAF file> kw1=kw1a kw2=kwd2a ... kwn=kwdna

Description
Change the names of keywords in FITS or IRAF image headers. Each current image keyword whose entry is to be modified should be followed by
an equal sign and a second keyword, with no intervening spaces. If the -r option is used, the value of the second keyword is transfered to
that of the first. Otherwise, the name of the first keyword is changed to the second keyword. To change keywords in a list of files, sub-
stitute @<listfile> for the file names on the command line. To change a lot of keywords, put them, one pair separated by an = sign with no
spaces per line, in a file and substitute @<keylistfile> on the command line. If two @ commands are present, the program will figure out
which contains file names and which contains keywords. Lines in a keyword list file which do not contain an = are ignored.

Options
-h Write HISTORY line into output header with sethead version, current date and time, and names of keywords set.

-k Write KEYHEAD keyword into output header with the keyhead version, current date and time, and names of keywords whose names are
changed. If a KEYHEAD keyword already exists, move the old value to a HISTORY line before writing the new value

-n Write a new file with an added "e" before the extension.

-r letter
Replace value of 1st keyword with value of 2nd keyword instead of changing the name of the 1st keyword to the 2nd keyword. The 2nd
keyword remains in the header. If the 1st keyword does not exist in the header, it is created.

-v Print confirmations of each keyword change.

Web Page
http://tdc-www.harvard.edu/software/wcstools/keyhead.html

Author
Doug Mink, SAO (dmink@cfa.harvard.edu)

6 July 2001 WCSTools keyhead(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

sort a file in reverse order

Discussion started by: frustrated1

2. UNIX for Dummies Questions & Answers

Sort file alphabetically AND numerically

Discussion started by: mrodrig

3. UNIX for Dummies Questions & Answers

sort -reverse order

Discussion started by: sivakumar.rj

4. Shell Programming and Scripting

Conditional reverse of certain file line order

Discussion started by: perlrookie