Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Need to replace one string, in a file, with another string from a different file ...
Top Forums Shell Programming and Scripting Need to replace one string, in a file, with another string from a different file ... Post 302353104 by Praveen_218 on Monday 14th of September 2009 02:58:58 PM
Old 09-14-2009
For the following code:
Code:
awk -F":" -v OFS=":" 'NR==FNR{a[$1]=$2;next}a[$1]{$2=a[$1]}1'  shadow2 shadow1 > shadow3

I get syntex error (random one ) as below:
Code:
awk: NR==FNR{a[]=;next}a[]{=a[]}1
awk:           ^ syntax error
awk: fatal: invalid subscript expression

What might be the potential cause?

---------- Post updated 09-15-09 at 12:28 AM ---------- Previous update was 09-14-09 at 11:40 PM ----------

I just noticed that when I create a bash script using the HERE-TAG(from within another bash script) ; in the following manner:

Code:
#!/usr/bin/env bash
# Bash_script001.sh

   echo " Inside Bash_script001.sh";
   ...
   ...
   ...

cat>>"Bash_script002.sh"<<EOF
#!/usr/bin/env bash
# Bash_script002.sh

   echo " Inside Bash_script002.sh";
   ...

   awk -F":" -v OFS=":" 'NR==FNR{a[$1]=$2;next}a[$1]{$2=a[$1]}1' shadow2 shadow1 > shadow3;
   ...

   ...

EOF

   ....
   echo " Again inside Bash_script001.sh processing rest of Bash_script001.sh ";

Now when the 'Bash_script002.sh' gets created and as it contains the awk script which inturns contains variables $1, $2 as array a[] indexes; the resultant 'Bash_script002.sh' contains only the following:

Code:
awk -F":" -v OFS=":" 'NR==FNR{a[]=;next}a[]{=a[]}1' shadow2 shadow1 > shadow3;

Thats why I'm receiving the syntex error.

Will you please suggest, what can be done to avoid getting the above erronious 'awk' statement in the resultant 'Bash_script002.sh' ?

Thanks in advance and my sincere appreciation for the support so far I received in this forum from all.
Last edited by Praveen_218; 09-14-2009 at 04:11 PM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How To Replace A String In File With A String Containing Windows File Path

Hi, I have a file with the following contents # Lines that start with a # are comments. # # Calling TOAD like this will perform a comparison from command line : # # "C:\Program Files\Quest Software\Toad for Oracle 9.6\toad.exe" -c... (2 Replies)
Discussion started by: rajan_san
2 Replies

2. Shell Programming and Scripting

Using sed to replace a string in file with a string in a variable that contains spaces

Hi, i call my shell like: my_shell "my project name" my script: #!/bin/bash -vx projectname=$1 sed s/'PROJECT_NAME ='/'PROJECT_NAME = '$projectname/ <test_config_doxy >temp cp temp test_config_doxy the following error occurres: sed s/'PROJECT_NAME ... (2 Replies)
Discussion started by: vivelafete
2 Replies

3. Shell Programming and Scripting

replace (sed?) a single line/string in file with multiple lines (string) from another file??

Can someone tell me how I can do this? e.g: Say file1.txt contains: today is monday the 22 of NOVEMBER 2010 and file2.txt contains: the 11th month of How do i replace the word NOVEMBER with (5 Replies)
Discussion started by: tuathan
5 Replies

4. UNIX for Dummies Questions & Answers

Search a string in the file and then replace another string after that position

Hi I am looking for a particular string in a file.If the string exists, then I want to replace another string with some other text.Once replaced, search for the same text after that character position in the file. :wall: E.g: Actual File content: Hello Name: Nitin Raj Welcome to Unix... (4 Replies)
Discussion started by: dashing201
4 Replies

5. Shell Programming and Scripting

replace (sed?) a string in file with multiple lines (string) from variable

Can someone tell me how I can do this? e.g: a=$(echo -e wert trewt ertert ertert ertert erttert erterte rterter tertertert ert) How do i replace the STRING with $a? I try this: sed -i 's/STRING/'"$a"'/g' filename.ext but this don' t work (2 Replies)
Discussion started by: jforce
2 Replies

