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| author | Tom Ryder <tom@sanctum.geek.nz> | 2016-08-02 11:26:39 +1200 |
|---|---|---|
| committer | Tom Ryder <tom@sanctum.geek.nz> | 2016-08-02 11:26:39 +1200 |
| commit | ca632bed9240bce35c6acffceeec7c46a3d9b3f1 (patch) | |
| tree | 8c17a2f236f7146b78157239e75cd4fb2d3784a5 /bin | |
| parent | Strip trailing newline from clrd() (diff) | |
| download | dotfiles-ca632bed9240bce35c6acffceeec7c46a3d9b3f1.tar.gz dotfiles-ca632bed9240bce35c6acffceeec7c46a3d9b3f1.zip | |
Move clrd()/clwr() to scripts
clrd(1) is POSIX sh, but clwr(1) ideally needs Readline, so I've left it
as #!/bin/bash for now.
Diffstat (limited to 'bin')
| -rwxr-xr-x | bin/clrd | 11 | ||||
| -rw-r--r-- | bin/clwr | 16 |
2 files changed, 27 insertions, 0 deletions
diff --git a/bin/clrd b/bin/clrd new file mode 100755 index 00000000..0e41d2db --- /dev/null +++ b/bin/clrd @@ -0,0 +1,11 @@ +#!/bin/sh +self=clrd +if [ "$#" -ne 1 ] ; then + printf >&2 '%s: Need input file\n' "$self" + exit 2 +elif ! [ -t 1 ] ; then + printf >&2 '%s: stdout not a terminal\n' "$self" + exit 2 +fi +clear +tail -f -- "$@" diff --git a/bin/clwr b/bin/clwr new file mode 100644 index 00000000..677e0a24 --- /dev/null +++ b/bin/clwr @@ -0,0 +1,16 @@ +#!/usr/bin/env bash +self=clwr +if (($# != 1)) ; then + printf >&2 '%s: Need output file\n' "$self" + exit 2 +elif [[ ! -t 0 ]] ; then + printf >&2 '%s: stdin not a terminal\n' "$self" + exit 2 +elif [[ ! -t 1 ]] ; then + printf >&2 '%s: stdout not a terminal\n' "$self" + exit 2 +fi +exec 3>"$1" +while { clear && IFS= read -er line ; } ; do + printf '%s\n' >&3 +done |