better bash style

Author: holgerbrandl

README.md

@@ -63,7 +63,7 @@ Note: It might feel more intuitive to provide  dependencies as an argument to `k
 References
 ============
 
-The initial version of `kscript` was kindly contributed by Oscar Gonzales.
+The initial version of `kscript` was kindly contributed by Oscar Gonzalez.
 
 `kscript` is inspired by [kotlin-script](https://github.com/andrewoma/kotlin-script) which is another great way to do scripting in Kotlin. `kotlin-script` has more options compared to `kscript`, but the latter is conceptually cleaner (no code wrapping) and more simplistic.
 

kscript

@@ -1,13 +1,13 @@
 #!/bin/bash
 
 ### auto-install expandcp.kts into same dir as kscript for automatic dependency resolution if not yet in PATH
-if [ -z "$(which expandcp.kts 2> /dev/null)" ]; then
+if ! which expandcp.kts &> /dev/null; then
     installDir=$(dirname $(which kscript))
     curl -s https://raw.githubusercontent.com/holgerbrandl/kscript/master/expandcp.kts > ${installDir}/expandcp.kts
     chmod u+x ${installDir}/expandcp.kts
 fi
 
-dependencies=$(grep -F "//DEPS" $1 | head -n1 | cut -f2- -d' ' | tr ',' ' ' | tr ';' ' ' )
+dependencies=$(grep -F "//DEPS" $1 | head -n1 | cut -f2- -d' ' | tr ',;')
 #dependencies=" org.docopt:docopt:0.6.0-SNAPSHOT log4j:log4j:1.2.14 "
 
 if [ -n "$dependencies" ]; then
@@ -26,8 +26,7 @@ shift
 ## work around missing md5sum on mac
 if [ "${OSTYPE//[0-9.]/}" == "darwin" ]; then md5sum(){ md5 -r $1; }; fi
 
-scriptCheckSum=$(md5sum ${scriptFile} | awk '{ print $1 }')
-scriptCheckSum=${scriptCheckSum:0:6}
+scriptCheckSum=$(md5sum $scriptFile | cut -c1-6)
 
 jarDir=$(dirname ${scriptFile})     # see https://github.com/holgerbrandl/kscript/issues/5
 jarFile=${jarDir}/.$(basename ${scriptFile} .kts).${scriptCheckSum}.jar