Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Bash to update file on prefix match in two directories
Top Forums Shell Programming and Scripting Bash to update file on prefix match in two directories Post 303043700 by RudiC on Tuesday 4th of February 2020 09:37:48 AM
Old 02-04-2020
That could even be condensed to



Code:
$ TDIR="path/to/data"
$ awk '
         {NFN = $0 = FILENAME ":" $0
         sub (/\..*$/, "_file.txt", NFN)
         sub (/^[^\.]*\./, "")
         sub (/\.txt:/, "=")
         print > NFN
        }' ${TDIR}/*

Be aware that for larger numbers of output files, you'd need to append to the files, and close them after each append.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to extract paragraphs from file in BASH script followed by prefix ! , !! and !!!

I]hi all i am in confusion since last 2 days :( i posted thraed yesterday and some friends did help but still i couldnt get solution to my problem let it be very clear i have a long log file of alkatel switch and i have to seperate the minor major and critical alarms shown by ! , !! and !!!... (6 Replies)
Discussion started by: nabmufti
6 Replies

2. Shell Programming and Scripting

awk to update field file based on match

If $1 in file1 matches $2 in file2. Then the value in $2 of file2 is updated to $1"."$2 of file2. The awk seems to only match the two files but not update. Thank you :). awk awk 'NR==FNR{A ; next} $1 in A { $2 = a }1' file1 file2 file1 name version NM_000593 5 NM_001257406... (3 Replies)
Discussion started by: cmccabe
3 Replies

3. Shell Programming and Scripting

awk match to update contents of file

I am trying to match $1 in file1 with $2 in file2. If a match is found then $3 and $4 of file2 are copied to file1. Both files are tab-delimeted and I am getting a syntax error and would also like to update file1 in-place without creating a new file, but am not sure how. Thank you :). file1 ... (19 Replies)
Discussion started by: cmccabe
19 Replies

4. Shell Programming and Scripting

Match and store numerical prefix to update files

In the bash below the unique headers of each vcf.gz are stored in a text file with the same name. That is if 16-0000-file.vcf.gz was used the header text file would be 16-0000-file_header.txt. There can be multiple vcf.gz in a directory, usually 3, that I need to fix the header in each file before... (6 Replies)
Discussion started by: cmccabe
6 Replies

5. Shell Programming and Scripting

awk to update file based on partial match in field1 and exact match in field2

I am trying to create a cronjob that will run on startup that will look at a list.txt file to see if there is a later version of a database using database.txt as the source. The matching lines are written to output. $1 in database.txt will be in list.txt as a partial match. $2 of database.txt... (2 Replies)
Discussion started by: cmccabe
2 Replies

6. Shell Programming and Scripting

Perl to update field in file based of match to another file

In the perl below I am trying to set/update the value of $14 (last field) in file2, using the matching NM_ in $12 or $9 in file2 with the NM_ in $2 of file1. The lengths of $9 and $12 can be variable but what is consistent is the start pattern will always be NM_ and the end pattern is always ;... (4 Replies)
Discussion started by: cmccabe
4 Replies

7. Shell Programming and Scripting

awk to update value based on pattern match in another file

In the awk, thanks you @RavinderSingh13, for the help in below, hopefully it is close as I am trying to update the value in $12 of the tab-delimeted file2 with the matching value in $1 of the space delimeted file1. I have added comments for each line as well. Thank you :). awk awk '$12 ==... (10 Replies)
Discussion started by: cmccabe
10 Replies

8. Shell Programming and Scripting

Bash to extract file prefix and from input to use in output

In the bash below which does execute I am trying to extract the contents of ${id} is 1234, as ${id} stores the variable that changes each time. After the path is removed the contents of ${id} are stored in pref, so they can be used in the output. Currently I am not able to extract the 1234 in the... (6 Replies)
Discussion started by: cmccabe
6 Replies

9. Shell Programming and Scripting

awk move select fields to match file prefix in two directories

In the awk below I am trying to use the file1 as a match to file2. In file2 the contents of $5,&6,and $7 (always tab-delimited) and are copied to the output under the header Quality metrics. The below executes but the output is empty. I have added comments to help and show my thinking. Thank you... (0 Replies)
Discussion started by: cmccabe
0 Replies

10. Shell Programming and Scripting

awk to update file based on match in 3 fields

Trying to use awk to store the value of $5 in file1 in array x. That array x is then used to search $4 of file1 to find aa match (I use x to skip the header in file1). Since $4 can have multiple strings in it seperated by a , (comma), I split them and iterate througn each split looking for a match.... (2 Replies)
Discussion started by: cmccabe
2 Replies

LEARN ABOUT XFREE86

update-fonts-alias

update-fonts-alias(8)					      System Manager's Manual					     update-fonts-alias(8)

NAME
       update-fonts-alias - compile fonts.alias files

SYNOPSIS
       update-fonts-alias [OPTION] directory ...

