Having a data set like below shown with (:)colon delimeted:
##L1
Advc:start:TA_Wk;TA_Wk:rstb:ver:trstb.techind_C3_D[0].RESETH:LK
##L2
ner:ted:Unused:C1500:ver:sync3rmsfd0nt_t;tape_out:SOCK0
I am using the column number's and I am attaching some strings to it using AWK.
And I am trying to ignore the COmments which encounter's with # and appending them at last.
#!/bin/bash
awk -F: '/^#/ {c=$0; sub(/#+/,"", c); next}
{print $1, "-f" " "$4, "-t" " "$6, "-d" " ""{"$3"}", "-t" " ""{"$7"}","-", "\"" c "\""}' s1
Output:
Advc -f rstb -t trstb.techind_C3_D[0].RESETH -d {TA_Wk;TA_Wk} -t {LK} - "L1"
-f -t -c {} -c {} - "L1"
ner -f C1500 -t sync3rmsfd0nt_t;tape_out -d {Unused} -t {SOCK0} - "L2"
Desired Output:
Advc -f rstb -t trstb.techind_C3_D[0].RESETH -d {TA_Wk;TA_Wk} -t {LK} - "L1"
ner -f C1500 -t sync3rmsfd0nt_t;tape_out -d {Unused} -t {SOCK0} - "L2"
1.In column 3 and column 7 if words like are "Unused", "Unspecified" then it should not print that particular column it should ignore along with the string attached to it as shown above in desired output.
2.HOw to remove empty lines.
How to fix above two conditions in my code as shown above?
OP's attempt fix: Fixed OP's attempt itself here. You need to skip empty lines to print your output correctly which you could do with simple if condition + I did minor changes in your attempt like changing sub to gsub in removing # part, setting : within BEGIN section + give variables well defined name so in place of c I changed it to val for better understanding.
awk 'BEGIN{FS=":"} /^$/{next} /^#/ {val=$0; gsub(/#/,"", val); next}
{print $1, "-f" " "$4, "-t" " "$6, \
($3!="Unused"?"-d" " ""{"$3"}":""),\
($7!="Unspecified"?"-t" " ""{"$7"}":""),"-", "\"" val "\""
}' s1="\"" Input_file
My attempt to solve this: Written and tested with shown samples in GNU awk.
awk '
BEGIN{
FS=":"
}
/^$/{
next
}
/^#/{
val=$0
gsub(/#/,"", val)
next
}
{
($3=$3!="Unused"?"-d" " ""{"$3"}":"")
($7=$7!="Unspecified"?"-t" " ""{"$7"}":"")
print $1, "-f" " "$4, "-t" " "$6, \
$3,\
$7,"-", "\"" val "\""
}' s1="\"" Input_file
Related
gawk 'BEGIN { FS="|"; OFS="|" }NR ==1 {print} NR >=2 {cmd1="echo -n "$2" | base64 -w 0";cmd1 | getline d1;close(cmd1); print $1,d1 }' dummy2.txt
input:
id|dummy
1|subhashree:1;user=phn
2|subha:2;user=phn
Expected output:
id|dummy
1|c3ViaGFzaHJlZToxO3VzZXI9cGhuCg==
2|c3ViaGE6Mjt1c2VyPXBobgo=
output produced by script:
id|dummy
1|subhashree:1
2|subha:2
I have understood that the double quote around $2 is causing the issue. It does not work hence not encoding the string properly and just stripping off the string after semi colon.Because it does work inside semicolon and gives proper output in terminal.
echo "subhashree:1;user=phn" | base64
c3ViaGFzaHJlZToxO3VzZXI9cGhuCg==
[root#DERATVIV04 encode]# echo "subha:2;user=phn" | base64
c3ViaGE6Mjt1c2VyPXBobgo=
I have tried with different variation with single and double quote inside awk but it does not work.Any help will be highly appreciated.
Thanks a lot in advance.
