Actually, the single quotes are making the difference, not the double ones:
All the awk code is enclosed in single quotes, when you want to "break" the awk code because you need the value held by an external shell environment variable, you simply close your code with a quote and reopen it (with another quote) when you've finished the external variable evaluation.
Putting double quotes around a shell variable is only a good scripting practice (so you avoid possible problem with null values, etc...).
hi all ,
i want a command that interacts with the input of a user .
i.e.
i want it to serch a file for the first occurance of a variable and replace the value that is after the equal sign .
for example :
my file contains a varible that is $HOME=/home
i want to search for variable $HOME... (4 Replies)
I have an xml file with following tags
<NewTag>value123</xyz>
<NewTag>value321</abcd>
I have to replace the values in between the tags with some value ( VAL1/VAL2)
but the thing the ending tag can be any thing, for this i need a awk command
currently i am using this but it... (5 Replies)
Hi all,
I need help in replacing awk with sed for the below.
1 ) cat list | awk -F" |," '/MATH/ {sub(/]*/,"",$3); print $3}'
Eg: file : list
Sno Subno Name
1 SUB1 ENG
2 SUB2 MATH
2)
Eg:result
Total No of Students: 2
Sno ID Sub
------------------
1 ... (3 Replies)
hi
i am using awk for first time so i am having issue
is it the correct way of using
Y here is variable which i fetch using grep from file
awk -v X={$Y}
{
if ($0 ~ /X/ ) { sub (out.*/,"out1",$0) }
print 0
}, filename > temp
when i look into temp file i dont see any replacement... (9 Replies)
Hello everyone,
I have a problem with awk replacement... I need to replace "|\n" for "\n"
I tried thisawk '{ sub(/\|\\n/, "\\n"); print }'
but it seems like it doesn't work properly. Can anyone help with that? (4 Replies)
I been trying to figure out how to use element of array as a replacement pattern. This works as I expected:
$ echo "one two three" | awk '{
gsub(/wo/,"_BEG_&_END_",$2);
print }'
one t_BEG_wo_END_ three
$ echo "one two three" | awk '{
tmp="foo";
gsub(/wo/,"_BEG_" tmp "_END_",$2);... (5 Replies)
Hi,
I have a file where I want to replace the 15th field separated by comma, only on specific lines matching lots of different conditions.
I have managed to read the file line by line, within the loop my line is held in a variable called $line
I assume this will be using sed (maybe... (5 Replies)
Hi All,
I am trying to replace the variable in the file after the particular match string. It is being replaced if i hardcode the value and with use of "&" with sed.
sed -e "s/URL./& http:\\localhost:7223/g"
But when am trying to pass the variable it is failing. I tried multiple... (9 Replies)
Hi,,
I have the line below in a file:
$!VarSet |LFDSFN1| = '"E:\APC\Trials\20140705_427_Prototype Trial\Data\T4_20140705_Trial_Cycle_Data_13_T_Norm.txt" "VERSION=100 FILEEXT=\"*.txt\" FILEDESC=\"General Text\" "+""+"TITLE{SEARCH=NONE NAME=\"New Dataset\" LINE=1I want to write a script to change... (2 Replies)
Dear all,
I have a "SQL request" in a file: that request include different "host variable" and I would like to substitute the different "host variable" by their respective content before executing the request.
For example:
$ echo $SHELL
/bin/bash
$ cat dae2.txt
DELETE FROM ... (11 Replies)
Discussion started by: dae
11 Replies
LEARN ABOUT SUSE
set_color
set_color(1) fish set_color(1)NAME
set_color - set_color - set the terminal color
set_color - set the terminal color
Synopsis
set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]
Description
Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
cyan, white and normal.
o -b, --background Set the background color
o -c, --print-colors Prints a list of all valid color names
o -h, --help Display help message and exit
o -o, --bold Set bold or extra bright mode
o -u, --underline Set underlined mode
o -v, --version Display version and exit
Calling set_color normal will set the terminal color to whatever is the default color of the terminal.
Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
font color, while set_color --bold white will result in a white font color.
Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.
set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
ncurses and recompile fish against it in order to fix this issue.
Version 1.23.1 Sun Jan 8 2012 set_color(1)