KSH script emulating GNU 'ls' command returns only one result when parameter is used












0














I've been trying to utilize this script given to me to highlight directories and other files on an AIX box...



Using:



/script/location/directory/lsc.sh -la



works fine. Highlights everything properly, etc.



Using:



/script/location/directory/lsc.sh -la *specific_parameter*



returns only the first record that matches with the parameter and none of the others(which there is at least a dozen or so actual matches).



My experience with shell scripting is lacking a bit in comparison to other languages I use. I'm not sure if it's something obvious or not that is causing it to only return the one result and what a possible solution would be to allow proper ls-like functionality.



Any suggestions? Thank you in advance for your time and help.



Below is the script itself:



#!/bin/ksh

#***************************************************************************
#***************************************************************************
#* Check to see if any parameters were passed. If not, just list files. *
#***************************************************************************
if [[ $1 = "" || $(echo $1|cut -b1) = "/" ]]
then
ls $1
exit 0
fi


#***************************************************************************
#* Issue ls with parameters, send to a tmp file *
#* $1 is any ls parameters - ie -la *
#* $2 may be a directory other than CWD - ie /etc *
#* the grep -v is in case this is issued in home dir - we dont want to see *
#* our tmp file since it will be deleted when this script finishes. *
#***************************************************************************
ls $1 $2 | grep -v $$.tmp >> ${HOME}/$$.tmp

#***************************************************************************
#* Process the file. *
#* If dir: blue, link: light blue, char/block device: inverse blue, white *
#* socket: red, everything else: no color *
#***************************************************************************
while read LINE
do
TYPE=$(echo $LINE|cut -b1)
case $TYPE in
d) echo "33[0;91m$LINE33[0m" ;;
l) echo "33[0;92m$LINE33[0m" ;;
[cb]) echo "33[44;37m$LINE33[0m" ;;
s) echo "33[0;31m$LINE33[0m" ;;
-) if [[ $(echo $LINE|cut -b4) = "x" ||
$(echo $LINE|cut -b7) = "x" ||
$(echo $LINE|cut -b10) = "x" ]]
then
echo "33[0;96m$LINE33[0m"
else
echo "33[0m$LINE"
fi ;;
*) echo "33[0m$LINE" ;;
esac
done < ${HOME}/$$.tmp

#***************************************************************************
#* Clean up the tmp file *
#***************************************************************************
rm ${HOME}/$$.tmp









share|improve this question


















  • 1




    This script is broken. Return it to the vendor and ask your money back.
    – Lorinczy Zsigmond
    Nov 19 '18 at 16:58
















0














I've been trying to utilize this script given to me to highlight directories and other files on an AIX box...



Using:



/script/location/directory/lsc.sh -la



works fine. Highlights everything properly, etc.



Using:



/script/location/directory/lsc.sh -la *specific_parameter*



returns only the first record that matches with the parameter and none of the others(which there is at least a dozen or so actual matches).



My experience with shell scripting is lacking a bit in comparison to other languages I use. I'm not sure if it's something obvious or not that is causing it to only return the one result and what a possible solution would be to allow proper ls-like functionality.



Any suggestions? Thank you in advance for your time and help.



Below is the script itself:



#!/bin/ksh

#***************************************************************************
#***************************************************************************
#* Check to see if any parameters were passed. If not, just list files. *
#***************************************************************************
if [[ $1 = "" || $(echo $1|cut -b1) = "/" ]]
then
ls $1
exit 0
fi


#***************************************************************************
#* Issue ls with parameters, send to a tmp file *
#* $1 is any ls parameters - ie -la *
#* $2 may be a directory other than CWD - ie /etc *
#* the grep -v is in case this is issued in home dir - we dont want to see *
#* our tmp file since it will be deleted when this script finishes. *
#***************************************************************************
ls $1 $2 | grep -v $$.tmp >> ${HOME}/$$.tmp

#***************************************************************************
#* Process the file. *
#* If dir: blue, link: light blue, char/block device: inverse blue, white *
#* socket: red, everything else: no color *
#***************************************************************************
while read LINE
do
TYPE=$(echo $LINE|cut -b1)
case $TYPE in
d) echo "33[0;91m$LINE33[0m" ;;
l) echo "33[0;92m$LINE33[0m" ;;
[cb]) echo "33[44;37m$LINE33[0m" ;;
s) echo "33[0;31m$LINE33[0m" ;;
-) if [[ $(echo $LINE|cut -b4) = "x" ||
$(echo $LINE|cut -b7) = "x" ||
$(echo $LINE|cut -b10) = "x" ]]
then
echo "33[0;96m$LINE33[0m"
else
echo "33[0m$LINE"
fi ;;
*) echo "33[0m$LINE" ;;
esac
done < ${HOME}/$$.tmp