Your existing cmd1 producing
echo -n subhashree:1;user=phn | base64 -w 0
^ semicolon is there
So if you execute below would produce
$ echo -n subhashree:1;user=phn | base64 -w 0
subhashree:1
With quotes
$ echo -n 'subhashree:1;user=phn' | base64 -w 0
c3ViaGFzaHJlZToxO3VzZXI9cGhu
Solution is just to use quotes before echo -n '<your-string>' | base64 -w 0
$ cat file
id|dummy
1|subhashree:1;user=phn
2|subha:2;user=phn
$ gawk -v q="'" 'BEGIN { FS="|"; OFS="|" }NR ==1 {print} NR >=2 {cmd1="echo -n " q $2 q" | base64 -w 0"; cmd1 | getline d1;close(cmd1); print $1,d1 }' file
id|dummy
1|c3ViaGFzaHJlZToxO3VzZXI9cGhu
2|c3ViaGE6Mjt1c2VyPXBobg==
It can be simplified as below
gawk -v q="'" 'BEGIN {
FS=OFS="|"
}
NR==1{
print;
next
}
{
cmd1="echo -n " q $2 q" | base64 -w 0";
print ((cmd1 | getline d1)>0)? $1 OFS d1 : $0;
close(cmd1);
}
' file
Based on Ed Morton recommendation http://awk.freeshell.org/AllAboutGetline
if/while ( (getline var < file) > 0)
if/while ( (command | getline var) > 0)
if/while ( (command |& getline var) > 0)
The problem is because of lack of quotes, when trying to run the echo command in shell context. What you are trying to do is basically converted into
echo -n subhashree:1;user=phn | base64 -w 0
which the shell has executed as two commands separated by ; i.e. user=phn | base64 -w 0 means an assignment followed by a pipeline, which would be empty because the assignment would not produce any result over standard input for base64 for encode. The other segment subhashree:1 is just echoed out, which is stored in your getline variable d1.
The right approach fixing your problem should be using quotes
echo -n "subhashree:1;user=phn" | base64 -w 0
When you said, you were using quotes to $2, that is not actually right, the quotes are actually used in the context of awk to concatenate the cmd string i.e. "echo -n ", $2 and " | base64 -w 0" are just joined together. The proposed double quotes need to be in the context of the shell.
SO with that and few other fixes, your awk command should be below. Added gsub() to remove trailing spaces, which were present in your input shown. Also used printf over echo.
awk -v FS="|" '
BEGIN {
OFS = FS
}
NR == 1 {
print
}
NR >= 2 {
gsub(/[[:space:]]+/, "", $2)
cmd = "printf \"%s\" \"" $2 "\" | base64 -w 0"
if ((cmd | getline result) > 0) {
$2 = result
}
close(cmd)
print
}
' file
So with the command above, your command is executed as below, which would produce the right result.
printf "%s" "subhashree:1;user=phn" | base64 -w 0
You already got answers explaining how to use awk for this but you should also consider not using awk for this. The tool to sequence calls to other commands (e.g. bas64) is a shell, not awk. What you're trying to do in terms of calls is:
shell { awk { loop_on_input { shell { base64 } } } }
whereas if you call base64 directly from shell it'd just be:
shell { loop_on_input { base64 } }
Note that the awk command is spawning a new subshell once per line of input while the direct call from shell isn't.
For example:
#!/usr/bin/env bash
file='dummy2.txt'
head -n 1 "$file"
while IFS='|' read -r id dummy; do
printf '%s|%s\n' "$id" "$(base64 -w 0 <<<"$dummy")"
done < <(tail -n +2 "$file")
Here's the difference in execution speed for an input file that has each of your data lines duplicated 100 times created by awk -v n=100 'NR==1{print; next} {for (i=1;i<=n;i++) print}' dummy2.txt > file100
$ ./tst.sh file100
Awk:
real 0m23.247s
user 0m3.755s
sys 0m10.966s
Shell:
real 0m14.512s
user 0m1.530s
sys 0m4.776s
The above timing was produced by running this command (both awk scripts posted in answers will have about the same timeing so I just picked one at random):
#!/usr/bin/env bash
doawk() {
local file="$1"
gawk -v q="'" 'BEGIN {
FS=OFS="|"
}
NR==1{
print;
next
}
{
cmd1="echo -n " q $2 q" | base64 -w 0";
print ((cmd1 | getline d1)>0)? $1 OFS d1 : $0;
close(cmd1);
}
' "$file"
}
doshell() {
local file="$1"
head -n 1 "$file"
while IFS='|' read -r id dummy; do
printf '%s|%s\n' "$id" "$(base64 -w 0 <<<"$dummy")"
done < <(tail -n +2 "$file")
}
# Use 3rd-run timing to eliminate cache-ing as a factor
doawk "$1" >/dev/null
doawk "$1" >/dev/null
echo "Awk:"
time doawk "$1" >/dev/null
echo ""
doshell "$1" >/dev/null
doshell "$1" >/dev/null
echo "Shell:"
time doshell "$1" >/dev/null
I'm trying to check if a multi-line string exists in a file using common bash commands (grep, awk, ...).
