Ok so all i'm trying to do here is output a file and change the color of a specific word. I can't use grep with color because I need all lines of the file not just lines that match the pattern.
I can get this substitution to work but when it displays it shows exactly what i'm putting it rather than changing the color.
I've tried dozens of different combinations and ways of doing this and i'm sure i'm just missing something stupid.
Code:
sed 's/START/echo -e "\033[32m" START/p' /tmp/logfile.log
All I get are log files output with START replaced with echo -e "\033[32m" START
Tried using TPUT as well by doing things like bold=$(tput smso)
Many variations of that. I never got tput to work at all even using just simple test echo with the bold variable.
Last edited by Yogesh Sawant; 04-21-2010 at 03:57 AM..
Reason: added code tags
$ mkdir testcolor
$ cd testcolor
$ echo "LINE 001 START 00:01 END 00:11" > mylog
$ echo "LINE 002 START 01:01 END 01:11" >> mylog
$ echo "LINE 003 START 02:01 END 02:11" >> mylog
$ echo "LINE 004 START 03:01 END 03:11" >> mylog
$ echo "LINE 005 START 04:01 END 04:11" >> mylog
$ cat mylog
LINE 001 START 00:01 END 00:11
LINE 002 START 01:01 END 01:11
LINE 003 START 02:01 END 02:11
LINE 004 START 03:01 END 03:11
LINE 005 START 04:01 END 04:11
$ cat mylog | sed ''/START/s//`printf "\033[32mSTART\033[0m"`/'' > mylog
$ cat mylog
LINE 001 START 00:01 END 00:11
LINE 002 START 01:01 END 01:11
LINE 003 START 02:01 END 02:11
LINE 004 START 03:01 END 03:11
LINE 005 START 04:01 END 04:11
$
Yes that works thank you very much. I didn't output the results to a file though I just had it present them on the screen,
Now what I'm going to try and do is save the command as an alias so that I can cat any file and pipe it into the alias and it will do this for me.
Only thing I'm having difficulty with is getting it to ask me for the variable and use that in the SED command. I can't think of any way I could do it by doing a simple
Code:
cat file | alias
So I may have to just a straight up alias that asks me for 2 variables. the file and word. Not as easy to slip in but you do what you can I guess.
I have the command working if I specify the variable ahead of time. But ideally the word(s) I will want is going to vary all the time.
---------- Post updated at 09:10 PM ---------- Previous update was at 09:07 PM ----------
Can someone explain why the printf command is enclosed in ` and not a single quote ' ? What is the difference there. I mean it doesn't work if I use single quotes and the other character I don't even know specifically what that is called. I've never used it in any other command i've written.
Last edited by Scott; 04-21-2010 at 07:38 PM..
Reason: Please use code tags
Well this is what I have so far. I use the following to actually exceute the highlight word search. So I alias sgrep to this command
Code:
alias sgrep ='echo highlightword? ; read highlightword ; cat $pathoffile | sed ''/$highlightword/s//`printf "\033[32m$highlightword\033[0m"`/'''
This works fine if I specify the pathoffile variable ahead of time. I've been trying to figure out a way to get that variable set with one line. I've triedt his.
alias scat ='pathoffile='
So that in actual use I could do scat /var/log/logfile | sgrep
Then it would substitute in the path to the file and set it as the variable pathoffile but not having much luck there so far.
---------- Post updated at 10:28 PM ---------- Previous update was at 10:12 PM ----------
I wonder if it would be easier to just have it change the color of an entire line that has a word matching the pattern? Rather than just changing the color of the one word.
Last edited by Yogesh Sawant; 04-21-2010 at 03:58 AM..
Reason: added code tags
I've played a bit with that alias thing, but it didn't work properly for me.
Instead I've created a small script which works excellent.
sgrep:
Code:
#!/bin/sh
echo -n "Word: "
read word
echo -n "File: "
read file
cat $file | sed ''/$word/s//`printf "\033[32m$word\033[0m"`/''
$
Code:
$ ./sgrep
Word: LINE
File: mylog
LINE 001 START 00:01 END 00:11
LINE 002 START 01:01 END 01:11
LINE 003 START 02:01 END 02:11
LINE 004 START 03:01 END 03:11
LINE 005 START 04:01 END 04:11
$ ./sgrep
Word: START
File: mylog
LINE 001 START 00:01 END 00:11
LINE 002 START 01:01 END 01:11
LINE 003 START 02:01 END 02:11
LINE 004 START 03:01 END 03:11
LINE 005 START 04:01 END 04:11
$
If you copy your script e.g. in a directory which is included in your $PATH variable you can execute it with
simply issuing "sgrep" (insted of "./sgrep"), just like you intended to do with the alias stuff.
Maybe try a shell function rather than a script or an alias...
Code:
$ function sgrep { sed ''/$1/s//`printf "\033[32m$1\033[0m"`/'' $2 ; }
$ sgrep START mylog
LINE 001 START 00:01 END 00:11
LINE 002 START 01:01 END 01:11
LINE 003 START 02:01 END 02:11
LINE 004 START 03:01 END 03:11
LINE 005 START 04:01 END 04:11
$ head -1 mylog | sgrep START
LINE 001 START 00:01 END 00:11
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