#***************************************************************************
#* Clean up the tmp file *
#***************************************************************************
rm ${HOME}/$$.tmp









share|improve this question


















  • 1




    This script is broken. Return it to the vendor and ask your money back.
    – Lorinczy Zsigmond
    Nov 19 '18 at 16:58














0












0








0


1





I've been trying to utilize this script given to me to highlight directories and other files on an AIX box...



Using:



/script/location/directory/lsc.sh -la



works fine. Highlights everything properly, etc.



Using:



/script/location/directory/lsc.sh -la *specific_parameter*



returns only the first record that matches with the parameter and none of the others(which there is at least a dozen or so actual matches).



My experience with shell scripting is lacking a bit in comparison to other languages I use. I'm not sure if it's something obvious or not that is causing it to only return the one result and what a possible solution would be to allow proper ls-like functionality.



Any suggestions? Thank you in advance for your time and help.



Below is the script itself:



#!/bin/ksh

#***************************************************************************
#***************************************************************************
#* Check to see if any parameters were passed. If not, just list files. *
#***************************************************************************
if [[ $1 = "" || $(echo $1|cut -b1) = "/" ]]
then
ls $1
exit 0
fi


#***************************************************************************
#* Issue ls with parameters, send to a tmp file *
#* $1 is any ls parameters - ie -la *
#* $2 may be a directory other than CWD - ie /etc *
#* the grep -v is in case this is issued in home dir - we dont want to see *
#* our tmp file since it will be deleted when this script finishes. *
#***************************************************************************
ls $1 $2 | grep -v $$.tmp >> ${HOME}/$$.tmp

#***************************************************************************
#* Process the file. *
#* If dir: blue, link: light blue, char/block device: inverse blue, white *
#* socket: red, everything else: no color *
#***************************************************************************
while read LINE
do
TYPE=$(echo $LINE|cut -b1)
case $TYPE in
d) echo "33[0;91m$LINE33[0m" ;;
l) echo "33[0;92m$LINE33[0m" ;;
[cb]) echo "33[44;37m$LINE33[0m" ;;
s) echo "33[0;31m$LINE33[0m" ;;
-) if [[ $(echo $LINE|cut -b4) = "x" ||
$(echo $LINE|cut -b7) = "x" ||
$(echo $LINE|cut -b10) = "x" ]]
then
echo "33[0;96m$LINE33[0m"
else
echo "33[0m$LINE"
fi ;;
*) echo "33[0m$LINE" ;;
esac
done < ${HOME}/$$.tmp

#***************************************************************************
#* Clean up the tmp file *
#***************************************************************************
rm ${HOME}/$$.tmp









share|improve this question













I've been trying to utilize this script given to me to highlight directories and other files on an AIX box...



Using:



/script/location/directory/lsc.sh -la



works fine. Highlights everything properly, etc.



Using:



/script/location/directory/lsc.sh -la *specific_parameter*



returns only the first record that matches with the parameter and none of the others(which there is at least a dozen or so actual matches).



My experience with shell scripting is lacking a bit in comparison to other languages I use. I'm not sure if it's something obvious or not that is causing it to only return the one result and what a possible solution would be to allow proper ls-like functionality.



Any suggestions? Thank you in advance for your time and help.



Below is the script itself:



#!/bin/ksh

#***************************************************************************
#***************************************************************************
#* Check to see if any parameters were passed. If not, just list files. *
#***************************************************************************
if [[ $1 = "" || $(echo $1|cut -b1) = "/" ]]
then
ls $1
exit 0
fi


#***************************************************************************
#* Issue ls with parameters, send to a tmp file *
#* $1 is any ls parameters - ie -la *
#* $2 may be a directory other than CWD - ie /etc *
#* the grep -v is in case this is issued in home dir - we dont want to see *
#* our tmp file since it will be deleted when this script finishes. *
#***************************************************************************
ls $1 $2 | grep -v $$.tmp >> ${HOME}/$$.tmp