I want to have a file with a few lines, plain lines, not patterns, that should exists in another file and create a command (sequence) that checks if it does. If grep could accept arbitrary multiline patterns, I'd do it with something similar to
grep "`cat contentfile`" targetfile
As with grep I'd like to be able to check the exit code from the command. I'm not really interested in the output. Actually no output would be preferred since then I don't have to pipe to /dev/null.
I've searched for hints, but can't come up with a search that gives any good hits. There's How can I search for a multiline pattern in a file?, but that is about pattern matching.
I've found pcre2grep, but need to use "standard" *nix tools.
Example:
contentfile:
line 3
line 4
line 5
targetfile:
line 1
line 2
line 3
line 4
line 5
line 6
This should match and return 0 since the sequence of lines in the content file is found (in the exact same order) in the target file.
EDIT: Sorry for not being clear about the "pattern" vs. "string" comparison and the "output" vs. "exit code" in the previous versions of this question.
You didn't say if you wanted a regexp match or string match and we can't tell since you named your search file "patternfile" and a "pattern" could mean anything and at one point you imply you want to do a string match (check if a multi-line _string_ exists) but then you're using grep and pcregpre with no stated args for string rather than regexp matches.
In any case, these will do whatever it is you want using any awk (which includes POSIX standard awk and you said you wanted to use standard UNIX tools) in any shell on every UNIX box:
For a regexp match:
$ cat tst.awk
NR==FNR { pat = pat $0 ORS; next }
{ tgt = tgt $0 ORS }
END {
while ( match(tgt,pat) ) {
printf "%s", substr(tgt,RSTART,RLENGTH)
tgt = substr(tgt,RSTART+RLENGTH)
}
}
$ awk -f tst.awk patternfile targetfile
line 3
line 4
line 5
For a string match:
$ cat tst.awk
NR==FNR { pat = pat $0 ORS; next }
{ tgt = tgt $0 ORS }
END {
lgth = length(pat)
while ( beg = index(tgt,pat) ) {
printf "%s", substr(tgt,beg,lgth)
tgt = substr(tgt,beg+lgth)
}
}
$ awk -f tst.awk patternfile targetfile
line 3
line 4
line 5
Having said that, with GNU awk you could do the following if you're OK with a regexp match and backslash interpretation of the patternfile contents (so \t is treated as a literal tab):
$ awk -v RS="$(cat patternfile)" 'RT!=""{print RT}' targetfile
line 3
line 4
line 5
or with GNU grep:
$ grep -zo "$(cat patternfile)" targetfile | tr '\0' '\n'
line 3
line 4
line 5
There are many other options depending on what kind of match you're really trying to do and which tools versions you have available.
EDIT: Since OP needs outcome of command in form of true or false(yes or no), so edited command in that manner now(created and tested in GNU awk).
awk -v message="yes" 'FNR==NR{a[$0];next} ($0 in a){if((FNR-1)==prev){b[++k]=$0} else {delete b;k=""}} {prev=FNR}; END{if(length(b)>0){print message}}' patternfile targetfile
Could you please try following, tested with given samples and it should print all continuous lines from pattern file if they are coming in same order in target file(count should be at least 2 for continuous lines in this code).
awk '
FNR==NR{
a[$0]
next
}
($0 in a){
if((FNR-1)==prev){
b[++k]=$0
}
else{
delete b
k=""
}
}
{
prev=FNR
}
END{
for(j=1;j<=k;j++){
print b[j]
}
}' patternfile targetfile
Explanation: Adding explanation for above code here.
awk ' ##Starting awk program here.
FNR==NR{ ##FNR==NR will be TRUE when first Input_file is being read.
a[$0] ##Creating an array a with index $0.
next ##next will skip all further statements from here.
}
($0 in a){ ##Statements from here will will be executed when 2nd Input_file is being read, checking if current line is present in array a.
if((FNR-1)==prev){ ##Checking condition if prev variable is equal to FNR-1 value then do following.
b[++k]=$0 ##Creating an array named b whose index is variable k whose value is increment by 1 each time it comes here.
}
else{ ##Mentioning else condition here.
delete b ##Deleting array b here.
k="" ##Nullifying k here.
}
}
{
prev=FNR ##Setting prev value as FNR value here.
