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Closed 8 years ago.
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I'm trying to loop over all environment variables in a shell script, and create an HTML query string from ones which match a pattern. Unfortunately, I can't seem to assign to variables in the loop. I've got this:
#!/bin/sh
IFS=$'\n'
TAGS=""
for item in $(printenv)
do
if [[ $item == FOO_TAG_* ]]
then
TAGS = "${TAGS}&${item}"
fi
done
But this gives me
/etc/script.sh: line 9: TAGS: command not found
/etc/script.sh: line 9: TAGS: command not found
How do I fix this?
In the assignment, remove space between variable name and =
TAGS="${TAGS}${item}"
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i want to copy some files from ../soft to ../copu_new. The name of that tests are in ../sim/soft.txt.
I had en error : cp:cannot stat '../soft/file1.txt\file2.txt\file3.txt': File too long
Follow the code below:
input="../sim/soft.txt"
while read line
do
##to skip the first line of the file
a=$(tail -n +1)
##From string to table
for i in $a
do
table_soft[$i]="$i"
done
for i in "${tabke_soft[#]}"
do
cp ../soft/$i ../copy_new
done
done < $input
The file Soft.txt is :
###This all tests:
file1.txt
file2.txt
file3.txt
It's most likely the classic bash issue where trying to run an array through a for loop gives you all the content unless you wrap it in double quotes first. Try this..
a="$(tail -n +1)"
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I have a file from Wild Wild Web and it contains malformed UTF8. I handled malformed UTF8 in my other codes in previous versions of Raku. In 2020.10 version, I am running into this issue below. Has the support for utf8-c8 changed (this page says it should work, but it doesn't seem to) :
https://docs.raku.org/language/unicode#index-entry-UTF-8_Clean-8
This page has this example:
say slurp($test-file, enc => 'utf8-c8');
Now my code on the command line:
raku -e 'my $a = slurp("zlist"); for $a.lines { .say }'
Malformed UTF-8 near bytes 73 e2 5f at line 55 col 14
in block <unit> at -e line 1
Then using this:
raku -e 'my $a = slurp("zlist", enc => 'utf8-c8'); for $a.lines { .say }'
===SORRY!=== Error while compiling -e
Undeclared routine:
utf8-c8 used at line 1
My code is simple and essentially copied from the example. What am I doing wrong?
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Closed 2 years ago.
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I have lots of different strings that look like redhat-ubi-ubi7-7.8
I want to use the string to make variables so that I end up having something like
vendor=redhat
product=ubi
image=ubi7
tag=7.8
How can I do this?
With bash and a here string:
string='redhat-ubi-ubi7-7.8'
IFS=- read -r vendor product image tag <<< "$string"
echo "$vendor"
Output:
redhat
Using P.E. parameter expansion.
string='redhat-ubi-ubi7-7.8'
vendor=${string%%-*}
tag=${string##*-}
image=${string%-*}
product=${image#*-}
product=${product%-*}
image=${image##*-}
printf '%s\n' vendor=$vendor product=$product image=$image tag=$tag
Output
vendor=redhat
product=ubi
image=ubi7
tag=7.8
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Closed 4 years ago.
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I have the following simple bash code to test string comparison:
#!/bin/sh
BRANCH="master"
echo $ref
if [[ "$ref" = "refs/heads/$BRANCH" ]]
then
echo "Matches"
else
echo "Do not match"
fi
When I ran the code using export ref=/refs/heads/master && . sample I get the following result:
/refs/heads/master
Do not match
What may be causing the problem?
What is causing the problem is the missing slash in your test: /refs/heads/master is not equal to refs/heads/master!
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Closed 6 years ago.
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why am I getting "bash missing'" for this:
function get_xserver ()
{
case $TERM in
xterm )
XSERVER=$(who am i | awk '{print $NF}' | tr -d ')''(' )
;;
aterm | rxvt)
# Find some code that works here. ...
;;
esac
}
This is the exact error:
bash: [: missing `]'
The error is not in the code you posted. The error message:
-bash: [: missing `]'
Means exactly what it says - there is a missing ] character, namely in a [ test ] statement.
Try it:
$ [ 1 -eq 2
-bash: [: missing `]'
You need to identify where the error actually is, and add the missing closing bracket.