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Top Forums Shell Programming and Scripting replace a string with content from another file Post 302088707 by ghostdog74 on Thursday 14th of September 2006 12:46:24 AM
Old 09-14-2006
while a shell solution is on the way , here is an alternative, in Python

Code:
>>> import fileinput
>>> Bcontents = open("fileB").read() #fileB contents stored as string
>>> for lines in fileinput.FileInput("fileA",inplace=1): #inplace editing of fileA
... 	lines = lines.strip() #get rid of newlines
... 	if lines.startswith("xxxx"):
... 		lines = Bcontents
... 	print lines

In fileA:

bor bor bor
something something
something
bib bib bi

Last edited by ghostdog74; 09-14-2006 at 02:03 AM..
 

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uniq(1) 						      General Commands Manual							   uniq(1)

Name
       uniq - report repeated lines in a file

Syntax
       uniq [-udc[+n][-n]] [input[output]]

Description
       The  command  reads  the  input	file comparing adjacent lines.	In the normal case, the second and succeeding copies of repeated lines are
       removed; the remainder is written on the output file.  Note that repeated lines must be adjacent in order to be found.  For further  infor-
       mation, see

Options
       The n arguments specify skipping an initial portion of each line in the comparison:

       -n Skips specified number of fields.  A field is defined as a string of non-space, non-tab characters separated by tabs and spaces from its
	  neighbors.

       +n Skips specified number of characters in addition to fields.  Fields are skipped before characters.

       -c Displays number of repetitions, if any, for each line.

       -d Displays only lines that were repeated.

       -u Displays only unique (nonrepeated) lines.

       If the -u flag is used, just the lines that are not repeated in the original file are output.  The -d option specifies  that  one  copy	of
       just the repeated lines is to be written.  The normal mode output is the union of the -u and -d mode outputs.

       The  -c option supersedes -u and -d and generates an output report in default style but with each line preceded by a count of the number of
       times it occurred.

See Also
       comm(1), sort(1)

																	   uniq(1)
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