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| author | Tom Ryder <tom@sanctum.geek.nz> | 2016-08-01 10:46:24 +1200 |
|---|---|---|
| committer | Tom Ryder <tom@sanctum.geek.nz> | 2016-08-01 10:46:24 +1200 |
| commit | db2583c7bba896b46c689c16583a42977f0449b0 (patch) | |
| tree | c24a6c0f2e02bfa21b3c074aa37db6e8196e1362 | |
| parent | Change xrbg(1) to be POSIX sh (diff) | |
| download | dotfiles-db2583c7bba896b46c689c16583a42977f0449b0.tar.gz dotfiles-db2583c7bba896b46c689c16583a42977f0449b0.zip | |
Add rndf(1)
| -rwxr-xr-x | bin/rndf | 11 | ||||
| -rw-r--r-- | man/man1/rndf.1 | 19 |
2 files changed, 30 insertions, 0 deletions
diff --git a/bin/rndf b/bin/rndf new file mode 100755 index 00000000..fa11e68e --- /dev/null +++ b/bin/rndf @@ -0,0 +1,11 @@ +#!/bin/sh +# Choose a random file from a given directory. Ignores dot files. +dir=${1:-.} +set -- "$dir"/* +if ! [ -e "$1" ] ; then + printf >&2 'rndf: No files found in %s\n' "$dir" + exit 1 +fi +argi=$(rndi 1 "$#") || exit +shift "$((argi-1))" +printf '%s\n' "$1" diff --git a/man/man1/rndf.1 b/man/man1/rndf.1 new file mode 100644 index 00000000..522d44e1 --- /dev/null +++ b/man/man1/rndf.1 @@ -0,0 +1,19 @@ +.TH RNDF 1 "August 2016" "Manual page for rndf" +.SH NAME +.B rndf +\- return a low-quality random choice of a random file in a directory +.SH SYNOPSIS +.B rndf +.br +.B rndf +/path/to/dir +.br +.SH DESCRIPTION +.B rndf +prints the name a random file (excluding dot files) from the given directory, +defaulting to the current directory. It uses rndi(1), which is not a +high-quality random number source. +.SH SEE ALSO +rndi(1) +.SH AUTHOR +Tom Ryder <tom@sanctum.geek.nz> |