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| author | Tom Ryder <tom@sanctum.geek.nz> | 2016-08-20 15:53:19 +1200 |
|---|---|---|
| committer | Tom Ryder <tom@sanctum.geek.nz> | 2016-08-20 15:53:39 +1200 |
| commit | a143ce9c38942ebe2245ad0e7c33462087692809 (patch) | |
| tree | b86f9f8882c043cd074f6e061086f92cc653823b /sh | |
| parent | Add an issue about vr() (diff) | |
| download | dotfiles-a143ce9c38942ebe2245ad0e7c33462087692809.tar.gz dotfiles-a143ce9c38942ebe2245ad0e7c33462087692809.zip | |
Port lhn() to POSIX sh
Diffstat (limited to 'sh')
| -rw-r--r-- | sh/shrc.d/lhn.sh | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sh/shrc.d/lhn.sh b/sh/shrc.d/lhn.sh new file mode 100644 index 00000000..15fced6e --- /dev/null +++ b/sh/shrc.d/lhn.sh @@ -0,0 +1,12 @@ +# Print the history number of the last command +# "fc" is specified by POSIX, but does not seem to be in dash, so its being +# included here rather than in e.g. ~/.bashrc.d is a bit tenuous. +lhn () { + if ! command -v fc >/dev/null 2>&1 ; then + printf 'lhn(): fc: command not found\n' + return 1 + fi + set -- "$(fc -l -1)" + [ -n "$1" ] || return + printf '%u\n' "$1" +} |