6. Shell Programming and Scripting

find string and replace with string in other file

Dear all, I need your help, I have file like this: file1:23456 01910964830098775635 34567 01942809546554654323 67589 26546854368698023653 09778 58716868568576876878 08675 86178546154065406546 08573 54165843543054354305 . .file2: 23456 25 34567 26 67589 27 (2 Replies)
Discussion started by: attila
2 Replies

7. UNIX for Dummies Questions & Answers

Search for a string,delete the line and replace with new string in a file

Hi Everyone, I have a requirement in ksh where i have a set of files in a directory. I need to search each and every file if a particular string is present in the file, delete that line and replace that line with another string expression in the same file. I am very new to unix. Kindly help... (10 Replies)
Discussion started by: Pradhikshan
10 Replies

8. Shell Programming and Scripting

Replace string in XML file with awk/sed with string from another

Sorry for the long/weird title but I'm stuck on a problem I have. I have this XML file: </member> <member> <name>TransactionID</name> <value><string>123456789123456</string></value> </member> <member> <name>Number</name> ... (9 Replies)
Discussion started by: cozzin
9 Replies

9. Shell Programming and Scripting

Replace string of a file with a string of another file for matches using grep,sed,awk

I have a file comp.pkglist which mention package version and release . In 'version change' and 'release change' line there are two versions 'old' and 'new' Version Change: --> Release Change: --> cat comp.pkglist Package list: nss-util-devel-3.28.4-1.el6_9.x86_64 Version Change: 3.28.4 -->... (1 Reply)
Discussion started by: Paras Pandey
1 Replies

10. UNIX for Beginners Questions & Answers

Search partial string in a file and replace the string - UNIX

I have the below string which i need to compare with a file and replace this string in the file which matches closely. Can anyone help me on this. string(Scenario 1)- user::r--,user::ourfrd:r-- String(Scenario 2)- user::r-- File **** # file: /local/Desktop/myfile # owner: me # group:... (6 Replies)
Discussion started by: sarathy_a35
6 Replies

LEARN ABOUT HPUX

replace

REPLACE(1)						       MySQL Database System							REPLACE(1)

NAME

       replace - a string-replacement utility

SYNOPSIS

       replace arguments

DESCRIPTION

       The replace utility program changes strings in place in files or on the standard input.

	   Note
	   The replace utility is deprecated as of MySQL 5.7.18 and is removed in MySQL 8.0.

       Invoke replace in one of the following ways:

	   shell> replace from to [from to] ... -- file_name [file_name] ...
	   shell> replace from to [from to] ... < file_name

       from represents a string to look for and to represents its replacement. There can be one or more pairs of strings.

       Use the -- option to indicate where the string-replacement list ends and the file names begin. In this case, any file named on the command
       line is modified in place, so you may want to make a copy of the original before converting it.	replace prints a message indicating which
       of the input files it actually modifies.

       If the -- option is not given, replace reads the standard input and writes to the standard output.

       replace uses a finite state machine to match longer strings first. It can be used to swap strings. For example, the following command swaps
       a and b in the given files, file1 and file2:

	   shell> replace a b b a -- file1 file2 ...

       replace supports the following options.

       o   -?, -I

	   Display a help message and exit.

       o   -#debug_options

	   Enable debugging.

       o   -s

	   Silent mode. Print less information what the program does.

       o   -v

	   Verbose mode. Print more information about what the program does.

       o   -V

	   Display version information and exit.

COPYRIGHT

       Copyright (C) 1997, 2018, Oracle and/or its affiliates. All rights reserved.

       This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as
       published by the Free Software Foundation; version 2 of the License.

       This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation,
       Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.

SEE ALSO

       For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online
       at http://dev.mysql.com/doc/.

AUTHOR

       Oracle Corporation (http://dev.mysql.com/).

MySQL 5.7							    06/07/2018								REPLACE(1)
All times are GMT -4. The time now is 11:09 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy