1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
#!/bin/sh
name="shebangs"
version="1.0"
usage_message="Usage: shebangs [PATH]"
help_message=$(/usr/bin/cat <<-EOF
Print the shebang line of each executable script
Usage: shebangs [PATH]
Options:
-h, --help print this message and exit
-v, --version print version number and exit
EOF
)
. /usr/local/lib/myminiparse.sh
# loop through arguments
dir=
for arg; do
case "$arg" in
-q|--quiet)
#ignore these
;;
*)
if [ -z "$dir" ]; then
dir="$arg"
fi
;;
esac
done
if [ -z "$dir" ]; then
dir="."
fi
/usr/bin/find "$dir" -maxdepth 1 -type f -printf "%f\0" \
| /usr/bin/sort -z \
| while IFS= read -r -d '' fn; do
/usr/bin/printf '%s:' "$fn"
/usr/bin/head --lines=1 "$fn"
done | grep --regexp=':#!' | column --separator ':' --table