This will work only if the setting is left-aligned, which is usually the case, but not necessarily so. Furthermore you are replacing the whole line which would delete comments within the same line, like:
You can make that more robust by:
By the way: you know that PASS_MIN_LEN is obsoleted as it is handled by PAM nowadays, yes?
I need to replace the line containing "STAGE_DB" with the line
"STAGE_DB $DB # database that contains the table being loaded ($workingDB)"
Here $DB is passed during the runtime.
How can I do this?
Thanks,
Kousikan (2 Replies)
Hi,
I have a problem. I want to use SED to replace one line with three
It looks like:
PARAM='first_line,second_line,third_line'
And in file:
blablabla
blablabla
PARAM
blablabla
blablabla
blablabla
All I want is to change this into:
blablabla
blablabla
first_line
second_line... (6 Replies)
i have few lines in a file... i am reading them in a while loop so a particular line is held is $line1.. consider a modified line is held in $line2.... i want to replace $line1 with $line2 in the same file... how to do it..?
i have come up till the below code
sed "s/$line1/$line2/g" tmpfile.sql... (5 Replies)
Hi How Are you?
I am doing fine!
I need to go now?
I will see you tomorrow!
Basically I need to replace the entire line containing "doing" with a blank line:
I need to the following output:
Hi How Are you?
I need to go now?
I will see you tomorrow!
Thanks in advance.... (1 Reply)
Hi
I have to replace a pattern found in the first uncommented line in a file. The challenge I'm facing is there are several such similar lines but I have to edit only the first uncommented line.
Eg:
#this is example
#/root/xyz:Old_Pattern
/root/xyz:Old_Pattern
/root/xyz:Old_Pattern
... (10 Replies)
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)
All, I appreciate any help you can offer here as this is well beyond my grasp of awk/sed...
I have an input file similar to:
&LOG
&LOG Part: "@DB/TC10000021855/--F"
&LOG
&LOG
&LOG Part: "@DB/TC10000021852/--F"
&LOG Cloning_Action: RETAIN
&LOG Part: "@DB/TCCP000010713/--A"
&LOG
&LOG... (5 Replies)
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)
Hi all,
Let's say I have a script calling for the two variables PA_VALUE and PB_VALUE.
for pa in PA_VALUE
blah blah
do
for pb in PB_VALUE
blah blah
do
I have a text file with two columns of values for PA and PB.
14.5 16.7
7.8 9.5
5.6 3.6
etc etc
I would like to read this... (7 Replies)
I have few lines in a text file. I am trying to get the line number of uncommented line from the text file using unix shell script.
For example : I want the line number of Orange from the below text file. Here expected answer is 4 since the line 2 is commented.
Apple
#Orange
grapes
Orange (4 Replies)
Discussion started by: Brennon
4 Replies
LEARN ABOUT XFREE86
securetty
SECURETTY(5) Linux Programmer's Manual SECURETTY(5)NAME
securetty - file which lists terminals from which root can log in
DESCRIPTION
The file /etc/securetty contains the names of terminals (one per line, without leading /dev/) which are considered secure for the transmis-
sion of certain authentication tokens.
It is used by (some versions of) login(1) to restrict the terminals on which root is allowed to login. See login.defs(5) if you use the
shadow suite.
On PAM enabled systems, it is used for the same purpose by pam_securetty(8) to restrict the terminals on which empty passwords are
accepted.
FILES
/etc/securetty
SEE ALSO login(1), login.defs(5), pam_securetty(8)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2015-03-29 SECURETTY(5)