#***************************************************************************
#* Process the file. *
#* If dir: blue, link: light blue, char/block device: inverse blue, white *
#* socket: red, everything else: no color *
#***************************************************************************
while read LINE
do
TYPE=$(echo $LINE|cut -b1)
case $TYPE in
d) echo "33[0;91m$LINE33[0m" ;;
l) echo "33[0;92m$LINE33[0m" ;;
[cb]) echo "33[44;37m$LINE33[0m" ;;
s) echo "33[0;31m$LINE33[0m" ;;
-) if [[ $(echo $LINE|cut -b4) = "x" ||
$(echo $LINE|cut -b7) = "x" ||
$(echo $LINE|cut -b10) = "x" ]]
then
echo "33[0;96m$LINE33[0m"
else
echo "33[0m$LINE"
fi ;;
*) echo "33[0m$LINE" ;;
esac
done < ${HOME}/$$.tmp

#***************************************************************************
#* Clean up the tmp file *
#***************************************************************************
rm ${HOME}/$$.tmp






shell unix ksh ls






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share|improve this question










asked Nov 19 '18 at 16:41









Luke Liddell

32




32








  • 1




    This script is broken. Return it to the vendor and ask your money back.
    – Lorinczy Zsigmond
    Nov 19 '18 at 16:58














  • 1




    This script is broken. Return it to the vendor and ask your money back.
    – Lorinczy Zsigmond
    Nov 19 '18 at 16:58








1




1




This script is broken. Return it to the vendor and ask your money back.
– Lorinczy Zsigmond
Nov 19 '18 at 16:58




This script is broken. Return it to the vendor and ask your money back.
– Lorinczy Zsigmond
Nov 19 '18 at 16:58












1 Answer
1






active

oldest

votes


















1














Not a great script, but then you are not using it like it was intented to work IMHO.



/script/location/directory/lsc.sh -la


$1: -la

$2: nothing




/script/location/directory/lsc.sh -la *something*


The shell does wildcard expansion like this:



/script/location/directory/lsc.sh -la 1something1 2something2 3something3 ...


So wildcard expansion happends before the script is called.



Therefore, with that last call of lsc.sh:



$1: -la

$2: 1something1



and the script does ls $1 $2 so only the first directory is processed, which is what you see.





If you want it to process all arguments, after wildcard expansion, replace:



ls $1 $2 | grep -v $$.tmp >> ${HOME}/$$.tmp


by



args=$1
shift
ls $args $@ | grep -v $$.tmp >> ${HOME}/$$.tmp




I found the script here: https://www.tek-tips.com/faqs.cfm?fid=6627



One of the most common link you will see here is "Why not parse ls" at link https://unix.stackexchange.com/questions/128985/why-not-parse-ls-and-what-do-to-instead



The other thing I cannot garantee that this fix will work for all wildcard conditions, so it is provided 'as-is', YMMV.






share|improve this answer





















  • Oh, I was late, I just wanted to suggest using ls -l "$@" | grep -v $$.tmp >>${HOME}/$$.tmp
    – Lorinczy Zsigmond
    Nov 19 '18 at 18:28











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1 Answer
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1 Answer
1






active

oldest

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active

oldest

votes






active

oldest

votes









1














Not a great script, but then you are not using it like it was intented to work IMHO.



/script/location/directory/lsc.sh -la


$1: -la

$2: nothing




/script/location/directory/lsc.sh -la *something*


The shell does wildcard expansion like this:



/script/location/directory/lsc.sh -la 1something1 2something2 3something3 ...


So wildcard expansion happends before the script is called.



Therefore, with that last call of lsc.sh:



$1: -la

$2: 1something1



and the script does ls $1 $2 so only the first directory is processed, which is what you see.





If you want it to process all arguments, after wildcard expansion, replace:



ls $1 $2 | grep -v $$.tmp >> ${HOME}/$$.tmp


by



args=$1
shift
ls $args $@ | grep -v $$.tmp >> ${HOME}/$$.tmp




I found the script here: https://www.tek-tips.com/faqs.cfm?fid=6627



One of the most common link you will see here is "Why not parse ls" at link https://unix.stackexchange.com/questions/128985/why-not-parse-ls-and-what-do-to-instead



The other thing I cannot garantee that this fix will work for all wildcard conditions, so it is provided 'as-is', YMMV.






share|improve this answer





















  • Oh, I was late, I just wanted to suggest using ls -l "$@" | grep -v $$.tmp >>${HOME}/$$.tmp
    – Lorinczy Zsigmond
    Nov 19 '18 at 18:28
















1














Not a great script, but then you are not using it like it was intented to work IMHO.



