assigning variables in sed command Post: 98021

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assigning variables

Before I even attempt this, is it possible to grep for a pattern, maybe a partial sentence like "go to page 3", assign that to a variable and then use awk or something to pull out the 3 and assign it to a variable? So first I would have Gotopg = "go to page 3" then page = 3

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sed command not work with variables?

I am trying to write a simple script which will take a variable with sed to take a line out of a text and display it #!/bin/sh exec 3<list while read list<&3 do echo $list sed -n '$list p'<list2 done this does not work, yet when I replace the $list variable from the sed command and...

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assigning variables to their defaults

Hi, Is there any way to assign defaults values to the shell variables without reassigning them ( restarting the session) for example after login the value of ORACLE_HOME=/a/b/c i have changed this value from the console export ORACLE_HOME=/c/d now what if i want the value exported to...

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variables not assigning in a function

Hi GUYS, I have function. I am assigning a line count to count variable. But it is throwing an error at this line. function_recur (){ #file being created in this function lenth = `wc -l function_outpu.dat`; echo $lenth; } this is the error i got rec.ksh: lenth: not found. ...

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Assigning variables using awk

Hi, I am having a line which is separated by - I need to extract each field and put into some variable. a=`echo "this-is-the-case" | awk -F- '{print $1}' ` b=`echo "this-is-the-case" | awk -F- '{print $2}' ` c=`echo "this-is-the-case" | awk -F- '{print $3}' ` d=`echo "this-is-the-case" | awk...

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Variables in SED command

Hi all, I want write a script to display 5rows at times from a input file. my out like: echo " display started" r1 r2 r3 r4 r5 ... Some action items... again i need next 5 lines. can you please advise.

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Help with reading and assigning variables

Hi Gurus, I have a file named log with 2 lines Each line is a file name. eg $ cat log monday tuesday I need to read log and assign each output(filename) to a different variable. The following doesn't work:- while read A B do echo " a is ${A} " echo " b is ${B} " done <...

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How to use variables in 'sed' append command?

HELLO!! I'm trying to pass a variable with in the 'sed' command (which would add some piece of code to file at a particular line). We can use sed '{line-number}a\ alfjaljf\ aslfjsfsjafl\ adlfjaf\' file.txt If file.txt is Now, I would like to add the parameter 'lmn' after...

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