I have a 'sed' editor command trying to read contents of one file into another.
v=t1
PX=25
sed '/for/ r /$v/ext/tsfirmfiles.${PX}' /bb/bin/px${PX}.files.2b.deleted > result
I cannot come up with the syntax so 'sed' would do a variable substitution.
Any idea? Thanks a for help. -A (1 Reply)
Hello,
i have another sed question.. I'm trying to do variable substition with sed and i'm running into a problem.
my var1 is a string constructed like this:
filename1 filerev1 filepath1
my var2 is another string constructed like this:
filename2 filerev2 filepath2
when i do... (2 Replies)
Hi,
I am facing a strange problem. I have a script that used the following to search and replace text:
sed 's/'"${find_var_parm}"'/'"${find_var_filter}"'/g' $ParmFile > $TempFile
The values of $find_var_parm and $find_var_filter are set based on search criteria. The above seems to be working... (2 Replies)
Hi Chaps...
I have a log file as below:-
01 Oct 2009 12:57:56 DEBUG :
01 Oct 2009 12:14:21 DEBUG :.....
.
.
.
.05 Oct 2009 14:31:56 DEBUG :....
.
.
.05 Oct 2009 12:57:56 DEBUG :....
06 Oct 2009 01:23:11 DEBUG :....
.
.
.06 Oct 2009 12:53:46 DEBUG :.... (4 Replies)
Hi,
I have to insert a line at a particular line number in my file. But the line number is not fixed and it will vary every time. So, I have to use a variable to get the line number
I know we can use sed to insert lines at a particular line number but it does not work with variable... (3 Replies)
Hello, I searched the forum and unable to find a solution for my particular problem. I have a text file I'm trying to insert some text using sed after finding a pattern..
File contains in one line
Invoice date: xx/xx/xxxx Balance: $$$$ Name: xxxxxxxxxxxxxx
Trying to insert Invoice "Number:... (3 Replies)
Problem with the code below is that the value of the variable is not getting substituted in the sed expression.
#/bin/csh
set UNIX_ID="rajibd"
set X_ID="xrajibd"
sed -n 's/$UNIX_ID/$X_ID/g' passwd
When run , it is not giving expected output as shown below :
... (4 Replies)
Hi I am trying to do the following in a script find a string and add in a block of text two lines above on the command line this works fine
#/usr/bin/cat /usr/local/etc/dhcpd.conf_subnet | /usr/xpg4/bin/sed -n -e '1h;1\!H;${;g;s/}.*#END of 10.42.33.0/#START of RANGE $dstart\:option... (3 Replies)
Hi Gurus,
Not able to catch what's going wrong here. I just want to get output as "tree".
server:/mk/app/nexapp $ echo $SHELL
/usr/bin/ksh
server:/mk/app/nexapp $ export db_name1="tree"
server:/mk/app/nexapp $ export i=1
1st try:
server:/mk/app/nexapp $ echo $(db_name$i)
ksh: db_name1: ... (3 Replies)
Discussion started by: mukesh.lalwani
3 Replies
LEARN ABOUT DEBIAN
subst
SUBST(1) General Commands Manual SUBST(1)NAME
subst - substitute definitions into file(s)
SYNOPSIS
subst [ -e editor ] -f substitutions victim ...
DESCRIPTION
Subst makes substitutions into files, in a way that is suitable for customizing software to local conditions. Each victim file is altered
according to the contents of the substitutions file.
The substitutions file contains one line per substitution. A line consists of two fields separated by one or more tabs. The first field
is the name of the substitution, the second is the value. Neither should contain the character `#', and use of text-editor metacharacters
like `&' and `' is also unwise; the name in particular is best restricted to be alphanumeric. A line starting with `#' is a comment and
is ignored.
In the victims, each line on which a substitution is to be made (a target line) must be preceded by a prototype line. The prototype line
should be delimited in such a way that it will be taken as a comment by whatever program processes the file later. The prototype line must
contain a ``prototype'' of the target line bracketed by `=()<' and `>()='; everything else on the prototype line is ignored. Subst
extracts the prototype, changes all instances of substitution names bracketed by `@<' and `>@' to their values, and then replaces the tar-
get line with the result.
OPTIONS -e Substitutions are done using the sed(1) editor, which must be found in either the /bin or /usr/bin directories. To specify a dif-
ferent executable, use the ``-e'' flag.
EXAMPLE
If the substitutions file is
FIRST 111
SECOND 222
and the victim file is
x = 2;
/* =()<y = @<FIRST>@ + @<SECOND>@;>()= */
y = 88 + 99;
z = 5;
then ``subst -f substitutions victim'' changes victim to:
x = 2;
/* =()<y = @<FIRST>@ + @<SECOND>@;>()= */
y = 111 + 222;
z = 5;
FILES
victimdir/substtmp.new new version being built
victimdir/substtmp.old old version during renaming
SEE ALSO sed(1)DIAGNOSTICS
Complains and halts if it is unable to create its temporary files or if they already exist.
HISTORY
Written at U of Toronto by Henry Spencer.
Rich $alz added the ``-e'' flag July, 1991.
BUGS
When creating a file to be substed, it's easy to forget to insert a dummy target line after a prototype line; if you forget, subst ends up
deleting whichever line did in fact follow the prototype line.
25 Feb 1990 SUBST(1)