diff options
Diffstat (limited to 'bin/ax.sh')
-rw-r--r-- | bin/ax.sh | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/bin/ax.sh b/bin/ax.sh new file mode 100644 index 00000000..6ce1e9ea --- /dev/null +++ b/bin/ax.sh @@ -0,0 +1,27 @@ +# Evaluate an Awk expression given on the command line with an optional format + +# Count arguments +case $# in + + # If one argument, we assume format is %s + 1) form=%s expr=$1 ;; + + # If two arguments, first is format, second expression + 2) form=$1 expr=$2 ;; + + # Any other number of arguments is wrong + *) + printf >&2 'ax: Need an expression\n' + exit 2 + ;; +esac + +# Form program +prog=$(printf ' + BEGIN { + printf "%s\\n", %s + } +' "$form" "$expr") + +# Run program +awk "$prog" |