Delete a line containing a string from user input


 
Thread Tools Search this Thread
# 1  
Delete a line containing a string from user input

I have code that accepts input from a user, and when the user hits enter it is supposed to delete that whole line from the file.

echo "Which record? "
read record
sed '/$record/d' file

However, it does not delete it. Any help?
# 2  
Try this:
Code:
sed -e "/$record/d" file

Note the -e option and the DOUBLE quotes replacing the SINGLE quotes.
 

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Insert a user input string after matched string in file

i am having file like this #!/bin/bash read -p 'Username: ' uservar match='<color="red" />' text='this is only a test so please be patient <color="red" />' echo "$text" | sed "s/$match/&$uservar\g" so desireble output what i want is if user type MARIA this is only a test so please... (13 Replies)
Discussion started by: tomislav91
13 Replies

2. UNIX for Dummies Questions & Answers

Search for a string,delete the line and replace with new string in a file

Hi Everyone, I have a requirement in ksh where i have a set of files in a directory. I need to search each and every file if a particular string is present in the file, delete that line and replace that line with another string expression in the same file. I am very new to unix. Kindly help... (10 Replies)
Discussion started by: Pradhikshan
10 Replies

3. UNIX for Advanced & Expert Users

How to find a string in a line in UNIX file and delete that line and previous 3 lines ?

Hi , i have a file with data as below.This is same file. But actual file contains to many rows. i want to search for a string "Field 039 00" and delete that line and previous 3 lines in that file.. Can some body suggested me how can i do using either sed or awk command ? Field 004... (7 Replies)
Discussion started by: vadlamudy
7 Replies

4. Homework & Coursework Questions

Function to Check if string input from user is alphabetic only

Good Evening. I'm new to C. Can you please help me. I'm creating an error checking function, user will input a string, this will check if the input is all alphabet or all letters only. If there is a digit or other special char, it will print Error then ask input from user again. Here's my... (1 Reply)
Discussion started by: eracav
1 Replies

5. Shell Programming and Scripting

String generation from user input

Hi I have one thing I need advice on, and I don't know where to start so I have no sample code. I want the user to provide input like: 1-3,6,7,9-11 When the input is like this, I want a string to be generated including all the numbers. In the example above, the string would look like: 1... (13 Replies)
Discussion started by: Tobbev
13 Replies

6. Shell Programming and Scripting

Grep a string from input file and delete next three lines including the line contains string in xml

Hi, 1_strings file contains $ cat 1_strings /home/$USER/Src /home/Valid /home/Review$ cat myxml <projected value="some string" path="/home/$USER/Src"> <input 1/> <estimate value/> <somestring/> </projected> <few more lines > <projected value="some string" path="/home/$USER/check">... (4 Replies)
Discussion started by: greet_sed
4 Replies

7. UNIX for Dummies Questions & Answers

Bash script to delete file input on command line

1) I wrote a script and gave the desired permissions using "chmod 755 scriptname". Now if i edit the script file, why do i need to set the permission again? Didn't i set the permission attribute.. or if i edit the file, does the inode number of file changes? 2) I am running my unix on a server... (1 Reply)
Discussion started by: animesharma
1 Replies

8. Shell Programming and Scripting

Command line user input validation

Hi guys, I have a piece of snippet below which asks the user to input some numbers if isDatasubEnabled && isReconEnabled; then echo "1 = CGT, 2 = Subscriber, 3 = Order Monitor, 4 = Revaluations, 5 = Reconciliation, 6 = All, 7 = Exit" elif isDatasubEnabled &&... (4 Replies)
Discussion started by: pyscho
4 Replies

9. UNIX for Dummies Questions & Answers

How to read a line of text from user input?

Hiii I wanna a read a line of text from standard input. The user enter data like this way name phone_no month1_salary month2_salary that is user enter the name ,phone no and salary of 2 months in a single line by giving spaces. I wanna add the 3rd and 4th fields ...ie add both... (4 Replies)
Discussion started by: krishnampkkm
4 Replies

10. Shell Programming and Scripting

String extraction from user input - sh

Hi, I have a shell script to build components of a product. The follow snippet will explain what I am doing. # !/bin/sh for choice in "$@" ; do case $choice in "o") echo "Calling $choice" ; o ;; "i") echo... (8 Replies)
Discussion started by: vino
8 Replies

Featured Tech Videos