Well, what I want to achieve, well.. keep... is this:
Please understand that I'd like to replace the used echo with printf.
Code:
echo "this is piped" | print -
# | This is piped | #
And
Code:
echo this is piped | -
# | this is piped | #
Should be the same as:
Code:
echo "this is" "a piped" "test code"| printe -
# | this is a piped test code | #
Again, TUI was refering to echo, which is the reason it worked before.
With SWARM, I'd like to keep using 'printf' as internal core output, as I'm still under the impression that NOT ALL *nix flavors provide an actual echo command.
What I currently have is this:
Code:
echo " ----------- TEST AREA -----------"
## Core sanity
# swarm.sanity.env
header "SWARM ${SWARM[VERSION]}" " " "$DATE_TODAY : $DATE_TIME"
title "my title"
printe left middle right
printf '%q ' 1This is piped | printe -
printf '%q ' "2This is" "a piped" "test code" | printe -
printf '%s\n' "3This is" "a piped" "test code" | printe -
#ask "Is this cool?"
echo $?
#echo "$(swarm.help VERSION)"
#set +x
echo " ----------- TEST AREA -----------"
Which outputs to:
Code:
----------- TEST AREA -----------
# | SWARM 0.3 2020.03.13 : 15:16 | #
# | my title | #
# | left middle right | #
# | 1This is piped | #
# | 2This is a piped test code | #
# | 3This is | #
0
----------- TEST AREA -----------
So only the line where the text starts with 2 seems to be working as expected, or at least, as intended.
This said, true that, for multiple lines I'd need special handling- which I think worked 'out of the box' when I had used echo...
Now you tell me to use an 'echo' function, whereas in the feedback thread the commone-tone was to NOT use functions that are labeld as regular commands, such as specificly named 'echo'.
Regardless, if no echo exists, I could 'load' a function named echo, but that still doesnt make the use of printf in that echo-function work as I hoped it would.
On the other hand, if someone could correct me and tell me i'm wrong and therefor:
That echo exists on ALL *nix flavored systems - and not just 'on most'.
We'd all save time and headaches.
Specialy the multi-line piping would work right away...
This said, I'd rather try to write/set an $ECHO variable
OOOrr.... I'd simply remove the 3 orientations from the piping, and pretty sure this would help with multi-line pipes.
But thats like the easy way.
Strangley enough, the following produced borked output lines...
shift was required, as the first two lines had only '-' as their output, now, follow up lines miss the first entry, allthough all passed values started with the pipe indicator..
Code:
printe() { # STR1 STR2 STR3
# Simply prints the strings as passed, end with newline
# It requires 3 strings to use the center
case "$1" in
"--"|"-")
# Read pipe, expect one line
shift
while read LEFT CENTER RIGHT
do
set "${LEFT}" "$CENTER" "$RIGHT"
printe "$LEFT" "$CENTER" "$RIGTH"
done
;;
esac
swarm.print.border -e
swarm.print.text -e "$1" "$2" "$3"
$PRINTF "$posEND\n"
}
While this enables multi-line pipeing (from grep, cat, etc), it causes an error messages at some math point I need to find first, also no idea where this 'fg %s' comes from...
Code:
[sea@manjaro-desktop SWARM]$ time . ./runtime
........bash: fg: %s: no such job
TODO : swarm.sanity.env
.............bash: [[: ''1'': syntax error: operand expected (error token is "''1''")
----------- TEST AREA -----------
Well, the echo function didnt quite work as expected:
Code:
echo() { printf '%q ' "${@}";}
ECHO=echo_!
Code:
bash: echo_!: command not found
bash: echo_!: command not found
bash: echo_!: command not found
Any thoughts please?
Thank you
--- Post updated at 19:11 ---
No I mean, seriously... Im confused..
Which is true now?
Code:
[sea@manjaro-desktop SWARM]$ unset echo
[sea@manjaro-desktop SWARM]$ which echo
/usr/bin/echo
[sea@manjaro-desktop SWARM]$ type echo
echo is a shell builtin
Might this be the riddles solution?
Code:
[sea@manjaro-desktop SWARM]$ LC_ALL=C $(which echo) --help | grep -a3 NOTE
\0NNN byte with octal value NNN (1 to 3 digits)
\xHH byte with hexadecimal value HH (1 to 2 digits)
NOTE: your shell may have its own version of echo, which usually supersedes
the version described here. Please refer to your shell's documentation
for details about the options it supports.
Does that mean all BASH version have their own builtin echo?
But not all *nix flavors have a 'physical' echo-binary?
In which case, all of this threads would really be solved.
Sometimes you see things you havent all the times before....
i made a lot of processes. here is the code:
main()
{
printf("\nEnter K="); scanf("%d",&k);
printf("Enter L="); scanf("%d",&l);
printf("\nFather id=%d\n",getpid());
x=0;
makechild();
sleep(2);
return 1;
}
int makechild()
{
for(q=1;q<=k;q++)
{
if(f=fork())
{
... (5 Replies)
Hi,
I have a shell scripting. This will take 7 digit number in each line and add 7 digit number with next subsequent lines ( normal addition ).
Eg:
0000001
0000220
0001235
0000022
0000023
...........
.........
........
Like this i am having around 1500000 records. After adding... (23 Replies)
Hi I have a problem writing a c program that makes a telnet connection and writes some command.
The shell command is something like this:
------------------------------------------------------------------
>
>telnet 141.111.231.132 3300
ENTER COMMAND: login "<--- I' wirte a command (ex... (5 Replies)
Hi, guys:
I am working on my shell using c. How can I use pipe to implement the following?
ls -l 1>> | grep hellp 1<< 2>> | less 2<<
(the output of ls goes to grep, and the output of grep goes to less)
Thanks
Please use and tags when posting code, data or logs etc. to preserve... (1 Reply)
Hello everyone, I'm in need of some assistance. I'm currently enrolled in an introductory UNIX shell programming course and, well halfway through the semester, we are receiving our first actual assignment. I've somewhat realized now that I've fallen behind, and I'm working to get caught up, but for... (1 Reply)
Hi All,
I am using the below script which has awk command, but it is not returing the expected result. can some pls help me to correct the command.
The below script sample.ksh should give the result if the value of last 4 digits in the variable NM matches with the variable value DAT. The... (7 Replies)
Hi guys,
I need to know how i can ignore Pipe '|' if Pipe is coming as a column in Pipe delimited file
for eg:
file 1:
xx|yy|"xyz|zzz"|zzz|12...
using below awk command
awk 'BEGIN {FS=OFS="|" } print $3
i would get xyz
But i want as :
xyz|zzz to consider as whole column... (13 Replies)
Hello,
I have an ffmpeg bash script which is working nice and
I need to do the same for other sources.
To create new scripts and to deal with multiple bash files sounds not logical. It is a bit hard to manage for me..
I wondered if it was possible to make my input file as variable.
Then I... (1 Reply)
03-13-2020
