nojhan
119bba5bb5
Use "random" as a color or a style to pick a random one for each pattern. Use "rainbow" as a color to alternate colors in rainbow gradient. Fix #1
3 KiB
colout(1) -- Color Up Arbitrary Command Ouput
SYNOPSIS
colout [-h] [-e] PATTERN [COLOR(S)] [STYLE(S)]
DESCRIPTION
colout read lines of text stream on the standard input and output characters
matching a given regular expression PATTERN in given and STYLE.
If groups are specified in the regular expression pattern, only them are taken into account, else the whole matching pattern is colored.
You can specify severall colors or styles when using groups by separating them with commas. If you indicate more colors than groups, the last ones will be ignored. If you ask for less colors, the last one will be duplicated across remaining groups.
Available colors are: blue, black, yellow, cyan, green, magenta, white, red, rainbow, random, or any number between 0 and 255.
Available styles are: normal, bold, faint, italic, underline, blink, rapid_blink, reverse, conceal or random.
When not specified, a COLOR defaults to red and a STYLE defaults to bold.
colout is released under the GNU Public License v3.
OPTIONS
-
-h,--help: Show an help message and exit -
-e,--stderr: Output on the standard error instead of standard output.
REGULAR EXPRESSIONS
A regular expression (or regex) is a pattern that describes a set of strings that matches it.
colout understands regex as specifed in the re python module. Given that
colout is generally called by the command line, you may have to escape
special characters that would be recognize by your shell.
EXAMPLES
-
Color in bold red every occurence of the word color in colout sources:
cat colout.py | colout color red bold -
Color in bold violet home directories in /etc/passwd:
colout /home/[a-z]+ 135 < /etc/passwd -
Use a different color for each line of the auth log
grep user /var/log/auth.log | colout "^.*$" rainbow -
Color in yellow user/groups id, in bold green name and in bold red home directories in /etc/passwd:
colout :x:\([0-9]+:[0-9]+\):\([a-z]+\).*\(/home/[a-z]+\) yellow,green,red normal,bold < /etc/passwd -
Color in yellow file permissions with read rights for everyone:
ls -l | colout .\(r.-\){3} yellow normal -
Color in green read permission, in bold red write and execution ones:
ls -l | colout \(r\)\(w*\)\(x*\) green,red normal,bold -
Color in green comments in colout sources:
colout .*\(#.*\)$ green normal < colout.py -
Color in light green comments in non-empty colout sources, with the sharp in bold green:
grep -v ^\\s*$ colout.py | colout .*\(#\)\(.*\)$ green,119 bold,normal -
Color in bold green every numbers and in bold red the words error in make output:
make 2>&1 | colout [0-9]+ green normal | colout error -
Color a make output, line numbers in yellow, errors in bold red, warning in magenta, pragma in green and C++ file base names in cyan:
make 2>&1 | colout :\([0-9]+\):[0-9]* yellow normal | colout error | colout warning magenta | colout pragma green normal | colout /\(\\w+\)*\.\(h\|cpp\) cyan normal