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)
Check Out this Related Man Page
true(1) General Commands Manual true(1)NAME
true, false - Returns a standard exit value
SYNOPSIS
true
false
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
true: XCU5.0
false: XCU5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
DESCRIPTION
The true command returns a 0 (zero) exit value. The false command returns a nonzero exit value. These commands are usually used in input to
shell commands.
NOTES
The special built-in utility : (colon) is sometimes more efficient than the true command.
EXIT STATUS
[Tru64 UNIX] The nonzero value returned by the false command may vary from system to system.
EXAMPLES
To construct a loop in a shell procedure, enter: while true do date sleep 60 done
This procedure displays the date and time once a minute. To stop it, press the Interrupt key sequence.
SEE ALSO
Commands: csh(1), ksh(1), Bourne Shell sh(1b), POSIX shell sh(1p)
Standards: standards(5)true(1)
Hi!
I need to determin the most efficient way to do something (rather simple, I thought).
I'm currently echo(ing) a series of menu options, and reading the command input as the number associated with the entry. What I need to do is when the option 1 is selected, that it references a list and... (18 Replies)
i have a file call text and i what the user to enter any word he/she wants to replace with any word
i current have
cat text
echo "Please enter the word to be amended:"
read old
echo "Please enter a new word:"
read new
sed "s/$old/$new/g" $1 > text
echo "press ENTER to continue"... (14 Replies)
Hi ,
I am trying the following simple script . But it is always giving 1 output. Dont know why
#!/bin/sh
find . -name "a.log"
if ; then
echo "1"
else
echo "0"
fi
Kindly advice. it is giving 1 output even when the a.log file is not there (26 Replies)
Hi, ive got this piece of script:
echo "Enter your full name" (i.e. first and last name)
read name
echo "Hello Mr.(last name only)
How do i split the string so that it says hello and then only displays the surname entered? The user has to be able to enter their name all on one line. i know... (24 Replies)
Hi All,
How to read a file upto last line(End Of Line)
I wrote below program:
cat R2_20060719.610.txt | while read LINE
do
echo "$LINE"
done
above code reading all lines from a file and skipping last line......
is there anything wrong in my code.
Please help me out from this... (20 Replies)
Hi I'm trying to write a script which takes an integer as input and checks for files with size > input and displays it on screen.
The code I've tried :
echo 'Enter the min file size expected'
read filesize
du -ah <folder name> | awk -F: '$1>int(filesize) {print $1,$2)' is always... (28 Replies)
Hi All,
Can Anyone please tell me,how can I delete a line from a file.
I am reading the file line by line using whil loop and validating each line..Suppose in the middle i found a particular line is invalid,i need to delete that particular line.
Can anyone please help.
Thanks in advance,... (14 Replies)
I have a nawk that reads in a log file and outputs a file that matches my search.
IFS=" "
while read record
do
`echo $record | nawk 'BEGIN {
FS=" "
}
{
type_record=substr($0, 1, 1);
if (... (14 Replies)
Hi,
Pl help me.
User is entering the values for the given input
Enter keys: secret1 secret2 secret3
can i extract the last digit of each values in the keys..
here for ex. 1 2 3
can we get this using shell script? (22 Replies)
Hi Guys,
I am new to unix.
Actually i want help in writing an single command where
i can actually read specific line number in file where the line number will be passed to command as parameter.
ex.
1 a
2 b
3 c
4 d
And to my command i pass as 2.
so i should get output as 2 b
... (15 Replies)
Hiii
I am very new to shell scripting.This is my data file
a.txt:
56
45.78
1000
11.23
76.89
45
34.56
23
3400
100
..........
Now i am must use shell scripting to read n number of lines from the file & from ts n number of lines i need to find greatest number among them & so on for... (44 Replies)
The "read" command, which is built into bash, takes words from the standard input. However, "read" is not good at taking file names if the file names contain spaces. I would like my bash script to ask the user to enter file names, which may contain spaces. Can you think about any technique for... (14 Replies)
Hi friends,
Today I found one strange behaviour of the tr command.
I used the following command:
echo "NEE"|tr
Sometimes it was giving "nee" as ouput . sometimes it was giving "NEE" as output.
Finally I used the below code:
echo "NEE"|tr "" ""
... and it gave me the correct... (17 Replies)
I have been trying this program for a long time. I am trying to read a file named "odon" line by line; read the first line, send it to do a command saved in a file "perm", once the first line has finished going through the content of the file perm, the result is saved with the number of the line.... (17 Replies)
While installing kubernetes, I have to run 1 script. Below is a part of that code. I am getting an error as
-bash: syntax error near unexpected token `}'
Please help me to find what changes are required for the below mentioned piece of code.
kube::util::godep_restored() {
local -r... (16 Replies)