}
END{ ##Starting END section of this awk program here.
for(j=1;j<=k;j++){ ##Starting a for loop here.
print b[j] ##Printing value of array b whose index is variable j here.
}
}' patternfile targetfile ##mentioning Input_file names here.
another solution in awk:
echo $(awk 'FNR==NR{ a[$0]; next}{ x=($0 in a)?x+1:0 }x==length(a){ print "OK" }' patternfile targetfile )
This returns "OK" if there is a match.
a one-liner:
$ if [ $(diff --left-column -y patternfile targetfile | grep '(' -A1 -B1 | tail -n +2 | head -n -1 | wc -l) == $(cat patternfile | wc -l) ]; then echo "ok"; else echo "error"; fi
explanation:
first is to compare the two files using diff:
diff --left-column -y patternfile targetfile
> line 1
> line 2
line 3 (
line 4 (
line 5 (
> line 6
then filter to show only interesting lines, which are the lines the '(', plus extra 1-line before, and after match, to check if lines in patternfile match without a break.
diff --left-column -y patternfile targetfile | grep '(' -A1 -B1
> line 2
line 3 (
line 4 (
line 5 (
> line 6
Then leave out the first, and last line:
diff --left-column -y patternfile targetfile | grep '(' -A1 -B1 | tail -n +2 | head -n -1
line 3 (
line 4 (
line 5 (
add some code to check if the number of lines match the number of lines in the patternfile:
if [ $(diff --left-column -y patternfile targetfile | grep '(' -A1 -B1 | tail -n +2 | head -n -1 | grep '(' | wc -l) == $(cat patternfile | wc -l) ]; then echo "ok"; else echo "error"; fi
ok
to use this with a return-code, a script could be created like this:
#!/bin/bash
patternfile=$1
targetfile=$2
if [ $(diff --left-column -y $patternfile $targetfile | grep '(' -A1 -B1 | tail -n +2 | head -n -1 | grep '(' | wc -l) == $(cat $patternfile | wc -l) ];
then
exit 0;
else
exit 1;
fi
The test (when above script is named comparepatterns):
$ comparepatterns patternfile targgetfile
echo $?
0
The easiest way to do this is to use a sliding window. First you read the pattern file, followed by file to search.
(FNR==NR) { a[FNR]=$0; n=FNR; next }
{ b[FNR]=$0 }
(FNR >= n) { for(i=1; i<=n;++i) if (a[i] != b[FNR-n+i]) { delete b[FNR-n+1]; next}}
{ print "match at", FNR-n+1}
{ r=1}
END{ exit !r}
which you call as
awk -f script.awk patternFile searchFile
Following up on a comment from Cyrus, who pointed to How to know if a text file is a subset of another, the following Python one-liner does the trick
python -c "content=open('content').read(); target=open('target').read(); exit(0 if content in target else 1);"
Unless you're talking about 10 GB+, here's an awk-based solution that's fast and clean :
mawk '{ exit NF==NR }' RS='^$' FS="${multiline_pattern}"
The pattern exists only in the file "${m2p}"
which is embedded within multi-file pipeline of 1st test,
but not 2nd one
This solution, for now, doesn't auto handle instances where regex meta-character escaping is needed. Alter it as you see fit.
Unless the pattern occurs far too often, it might even save time to do it all at once instead of having to check line-by-line, including saving lines along the way in some temp pattern space.
NR is always 1 there since RS is forced to the tail end of the input. NF is larger than 1 only when the pattern is found. By evaluating exit NF == NR, it inverts the match, thus matching structure of posix exit codes.
% echo; ( time ( \
\
echo "\n\n multi-line-pattern :: \n\n " \
"-------------\n${multiline_pattern}\n" \
" -----------\n\n " \
"$( nice gcat "${m2m}" "${m3m}" "${m3l}" "${m2p}" \
"${m3r}" "${m3supp}" "${m3t}" | pvE0 \
\
| mawk2 '{ exit NF == NR
}' RS = '^$' \
FS = "${multiline_pattern}" \
\
) exit code : ${?} " ) ) | ecp
in0: 3.10GiB 0:00:01 [2.89GiB/s] [2.89GiB/s] [ <=> ]
( echo ; ) 0.77s user 1.74s system 110% cpu 2.281 total
multi-line-pattern ::
-------------
77138=1159=M
77138=1196=M
77138=1251=M
77138=1252=M
77138=4951=M
77138=16740=M
77138=71501=M
-----------
exit code : 0
% echo; ( time ( \
\
echo "\n\n multi-line-pattern :: \n\n " \
"-------------\n${multiline_pattern}\n" \
" -----------\n\n " \
"$( nice gcat "${m2m}" "${m3m}" "${m3l}" \
"${m3r}" "${m3supp}" "${m3t}" | pvE0 \
\
| mawk2 '{ exit NF == NR
}' RS = '^$' \
FS = "${multiline_pattern}" \
\
) exit code : ${?} " ) ) | ecp
in0: 2.95GiB 0:00:01 [2.92GiB/s] [2.92GiB/s] [ <=> ]
( echo ; ) 0.64s user 1.65s system 110% cpu 2.074 total
multi-line-pattern ::
-------------
77138=1159=M
77138=1196=M
77138=1251=M
77138=1252=M
77138=4951=M
77138=16740=M
77138=71501=M
-----------
exit code : 1
If your pattern is the full file, then something like this - even when using the full file as a single gigantic 153 MB pattern, it finished in less than 2.4 secs against ~3 GB input.
