diff options
| -rw-r--r-- | diff-to-file.sh | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/diff-to-file.sh b/diff-to-file.sh new file mode 100644 index 0000000..077498a --- /dev/null +++ b/diff-to-file.sh @@ -0,0 +1,17 @@ +#!/bin/bash + +if test "${#}" -ne 2; then + printf "%s\n" \ + "compare two files and output the difference" \ + "usage: $(basename $0) <file1> <file2>" + exit 1 +fi + +if ! command -v comm &>/dev/null; then + printf "%s\n" "comm not found" + exit 1 +fi + +output="${1}__not_in__${2}" +comm -23 <(sort "${1}") <(sort "${2}") > "${output}" +printf "%s\n" "results of what is in ${1} and not in ${2} in ${output}" |