11-21-2008
using variable in sed
i need to use a value in the Variable to print a particular line from a file using sed command.
i tried the below one but its is not working
sed -n ' "$var"p ' abc.txt
but its is not working please help me to sort out this.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
So what I'm trying to do is
I have these variables and if they have a dot in them , I want everyting before and including the dot removed.
Any ideas ?
Something like this I would want :
$var = $var | sed 's/.*\.//'
but that does't work.
I want to save that removal $var... (2 Replies)
Discussion started by: seaten
2 Replies
2. Shell Programming and Scripting
HOw can I use any variable in sed command.
For example I am using 'sed -e 's/?/$ORACLE_HOME/g' $file_name
Here it replaces ? with $ORACLE_HOME. Instead of it I need actual value of $ORACLE_HOME. How can I do that?
Please advice.
Thanks in advance.
Malay (13 Replies)
Discussion started by: malaymaru
13 Replies
3. Shell Programming and Scripting
Hi,
My shell script searches a VALUE in a file, copies it to a variable and updates a line in another file with this new VALUE (replacing the old)
The value has a pattern-
VALUE=`$$MyDate=11-11-2008 09.09.56.123456`
(yes the $ - . = and space are all part of the string)
I am having... (6 Replies)
Discussion started by: ngagemaniac
6 Replies
4. Shell Programming and Scripting
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)
Discussion started by: alrinno
2 Replies
5. Shell Programming and Scripting
I want to instert Category:XXXXX into the 2. line
something like this should work, but I have somewhere the wrong sytanx. something with the linebreak goes wrong:
sed "2i\\${n}Category:$cat\n"
Sample:
Titel Blahh Blahh abllk sdhsd sjdhf
Blahh Blah Blahh
Blahh
Should look like... (2 Replies)
Discussion started by: lowmaster
2 Replies
6. Shell Programming and Scripting
I'm trying to make a sed substitution where the substitution pattern is an environment variable to be expanded, but the variable contains a "slash".
sed -e 's/<HOME_DIRECTORY>/'$HOME'/'This gives me the following error:
sed: -e expression #1, char 21: unknown option to `s'Obviously this is... (2 Replies)
Discussion started by: Ilja
2 Replies
7. Shell Programming and Scripting
Hi Friends
in sed whether we can use variable.like the following expression.
sed -i 's/ABC/$var/g' filename
I am using Kernel 2.6.18-194.11.1.el5 RedHat linux.
I have tried sed -i 's/ABC/"$var"/g' filename, still not working.:(
Please help.
Thanks in advance
Joy (2 Replies)
Discussion started by: itsjoy2u
2 Replies
8. Shell Programming and Scripting
Hello
i would like to interpret a variable in this command
cnt=3
sed -n '${cnt}p' file.txt
sed: 0602-403 `${cnt}`p is not a recognized function.
can you help me please ?
thanks (2 Replies)
Discussion started by: ade05fr
2 Replies
9. Red Hat
Hi all,
Hereby wish to have your advise for below:
Main concept is
I intend to get current directory of my script file.
This script file will be copied to /etc/init.d.
A string in this copy will be replaced with current directory value.
Below is original script file:
... (6 Replies)
Discussion started by: cielle
6 Replies
10. Shell Programming and Scripting
version=git
release=r8
echo lp-testsuite-git-r8.x86_64.rpm |sed -e "s/-$version-$release.*//g"
I want to get
lp-testsuite
what's wrong with me ? (1 Reply)
Discussion started by: yanglei_fage
1 Replies
LEARN ABOUT SUNOS
pkgproto
pkgproto(1) User Commands pkgproto(1)
NAME
pkgproto - generate prototype file entries for input to pkgmk command
SYNOPSIS
pkgproto [-i] [-c class] [path1]
pkgproto [-i] [-c class] [path1=path2...]
DESCRIPTION
pkgproto scans the indicated paths and generates prototype(4) file entries that may be used as input to the pkgmk(1) command.
If no paths are specified on the command line, standard input is assumed to be a list of paths. If the pathname listed on the command line
is a directory, the contents of the directory is searched. However, if input is read from stdin, a directory specified as a pathname will
not be searched.
OPTIONS
-i Ignores symbolic links and records the paths as ftype=f (a file) versus ftype=s (symbolic link).
-c class Maps the class of all paths to class.
OPERANDS
path1 Pathname where objects are located.
path2 Pathname which should be substituted on output for path1.
EXAMPLES
Example 1: Examples of the use of pkgproto.1.
The following two examples show uses of pkgproto and a partial listing of the output produced.
Example 1:
example% pkgproto /bin=bin /usr/bin=usrbin /etc=etc
f none bin/sed=/bin/sed 0775 bin bin
f none bin/sh=/bin/sh 0755 bin daemon
f none bin/sort=/bin/sort 0755 bin bin
f none usrbin/sdb=/usr/bin/sdb 0775 bin bin
f none usrbin/shl=/usr/bin/shl 4755 bin bin
d none etc/master.d 0755 root daemon
f none etc/master.d/kernel=/etc/master.d/kernel 0644 root daemon
f none etc/rc=/etc/rc 0744 root daemon
Example 2:
example% find / -type d -print | pkgproto
d none / 755 root root
d none /bin 755 bin bin
d none /usr 755 root root
d none /usr/bin 775 bin bin
d none /etc 755 root root
d none /tmp 777 root root
EXIT STATUS
0 Successful completion.
>0 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
pkgmk(1), pkgparam(1), pkgtrans(1), prototype(4), attributes(5)
Application Packaging Developer's Guide
NOTES
By default, pkgproto creates symbolic link entries for any symbolic link encountered (ftype=s). When you use the -i option, pkgproto cre-
ates a file entry for symbolic links (ftype=f). The prototype(4) file would have to be edited to assign such file types as v (volatile), e
(editable), or x (exclusive directory). pkgproto detects linked files. If multiple files are linked together, the first path encountered is
considered the source of the link.
By default, pkgproto prints prototype entries on the standard output. However, the output should be saved in a file (named Prototype or
prototype, for convenience) to be used as input to the pkgmk(1) command.
SunOS 5.10 6 Nov 2000 pkgproto(1)