echo
( time ( nice gcat "${m2m}" "${m3m}" "${m3l}" "${m3r}" "${m3supp}" "${m3t}" | pvE0 \
\
| mawk2 -v pattern_file="${m2p}" '
BEGIN {
RS = "^$"
getline FS < pattern_file
close(pattern_file)
} END {
exit NF == NR }' ; echo "\n\n exit code :: $?\n\n" ))|ecp;
du -csh "${m2p}" ;
( time ( nice gcat "${m2m}" "${m3m}" "${m3l}" \
"${m2p}" "${m3r}" "${m3supp}" "${m3t}" | pvE0 \
\
| mawk2 -v pattern_file="${m2p}" '
BEGIN {
RS = "^$"
getline FS < pattern_file
close(pattern_file)
} END {
exit NF == NR }' ; echo "\n\n exit code :: $?\n\n" ))|ecp;
in0: 2.95GiB 0:00:01 [2.58GiB/s] [2.58GiB/s] [ <=> ]
( nice gcat "${m2m}" "${m3m}" "${m3l}" "${m3r}" "${m3supp}" "${m3t}" | pvE 0.)
0.82s user 1.71s system 111% cpu 2.260 total
exit code :: 1
153M /Users/************/m2map_main.txt
153M total
in0: 3.10GiB 0:00:01 [2.56GiB/s] [2.56GiB/s] [ <=> ]
( nice gcat "${m2m}" "${m3m}" "${m3l}" "${m2p}" "${m3r}" "${m3supp}" "${m3t}")
0.83s user 1.79s system 112% cpu 2.339 total
exit code :: 0
Found a portable solution using patch command. The idea is to create a diff/patch in remove direction and check if it could be applied to the source file. Sadly there is no option for a dry-run (in my old patch version). So we've to do the patch and remove the temporary files.
The shell part around is optimized for my ksh usage:
file_in_file() {
typeset -r vtmp=/tmp/${0%.sh}.$$.tmp
typeset -r vbasefile=$1
typeset -r vcheckfile=$2
typeset -ir vlines=$(wc -l < "$vcheckfile")
{ echo "1,${vlines}d0"; sed 's/^/< /' "$vcheckfile"; } |
patch -fns -F0 -o "$vtmp" "$vbasefile" >/dev/null 2>&1
typeset -ir vrc=$?
rm -f "$vtmp"*
return $vrc
}
Explanation:
set variables for local usage (on newer bash you should use declare instead)
count lines of input file
create a patch/diff file in-memory (the line with the curly brackets)
use patch with strict settings patch -F0
cleanup (also eventually created reject files: rm -f "$vtmp"*)
return RC of patch
I am very new to awk so apologies for this question.
I have made a script with lots of awk commands (called it "myscript.awk", e.g:
awk -v f=5 -v t=62 '{ for (i=f; i<=t;i++) printf("%s%s", $i,(i==t) ? "\n" : OFS = "\t") }' myfiles > testa3.maf
awk -v f=1 -v t=4 '{ for (i=f; i<=t;i++) printf("%s%s", $i,(i==t) ? "\n" : OFS = "\t") }' myfiles > testa4.maf
paste testa3.maf testa4.maf > myfiles.txt
This is just an example, but the real script has a lot of other awk commands as well. I now want to pass this to thousands of files, so it applies these commands to all the files.
I've tried assigning my file to a variable (as I have shown in the script as myfile) and ran as such:
awk -v myfiles="test.maf" -f myscript.awk
But I am getting a syntax error. I must be doing something very wrong!