DESCRIPTION
       update-fonts-alias  assembles  a  fonts.alias  file  in	an  X  font  directory	using  one  or more alias files found in a subdirectory of
       /etc/X11/fonts/.  It is typically invoked only from the post-installation and post-removal scripts of a package containing X Window  System
       fonts  that  provide  aliases  for  their XLFD names, but may be invoked at any time to reconstruct fonts.alias files.  For each directory,
       which  is  simply  the  last  component	of  its  path  (such  as   '75dpi'   or   'misc'),   update-fonts-alias   will	 assemble   either
       /usr/lib/X11/fonts/directory/fonts.alias  or  /usr/share/fonts/X11/directory/fonts.alias  from  the  files  found  in /etc/X11/fonts/direc-
       tory/package.alias.

       This enables multiple packages to provide aliases for fonts in the same directory.  No font package actually provides the fonts.alias  file
       in the X font directory itself, so there is no danger of overwriting one package's aliases with those of another.

       For   instance,	 the   two   packages	'xfonts-base'	and   'xfonts-base-transcoded'	 may   both   install  fonts  into  the  directory
       /usr/lib/X11/fonts/misc.     They    each    place    their    fonts.alias    files    in     /etc/X11/fonts/misc/xfonts-base.alias     and
       /etc/X11/fonts/misc/xfonts-base-transcoded.alias  (respectively).   update-fonts-alias  concatenates these two files (as well as any others
       that match /etc/X11/fonts/misc/*.alias) into /usr/lib/X11/fonts/misc/fonts.alias.

       The format of fonts.alias files is described in the mkfontdir(1x) manual page.

       An example of how to use update-fonts-alias in package maintainer scripts is provided in the Debian Policy Manual.

OPTIONS
       -h, --help displays a brief usage message and exits.

OPERANDS
       update-fonts-alias takes one or more X font directory names to operate on as operands.  Only the final path component of the directory name
       should be specified; e.g.,
	      update-fonts-alias 75dpi
       is correct, while 'update-fonts-alias /usr/X11R6/lib/X11/fonts/75dpi' and 'update-fonts-alias /usr/lib/X11/fonts/75dpi' are not.

ENVIRONMENT
       COLUMNS
	      indicates  the width of the terminal device in character cells.  This value is used for formatting diagnostic messages.  If not set,
	      the terminal is queried using stty(1) to determine its width.  If that fails, a value of '80' is assumed.

DIAGNOSTICS
   Errors
       usage error: one or more font directories must be provided
	      update-fonts-alias was invoked without operands.	Supply one or more X font directory names to operate on.

       usage error: unrecognized option
	      update-fonts-alias was invoked with an unrecognized option argument.  Use only the options documented in "OPTIONS", above.

       fatal error: path to X font directory must be used
	      A directory name was supplied that was not an X font directory name.  Supply X font directory names only.

   Warnings
       warning: absolute path directory was provided
	      Usage of absolute paths is deprecated.  Use only the final component of the X font directory name for directory.

       warning: directory does not exist or is not a directory
	      The supplied directory was invalid.  update-fonts-alias skipped it.

EXIT STATUS
       0      update-fonts-alias ran successfully.

       1      update-fonts-alias experienced a fatal error; see the section on diagnostic messages above.

       2      update-fonts-alias was invoked with invalid arguments.

BUGS
       See the Debian Bug Tracking System <http://bugs.debian.org/xfonts-utils>.  If you wish to report a bug in  update-fonts-alias,  please  see
       /usr/share/doc/debian/bug-reporting.txt or the reportbug(1) command.

AUTHOR
       update-fonts-alias was written by Branden Robinson.

SEE ALSO
       mkfontdir(1x)

Debian Project							    2004-11-11						     update-fonts-alias(8)
All times are GMT -4. The time now is 10:51 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy