cut append variable bash

Question

How can I append a string variable which I got through cut with next variable? In the file application.properties, I have value: myValue=/tmp/user/ I tried:

file=myfile.properties
path=$(cat application.properties | grep myValue=)
path2=$(echo $path | cut -d'=' -f 2- )
pathToFile=$path2$file

But output is only: myfile.properties. I need /tmp/user/myfile.properties

Thank you for your help.

Seems your path2 variable's value may be empty(just test it by assigning a test value and pathToFile=$path2$file should work), so better if you could let us know sample Input_file and expected output too. — RavinderSingh13, Mar 13 '17 at 14:39
*nod*. Running `bash -x yourscript` would be helpful for detecting where things are first behaving in an unexpected manner. — Charles Duffy, Mar 13 '17 at 14:39
Path2 always contains value. it was tested, Input file (application.properties) have format: **variable=value** ( For example: myValue=/tmp/user/) next input is file ( these value is obtained from folder) For example: myfile.properies **Output: tmp/user/myfile.properies** I running bash yourscrip.sh — user3468921, Mar 13 '17 at 14:55

score 0 · Answer 1 · answered Mar 13 '17 at 14:39

Don't use cut for this at all: The shell's built-in string manipulation can do this trimming for you. (And don't use cat: It's more efficient to have grep read straight from the file than to have it reading from a separate process that then writes to a FIFO).

file=myfile.properies
path=$(grep myValue= <application.properties)
pathToFile=${path#*=}${file}

cut append variable bash

1 Answers1