head and tail cannot add any information on their own. For easy string replacements, you probably want sed.
This will search for "<data" and perform a substitution ("s") of "-server" with "-server -MyParameter" (the & is magical and means "whatever we are substituting") on that line. Other lines are printed unchanged.
Script 1
Pre-requisites
Create a file with x amount of lines in it, the content of your choice.
Write a script that takes two arguments. The first being a line of text, the second being your newly created file. The script should take the first argument and insert it into the very top (the... (3 Replies)
Can anyone help me pls? I want to add a text into the middle of file.
I've writtenthe following script
text to add="$1"
file="$2"
lines=$(wc -l $2)
half_lines=$(expr $lines / 2)
head -$half_lines $2 > temp
echo "text to add" >> temp
((half_lines=$half_lines + 1))
tail -$half_lines $2... (6 Replies)
I need a script to process a huge single line text file:
The sample of the text is:
"forward_inline_item": "Inline", "options_region_Australia": "Australia", "server_event_err_msg": "There was an error attempting to save", "Token": "Yes", "family": "Family","pwd_login_tab": "Enter Your... (1 Reply)
Hello,
Need help substituting a particular word in a file having a single line but no newline character at the end.
I was trying to use sed but it doesn't work probably because there is no newline char at the end of the line.
$ cat hlq_detail
/outputs/alvan23/PDFs/bills
$ cat... (5 Replies)
Hi ,
how to add the single digit to front of the word and front of the lines in the one file with compare pattern file and get digit. like example
pattern file pattern.txt
pattern num
bala 2
raja 3
muthu 4
File Name: chennai.dat
muthu is good boy
raja is bad boy
selvam in super... (6 Replies)
Hi, I have a single colum file and I need to reformat the file so that it creates a new line every time it come to an IP address and the following lines are corresponding rows until it comes to the next IP address.
I want to turn this
172.xx.xx.xx
gwpusprdrp02_pv
seinwnprd03... (7 Replies)
I am trying to get text from a webpage, in terminal form. So far I am:
1. getting the html for the page printed using curl (curl -s webpage.com), which is then
2. piped to awk, printing line number 29 (awk NR==29), then
3. this is where I am sort of lost. I know where in the printed line I... (7 Replies)
I would like to add a line to the end of a single column text file. How do I go about doing that?
Input:
BEGIN
1
2
3
Output:
BEGIN
1
2
3
END
Thanks! (1 Reply)
Below code extracts multiple field values from XML into array and prints all in one line.
perl -nle '@r=/(?: jndiName| authDataAlias| value| minConnections| maxConnections| connectionTimeout| name)="(+)/g and print join ",",$ENV{tIPnSCOPE},$ENV{pr
ovider},$ENV{impClassName},@r' server.xml
... (4 Replies)