如何让tail -f显示彩色输出

#1 楼

multitail -c /path/to/log

colorscheme:amir_log
cs_re:green:INFO
cs_re:red:SEVERE

tail -f /path/to/log | awk '
  /INFO/ {print "3[32m" 
tail -f /path/to/log | sed --unbuffered \
    -e 's/\(.*INFO.*\)/\o033[32m\o033[39m/' \
    -e 's/\(.*SEVERE.*\)/\o033[31m\o033[39m/'
 "3[39m"}
  /SEVERE/ {print "3[31m" q4312078q "3[39m"}
'

#2 楼

#3 楼

$ tail -f myfile.log | perl -pe 's/.*SEVERE.*/\e[1;31m$&\e[0m/g'

#4 楼

#5 楼

rainbow --red='SEVERE.*' --green='INFO.*' tail -f my-file.log

rainbow --config=tomcat tail -f my-file.log

#6 楼

colortail -f /var/log/messages

#7 楼

#8 楼

# User specific aliases and functions
alias grep='grep --color=auto'

[root@linuxbox mydir]# grep "\(INFO\|SEVERE\)" /var/log/logname
this entry is an INFO 
SEVERE this entry is a warn!
this entry is an INFO
this entry is an INFO
SEVERE this entry is a warn!

[root@linubox mydir]# grep --color=always "\(INFO\|SEVERE\)" /var/log/logname | tail -f | awk '{ print  }'
this 
SEVERE
this
this
SEVERE

#9 楼

tail -f /var/log/syslog | colorex -G '[0-9]{2}:[0-9]{2}:[0-9]{2}' -b $(hostname)

#10 楼

#!/usr/bin/perl -w

while(<STDIN>) {
    my $line = $_;
    chomp($line);
    for($line){
        s/==>.*<==/\e[1;44m$&\e[0m/gi; #tail multiples files name in blue background
        s/.*exception.*|at .*/\e[0;31m$&\e[0m/gi;  #java errors & stacktraces in red
        s/info.*/\e[1;32m$&\e[0m/gi; #info replacement in green
        s/warning.*/\e[1;33m$&\e[0m/gi; #warning replacement in yellow
    }
    print $line, "\n";
}

tail -f *.log | perl colorTail.pl
tail -f *.log -f **/*.log | perl colorTail.pl

#11 楼

tail -f /var/log/logname | source-highlight -f esc -s log

#12 楼

pip install colout
myprocess | colout REGEX_WITH_GROUPS color1,color2... [attr1,attr2...]

tail -f /var/log/mylogfile | colout '^(\w+ \d+ [\d:]+)|(\w+\.py:\d+ .+\(\)): (.+)$' white,black,cyan bold,bold,normal

#13 楼

tail -f /var/log/syslog | txts --regex '\d+'

ifconfig | txts --name ifconfig

#14 楼

regexp=.*(select .*)$
colours=unchanged,cyan
=====
regexp=.*(update .*)$
colours=unchanged,bold yellow
=====
regexp=.*(insert .*)$
colours=unchanged,bold yellow
=====
regexp=.*(emp=\d+).*
colours=unchanged,reverse green
=====
regexp=.*http.*/rest/contahub.cmds.(.*?)/(\w*).*$
colours=unchanged,green,magenta
=====
regexp=.*http.*/M/.*\.(.*?Facade)/(\w*).*$
colours=unchanged,underline green,underline magenta

#15 楼

red=$( tput -Txterm setaf 1 )
norm=$( tput -Txterm sgr0 )
bold=$( tput -Txterm bold )

tail -F myfile.log | sed "s/\(.ERROR.*\)/$red$bold$norm/g"

#16 楼

#17 楼

setColors ()
{
set -a
which printf >/dev/null 2>&1 && print=printf || print=print # Mandriva doesn't know about printf

hide='eval tput civis'
show='eval tput cnorm'
CLS=$(tput clear)
bel=$(tput bel)

case ${UNAME} in
AIX)
# text / foreground
N=$(${print} '3[1;30m')
n=$(${print} '3[0;30m')
R=$(${print} '3[1;31m')
r=$(${print} '3[0;31m')
G=$(${print} '3[1;32m')
g=$(${print} '3[0;32m')
Y=$(${print} '3[1;33m')
y=$(${print} '3[0;33m')
B=$(${print} '3[1;34m')
b=$(${print} '3[0;34m')
M=$(${print} '3[1;35m')
m=$(${print} '3[0;35m')
C=$(${print} '3[1;36m')
c=$(${print} '3[0;36m')
W=$(${print} '3[1;37m')
w=$(${print} '3[0;37m')
END=$(${print} '3[0m')

