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Explore Stack Internal Use awk to split the path on :, then loop over each field and store it in an array. If you come across a field which is already in the array, that means you have seen it before, so don't print it.
Here is an example:
$ MYPATH=.:/foo/bar/bin:/usr/bin:/foo/bar/bin $ awk -F: '{for(i=1;i<=NF;i++) if(!($i in arr)){arr[$i];printf s$i;s=":"}}' <<< "$MYPATH" .:/foo/bar/bin:/usr/bin (Updated to remove the trailing semicolon:.)
Use awk to split the path on :, then loop over each field and store it in an array. If you come across a field which is already in the array, that means you have seen it before, so don't print it.
Here is an example:
$ MYPATH=.:/foo/bar/bin:/usr/bin:/foo/bar/bin $ awk -F: '{for(i=1;i<=NF;i++) if(!($i in arr)){arr[$i];printf s$i;s=":"}}' <<< "$MYPATH" .:/foo/bar/bin:/usr/bin (Updated to remove the trailing semicolon.)
Use awk to split the path on :, then loop over each field and store it in an array. If you come across a field which is already in the array, that means you have seen it before, so don't print it.
Here is an example:
$ MYPATH=.:/foo/bar/bin:/usr/bin:/foo/bar/bin $ awk -F: '{for(i=1;i<=NF;i++) if(!($i in arr)){arr[$i];printf s$i;s=":"}}' <<< "$MYPATH" .:/foo/bar/bin:/usr/bin (Updated to remove the trailing :.)
Use awk to split the path on :, then loop over each field and store it in an array. If you come across a field which is already in the array, that means you have seen it before, so don't print it.
Here is an example:
$ MYPATH=.:/foo/bar/bin:/usr/bin:/foo/bar/bin $ awk -F: -v ORS=: '{for(i=1;i<=NF;i++) if(!($i in arr)){arr[$i];printarr[$i];printf $i;s$i;s=":"}}' <<< "$MYPATH" .:/foo/bar/bin:/usr/bin: (Updated to remove the trailing semicolon.)
Use awk to split the path on :, then loop over each field and store it in an array. If you come across a field which is already in the array, that means you have seen it before, so don't print it.
Here is an example:
$ MYPATH=.:/foo/bar/bin:/usr/bin:/foo/bar/bin $ awk -F: -v ORS=: '{for(i=1;i<=NF;i++) if(!($i in arr)){arr[$i];print $i;}}' <<< "$MYPATH" .:/foo/bar/bin:/usr/bin: Use awk to split the path on :, then loop over each field and store it in an array. If you come across a field which is already in the array, that means you have seen it before, so don't print it.
Here is an example:
$ MYPATH=.:/foo/bar/bin:/usr/bin:/foo/bar/bin $ awk -F: '{for(i=1;i<=NF;i++) if(!($i in arr)){arr[$i];printf s$i;s=":"}}' <<< "$MYPATH" .:/foo/bar/bin:/usr/bin (Updated to remove the trailing semicolon.)
Use awk to split the path on :, then loop over each field and store it in an array. If you come across a field which is already in the array, that means you have seen it before, so don't print it.
Here is an example:
$ MYPATH=.:/foo/bar/bin:/usr/bin:/foo/bar/bin $ awk -F: -v ORS=: '{for(i=1;i<=NF;i++) if(!($i in arr)){arr[$i];print $i;}}' <<< "$MYPATH" .:/foo/bar/bin:/usr/bin: