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Full Discussion: Replace string2 by string3 where string1 is found in line
Top Forums Shell Programming and Scripting Replace string2 by string3 where string1 is found in line Post 303022147 by baris35 on Sunday 26th of August 2018 09:12:55 AM
Old 08-26-2018
Dear Don,
Thanks for your reply.
I am running under ubuntu 18.04.
Let me specificially give an example for my case:

Let's say, string1 is keyword, string2 is .
I wish to remove dot sign when keyword is found in line:
I do:
Code:
sed '/keyword/s/.//g' TextFile > output

Double quotes is also not sorting it out.

There is no below line in output file:
Code:
Second line with keyword &.

 

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LEARN ABOUT DEBIAN

gethead

gethead(1)						      General Commands Manual							gethead(1)

Name
       gethead - Print FITS or IRAF header keyword values

Synopsis
       gethead [-hptv] [-d pathname] [-n num] <FITS or IRAF file> kw1 kw2 ... kwn

Description
       Print  values of the specified keywords from the given image header.  By default they are all listed on one line, separated by spaces.  The
       -v flag causes the keyword names and values to be printed, one keyword per line.  To read keywords from a list of files, substitute @<list-
       file>  for  the file names on the command line.	To read a lot of keywords, put them, one 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.

Options
       -a     List file name even if keywords are not found

       -d     Root directory for input files (default is cwd)

       -e     Output keyword=value's on one line per file

       -f     Never print filenames (default is to print them if more than one)

       -g     Output keyword=value's on one line per keyword

       -h     flag causes the keyword names to be printed at top of columns.

       -n     Number of decimal places in numeric output

       -o     OR conditions instead of ANDing them

       -p     Print full pathnames of files

       -t     flag causes the output to be in tab-separated tables with keyword column headings.

       -u     Always print ___ if keyword not found, event if only one keyword in search

       -v     Print output as <keyword>=<value>, one per line

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

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

6 July 2001							     WCSTools								gethead(1)
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