grep + match value only if value in the end of line

Question

please advice what is wrong with my code, ( I run this code on both OS linux and solaris )

I don't get the line from:

    "file ended with .tmp"

example:

I need to verify if $FILE ended with .tmp or .old etc ...

code with the following example set the parameter: FILE=hosts.tmp

so I expected that grep will match the ".tmp" and because .tmp is the last characters

the same for other TOKENS as ",TEMP" or "previos" or "-OLD" ...etc

code ( ksh script )

     TOKENS=".tmp .old .previous -log temp ,TEMP -OLD previos"

     FILE=hosts.tmp

      for TOKEN in ` echo $TOKENS `

        do

        [[ ` echo $FILE  | grep -c '$TOKEN$'  ` -eq 1 ]] && echo "file ended with $TOKEN"

        done

score 1 · Accepted Answer · answered Jan 09 '13 at 13:46

1

Two problems with your code:

1) as the TOKEN gets passed to grep you need to escape the - like this:

TOKENS=".tmp .old .previous \-log temp ,TEMP"

2) you are using single quotes which means variables are not being expanded, replace with quotes:

[[ ` echo $FILE  | grep -c "$TOKEN$"  ` -eq 1 ]] && echo file ended with $TOKEN

answered Jan 09 '13 at 13:46

faker

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I already set "$TOKEN$" in my code - its also not match the ".tmp" – yael Jan 09 '13 at 13:50
I just took your code made my modifications and ran it on a Linux box, output was: `file ended with .tmp` – faker Jan 09 '13 at 13:57
then you are using different code than the one you posted here. In the one you posted there is no trailing space. – faker Jan 09 '13 at 14:03
1

Use `grep -c -- "$TOKEN$"` and you won't need to escape the hyphen. – Dennis Williamson Jan 09 '13 at 21:11

grep + match value only if value in the end of line

1 Answers1