08-04-2007
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
i want to cut all the entries from the /etc/passwd file in which the uid is> 500
for this i was writing this ,m quiet new to all this.. scripting
but on the 6th n 8th line ,, i hav to specify a line number .. to get the commnd working .. but i want to use variable i instead of that ,,... (2 Replies)
Discussion started by: narendra.pant
2 Replies
2. Shell Programming and Scripting
Hello, I need help in appending the line number of each line to the file and also to get the total number of lines. Can somebody please help me.
I have a file say:
abc
def
ccc
ddd
ffff
The output should be:
Instance1=abc
Instance2=def
Instance3=ccc
Instance4=ddd
Instance5=ffff
... (2 Replies)
Discussion started by: chiru_h
2 Replies
3. Shell Programming and Scripting
Hi,
I have a huge file & I want to add a specific text in column. But I want to add this text from a specific line number to a specific line number & another text in to another range of line numbers.
To be more specific: lets say my file has 1000 lines & 4 Columns. I want to add text "Hello"... (2 Replies)
Discussion started by: Ezy
2 Replies
4. Shell Programming and Scripting
Hi Everybody,
I am trying to write a script that will get some perticuler data from a file and redirect to a file.
My Question is,
I have a Very huge file,In that file I have my required data is started from 25th line and it will ends in 100th line.
I know the line numbers, I need to get all... (9 Replies)
Discussion started by: Anji
9 Replies
5. UNIX for Dummies Questions & Answers
Hello Everyone.
I am trying to display contains of a file from a specific line to a specific line(let say, from line number 3 to line number 5). For this I got the shell script as shown below:
if ; then
if ; then
tail +$1 $3 | head -n $2
else
... (5 Replies)
Discussion started by: grc
5 Replies
6. Shell Programming and Scripting
Hello everyone,
I don't really know anything about scripting, but I have to manage to make this script, out of necessity.
#!/bin/bash
while read -r line; do #I'm reading from a big wordlist
instructions using $line
done
Is there a way to automatically write the $line number the script... (4 Replies)
Discussion started by: bobylapointe
4 Replies
7. Shell Programming and Scripting
Hi All,
I've a file like this..
Sheet1
a,1
a,2
a,3
a,4
a,5
Sheet2
a,6
a,7
a,8
a,9
a,10
Sheet3
a,11
a,12
a,13 (7 Replies)
Discussion started by: manab86
7 Replies
8. Shell Programming and Scripting
my requirement is,
consider a file output
cat output
blah sdjfhjkd jsdfhjksdh
sdfs 23423 sdfsdf sdf"sdfsdf"sdfsdf"""""dsf
hellow there
this doesnt look good
et cetc etc
etcetera
i want to replace a line of line number 4 ("this doesnt look good") with some other line
... (3 Replies)
Discussion started by: vivek d r
3 Replies
9. Shell Programming and Scripting
I need to remove double quoted strings from specific lines in a file. The specific line numbers are a variable. For example, line 5 of the file contains
A B C "string"
I want to remove "string". The following sed command works:
sed '5 s/\"*\"//' $file
If there are multiple... (2 Replies)
Discussion started by: rennatsb
2 Replies
10. Shell Programming and Scripting
Sed command to replace a line in a file using line number from the output of a pipe.
Is it possible to replace a whole line piped from someother command into a file at paritcular line...
here is some basic execution flow..
the line number is 412
lineNo=412
Now i have a line... (1 Reply)
Discussion started by: vivek d r
1 Replies
line(1) General Commands Manual line(1)
NAME
line - Reads one line from standard input
SYNOPSIS
line
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
line: XCU5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
OPTIONS
None
DESCRIPTION
The line command copies one line, up to and including a newline, from standard input and writes it to standard output. Use this command
within a shell command file to read from your terminal. The line command always writes at least a newline character.
NOTES
The line utility has no internationalization features and is marked LEGACY in XCU Issue 5. Use the read utility instead.
EXIT STATUS
Success. End-of-File.
EXAMPLES
To read a line from the keyboard and append it to a file, enter: echo 'Enter comments for the log:' echo ': c' line >>log
This shell procedure displays the message: Enter comments for the log:
It then reads a line of text from the keyboard and adds it to the end of the file log. The echo ': c' command displays a : (colon)
prompt. See the echo command for information about the c escape sequence.
SEE ALSO
Commands: echo(1), ksh(1), read(1), Bourne shell sh(1b), POSIX shell sh(1p)
Functions: read(2)
Standards: standards(5)
line(1)