/script/location/directory/lsc.sh -la


$1: -la

$2: nothing




/script/location/directory/lsc.sh -la *something*


The shell does wildcard expansion like this:



/script/location/directory/lsc.sh -la 1something1 2something2 3something3 ...


So wildcard expansion happends before the script is called.



Therefore, with that last call of lsc.sh:



$1: -la

$2: 1something1



and the script does ls $1 $2 so only the first directory is processed, which is what you see.





If you want it to process all arguments, after wildcard expansion, replace:



ls $1 $2 | grep -v $$.tmp >> ${HOME}/$$.tmp


by



args=$1
shift
ls $args $@ | grep -v $$.tmp >> ${HOME}/$$.tmp




I found the script here: https://www.tek-tips.com/faqs.cfm?fid=6627



One of the most common link you will see here is "Why not parse ls" at link https://unix.stackexchange.com/questions/128985/why-not-parse-ls-and-what-do-to-instead



The other thing I cannot garantee that this fix will work for all wildcard conditions, so it is provided 'as-is', YMMV.






share|improve this answer





















  • Oh, I was late, I just wanted to suggest using ls -l "$@" | grep -v $$.tmp >>${HOME}/$$.tmp
    – Lorinczy Zsigmond
    Nov 19 '18 at 18:28














1












1








1






Not a great script, but then you are not using it like it was intented to work IMHO.



/script/location/directory/lsc.sh -la


$1: -la

$2: nothing




/script/location/directory/lsc.sh -la *something*


The shell does wildcard expansion like this:



/script/location/directory/lsc.sh -la 1something1 2something2 3something3 ...


So wildcard expansion happends before the script is called.



Therefore, with that last call of lsc.sh:



$1: -la

$2: 1something1



and the script does ls $1 $2 so only the first directory is processed, which is what you see.





If you want it to process all arguments, after wildcard expansion, replace:



ls $1 $2 | grep -v $$.tmp >> ${HOME}/$$.tmp


by



args=$1
shift
ls $args $@ | grep -v $$.tmp >> ${HOME}/$$.tmp




I found the script here: https://www.tek-tips.com/faqs.cfm?fid=6627



One of the most common link you will see here is "Why not parse ls" at link https://unix.stackexchange.com/questions/128985/why-not-parse-ls-and-what-do-to-instead



The other thing I cannot garantee that this fix will work for all wildcard conditions, so it is provided 'as-is', YMMV.






share|improve this answer












Not a great script, but then you are not using it like it was intented to work IMHO.



/script/location/directory/lsc.sh -la


$1: -la

$2: nothing




/script/location/directory/lsc.sh -la *something*


The shell does wildcard expansion like this:



/script/location/directory/lsc.sh -la 1something1 2something2 3something3 ...


So wildcard expansion happends before the script is called.



Therefore, with that last call of lsc.sh:



$1: -la

$2: 1something1



and the script does ls $1 $2 so only the first directory is processed, which is what you see.





If you want it to process all arguments, after wildcard expansion, replace:



ls $1 $2 | grep -v $$.tmp >> ${HOME}/$$.tmp


by



args=$1
shift
ls $args $@ | grep -v $$.tmp >> ${HOME}/$$.tmp




I found the script here: https://www.tek-tips.com/faqs.cfm?fid=6627



One of the most common link you will see here is "Why not parse ls" at link https://unix.stackexchange.com/questions/128985/why-not-parse-ls-and-what-do-to-instead



The other thing I cannot garantee that this fix will work for all wildcard conditions, so it is provided 'as-is', YMMV.







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 19 '18 at 18:02









Nic3500

3,32281829




3,32281829












  • Oh, I was late, I just wanted to suggest using ls -l "$@" | grep -v $$.tmp >>${HOME}/$$.tmp
    – Lorinczy Zsigmond
    Nov 19 '18 at 18:28


















  • Oh, I was late, I just wanted to suggest using ls -l "$@" | grep -v $$.tmp >>${HOME}/$$.tmp
    – Lorinczy Zsigmond
    Nov 19 '18 at 18:28
















Oh, I was late, I just wanted to suggest using ls -l "$@" | grep -v $$.tmp >>${HOME}/$$.tmp
– Lorinczy Zsigmond
Nov 19 '18 at 18:28




Oh, I was late, I just wanted to suggest using ls -l "$@" | grep -v $$.tmp >>${HOME}/$$.tmp
– Lorinczy Zsigmond
Nov 19 '18 at 18:28


















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