I haven't programed in C in a few years. I have been doing a lot of shell scripting, I.E. not really programming anything heavy.
That said, I have a script that gives hourly usage statistics for our email server. It runs w-a-y to slow as a script for my impatience, and needs to be converted to C. That and some Windows admins have expressed interest in it. Porting to C would be easier to cross compile that a script.
In the shell script I have an output function where I can pass text color, formatting (4.3f, 6s, etc.) and value.
Shell Code
Code:
output{
printf "\033[$1m%$2\033[0m" $3
}
Here's what I have in C so far.
Code:
int output(int clr,float val){ // Add in the format if possible
switch (clr) {
case 0: printf("%c[%dm %2.3f ", 0x1B, 33, val); // print Yellow (Lower than average usage)
break;
case 1: printf("%c[%dm %2.3f ", 0x1B, 32, val); // print Green (Medium)
break;
case 2: printf("%c[%dm %2.3f ", 0x1B, 31, val); // print Red (High)
break;
case 3: printf("%c[%dm %2.3f ", 0x1B, 0, val); // print White (All else)
break;
}
}
Is there a way to pass the format parameter as a variable? I.E. pearl uses something like this %${fmt}f. Can this be done in C?
There are 5 columns, each can have their own color, width, format(d,s,f...) and value.
Obviously, the colors won't show up here. But you get the idea.
A good place to start is simple variable passing....
Passing variables from one script to another
The next level is passing a variable into a more complex command such as using a variable in a sed command. There are some simple quoting techniques that are very general. These are mentioned... (0 Replies)
hi,
i am passing around 14 parameters for a script
a=$1
b=$2
c=$3
d=$4
e=$5
f=$6
g=$7
h=$8
i=\"${9}\"
shift
j=\"${1}\"
still for j it is displaying the 1st parameter value..how to make it take the 10th parameter (2 Replies)
Hi all,
My simple AWK code does C = A - B
If C can be a negative number, how awk printf formating handles it using string format specifier.
Thanks in advance
Kanu
:confused: (9 Replies)
seems simple but i've not been successfull in adding the value of a Variable to a every line of a file using AWK & printf
i've come up with the following, but it's not working.:mad:
--- mydatafile.dat
e.g. of data in file:
cau_actvty_fa_lrf.ksh
fan_soco_fa.ksh
ny_sum_lst.ksh... (4 Replies)
Hi I'm having a problem with converting a file:
ID X
1 7
1 8
1 3
2 5
2 7
2 2
To something like this:
ID X1 X2 X3
1 7 8 3
2 5 7 2
I've tried the following loop:
for i in `cat tst.csv| awk -F "," '{print $1}'| uniq`;do grep -h $i... (4 Replies)
Hi Friends,
I am trying to insert lines of the below format in a file:
# x3a4914 Joe 2010/04/07
# seh Lane 2010/04/07
# IN01379 Larry 2010/04/07
I am formatting the strings as follows using awk printf:
awk 'printf "# %s %9s %18s\n", $2,$3,$4}'
... (2 Replies)
Getting the below error while executing this. Able to run the below commands Individually.
#!/bin/bash
a=$(printf "%d\n" 0x01E);
b=$(printf "%d\n" 0x01A);
echo $a
echo $b
c=`expr $a - $b`
echo $c
syntax error at line 2: `a=$' unexpected (2 Replies)
Hi All,
I am attempting to create a fixed length tilde delimited file using printf.
The variables are initialized to fixed length blank spaces
a=' '
b=' '
c=' '
d=' '
Sometimes the variable might contain values and sometimes they are... (5 Replies)
Trying to do so
echo "111:222:333" |awk -F: '{system("export TESTO=" $2)}'But it doesn't work (2 Replies)
Discussion started by: urello
2 Replies
LEARN ABOUT XFREE86
git-sh-i18n
GIT-SH-I18N(1) Git Manual GIT-SH-I18N(1)NAME
git-sh-i18n - Git's i18n setup code for shell scripts
SYNOPSIS
. "$(git --exec-path)/git-sh-i18n"
DESCRIPTION
This is not a command the end user would want to run. Ever. This documentation is meant for people who are studying the Porcelain-ish
scripts and/or are writing new ones.
The 'git sh-i18n scriptlet is designed to be sourced (using .) by Git's porcelain programs implemented in shell script. It provides
wrappers for the GNU gettext and eval_gettext functions accessible through the gettext.sh script, and provides pass-through fallbacks on
systems without GNU gettext.
FUNCTIONS
gettext
Currently a dummy fall-through function implemented as a wrapper around printf(1). Will be replaced by a real gettext implementation in
a later version.
eval_gettext
Currently a dummy fall-through function implemented as a wrapper around printf(1) with variables expanded by the git-sh-
i18n--envsubst(1) helper. Will be replaced by a real gettext implementation in a later version.
GIT
Part of the git(1) suite
Git 2.17.1 10/05/2018 GIT-SH-I18N(1)
02-17-2014
Passing printf formatting parameters as variables