# background
RN=$(${print} '3[6;40m')
Rn=$(${print} '3[40m')
RR=$(${print} '3[6;41m')
Rr=$(${print} '3[41m')
RG=$(${print} '3[6;42m')
Rg=$(${print} '3[42m')
RY=$(${print} '3[6;43m')
Ry=$(${print} '3[43m')
RB=$(${print} '3[6;44m')
Rb=$(${print} '3[44m')
RM=$(${print} '3[6;45m')
Rm=$(${print} '3[45m')
RC=$(${print} '3[6;46m')
Rc=$(${print} '3[46m')
RW=$(${print} '3[6;47m')
Rw=$(${print} '3[47m')

HIGH=$(tput bold)
SMUL=$(tput smul)
RMUL=$(tput rmul)
BLINK=$(tput blink)
REVERSE=$(tput smso)
REVERSO=$(tput rmso)
;;
*)
# text / foreground
n=$(tput setaf 0)
r=$(tput setaf 1)
g=$(tput setaf 2)
y=$(tput setaf 3)
b=$(tput setaf 4)
m=$(tput setaf 5)
c=$(tput setaf 6)
w=$(tput setaf 7)
N=$(tput setaf 8)
R=$(tput setaf 9)
G=$(tput setaf 10)
Y=$(tput setaf 11)
B=$(tput setaf 12)
M=$(tput setaf 13)
C=$(tput setaf 14)
W=$(tput setaf 15)
END=$(tput sgr0)

HIGH=$(tput bold)
SMUL=$(tput smul)
RMUL=$(tput rmul)
BLINK=$(tput blink)
REVERSE=$(tput smso)
REVERSO=$(tput rmso)

# background
Rn=$(tput setab 0)
Rr=$(tput setab 1)
Rg=$(tput setab 2)
Ry=$(tput setab 3)
Rb=$(tput setab 4)
Rm=$(tput setab 5)
Rc=$(tput setab 6)
Rw=$(tput setab 7)
RN=$(tput setab 8)
RR=$(tput setab 9)
RG=$(tput setab 10)
RY=$(tput setab 11)
RB=$(tput setab 12)
RM=$(tput setab 13)
RC=$(tput setab 14)
RW=$(tput setab 15)
;;
esac

BLUEf=${B}
BLUE=${b}
REDf=${R}
RED=${r}
GREENf=${G}
GREEN=${g}
YELLOWf=${Y}
YELLOW=${y}
MANGENTAf=${M}
MANGENTA=${m}
WHITEf=${W}
WHITE=${w}
CYANf=${C}
CYAN=${c}

OK="${RG}${n}OK${END}"
KO="${RR}${n}KO${END}"
NA="${N}NA${END}"

COLORIZE='eval sed -e "s/{END}/${END}/g" -e "s/{HIGH}/${HIGH}/g" -e "s/{SMUL}/${SMUL}/g" -e "s/{RMUL}/${RMUL}/g" -e "s/{BLINK}/${BLINK}/g" -e "s/{REVERSE}/${REVERSE}/g" -e "s/{REVERSO}/${REVERSO}/g"'
LOWS=' -e "s/{n}/${n}/g" -e "s/{r}/${r}/g" -e "s/{g}/${g}/g" -e "s/{y}/${y}/g" -e "s/{b}/${b}/g" -e "s/{m}/${m}/g" -e "s/{c}/${c}/g" -e "s/{w}/${w}/g"'
HIGHS=' -e "s/{N}/${N}/g" -e "s/{R}/${R}/g" -e "s/{G}/${G}/g" -e "s/{Y}/${Y}/g" -e "s/{B}/${B}/g" -e "s/{M}/${M}/g" -e "s/{C}/${C}/g" -e "s/{W}/${W}/g"'
REVLOWS=' -e "s/{Rn}/${Rn}/g" -e "s/{Rr}/${Rr}/g" -e "s/{Rg}/${Rg}/g" -e "s/{Ry}/${Ry}/g" -e "s/{Rb}/${Rb}/g" -e "s/{Rm}/${Rm}/g" -e "s/{Rc}/${Rc}/g" -e "s/{Rw}/${Rw}/g"'
REVHIGHS=' -e "s/{RN}/${RN}/g" -e "s/{RR}/${RR}/g" -e "s/{RG}/${RG}/g" -e "s/{RY}/${RY}/g" -e "s/{RB}/${RB}/g" -e "s/{RM}/${RM}/g" -e "s/{RC}/${RC}/g" -e "s/{RW}/${RW}/g"'
# COLORIZE Usage:
# command |${COLORIZE} ${LOWS} ${HIGHS} ${REVLOWS} ${REVHIGHS}

set +a
}

#18 楼

#19 楼

tail -f file | lch -red error warn -green success
lch -f file -red.bold error warn -underline.bgGreen success

#20 楼

yum install -y ccze
tail -f /var/log/file.log | ccze -A

#21 楼

tail -f -n 5 application.log debug.log| perl -pe 's#WARNING#\x1b[33m$&#; s#ERROR#\x1b[31m$&#; s#foo#\x1b[32m$&#'