Thanks
You need to distinguish a shell script from an awk script. In your case,
awk -v f=1 -v t=4 '{ for (i=f; i<=t;i++) printf("%s%s", $i,(i==t) ? "\n" : OFS = "\t") }' testa.maf > testa4.maf
is a shell command. The three commands you posted are a shell script. This is an awk script that the above shell script is executing:
{ for (i=f; i<=t;i++) printf("%s%s", $i,(i==t) ? "\n" : OFS = "\t") }
If you named that script script.awk. you could execute it using awk -v f=1 -v t=4 -f script.awk. Shell scripts are not executed by awk, but (typically) by sh or bash.
Shell scripts can also have variables, but they function differently than awk variables. Specifically, if you want that shell script to have a variable for the output file, you could do this:
file="$1"
awk -v f=5 -v t=62 '{ for (i=f; i<=t;i++) printf("%s%s", $i,(i==t) ? "\n" : OFS = "\t") }' $file > testa3.maf
awk -v f=1 -v t=4 '{ for (i=f; i<=t;i++) printf("%s%s", $i,(i==t) ? "\n" : OFS = "\t") }' testa.maf > testa4.maf
paste testa3.maf testa4.maf > $file.txt
Here, $1 is the first passed parameter; then you can call your script:
bash script.sh test.maf
I am computing average of many values and printing it using awk using following script.
for j in `ls *.txt`; do
for i in emptyloop dd cp sleep10 gpid forkbomb gzip bzip2; do
echo -n $j $i" "; cat $j | grep $i | awk '{ sum+=$2} END {print sum/NR}'
done;
echo ""
done
but problem is, it is printing the value in in 1.2345e+05, which I do not want, I want it to print values in round figure. but I am unable to find where to pass the output format.
EDIT: using {print "average,%3d = ",sum/NR}' inplace of {print sum/NR}' is not helping, because it is printing "average,%3d 1.2345e+05".
You need printf instead of simply print. Print is a much simpler routine than printf is.
for j in *.txt; do
for i in emptyloop dd cp sleep10 gpid forkbomb gzip bzip2; do
awk -v "i=$i" -v "j=$j" '$0 ~ i {sum += $2} END {printf j, i, "average %6d", sum/NR}' "$j"
done
echo
done
You don't need ls - a glob will do.
Useless use of cat.
Quote all variables when they are expanded.
It's not necessary to use echo - AWK can do the job.
It's not necessary to use grep - AWK can do the job.
If you're getting numbers like 1.2345e+05 then %6d might be a better format string than %3d. Use printf in order to use format strings - print doesn't support them.
The following all-AWK script might do what you're looking for and be quite a bit faster. Without seeing your input data I've made a few assumptions, primarily that the command name being matched is in column 1.
awk '
BEGIN {
cmdstring = "emptyloop dd cp sleep10 gpid forkbomb gzip bzip2";
n = split(cmdstring, cmdarray);
for (i = 1; i <= n; i++) {
cmds[cmdarray[i]]
}
}
$1 in cmds {
sums[$1, FILENAME] += $2;
counts[$1, FILENAME]++
files[FILENAME]
}
END {
for file in files {
for cmd in cmds {
printf "%s %s %6d", file, cmd, sums[cmd, file]/counts[cmd, file]
}
}
}' *.txt
This file has 3 fields. I wanted e.g. the first 2 fields in green, and the third in white (NB : black background), so I tried :
awk '{print "\033[0;32m"$1"\033[0m", "\033[0;32m"$2"\033[0m", "\033[0;37m"$3"\033[0m"} }' chrono.txt
and everything was green…
How must I proceed (if it is possible) ?
To get color output from awk, you can use this approach.
function red(s) {
printf "\033[1;31m" s "\033[0m "
}
function green(s) {
printf "\033[1;32m" s "\033[0m "
}
function blue(s) {
printf "\033[1;34m" s "\033[0m "
}
{
print red($1), green($2), blue($3)
}
An alternative to using awk functions is passing the colors in shell variables. E.g.
RED='\033[01;31m'
GREEN='\033[01;32m'
YELLOW='\033[01;33m'
BLUE='\033[01;34m'
NONE='\033[0m'
echo "Col1 Col2 Col3 Col4" | \
awk -v r=$RED -v y=$YELLOW -v g=$GREEN -v b=$BLUE -v n=$NONE \
'{printf r$1n y$2n g$3n b$4n "\n"}'