41 lines
1.8 KiB
Bash
Executable file
41 lines
1.8 KiB
Bash
Executable file
#!/bin/sh
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# SPDX-FileCopyrightText: 2024 Splunk, Inc.
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# SPDX-License-Identifier: Apache-2.0
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# shellcheck disable=SC1091
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. "$(dirname "$0")"/common.sh
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CMD='who -H'
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HEADER='USERNAME LINE HOSTNAME TIME'
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# shellcheck disable=SC2016
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HEADERIZE='{NR == 1 && $0 = header}'
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# shellcheck disable=SC2016
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FORMAT='{length(hostname) || hostname=$NF; gsub("[)(]", "",hostname); time=$3; for (i=4; i<=lastTimeColumn; i++) time = time " " $i}'
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# shellcheck disable=SC2016
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PRINTF='{if (NR == 1) {print $0} else {printf "%-14s %-10s %-40.40s %-s\n", $1,$2,hostname,time}}'
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if [ "$KERNEL" = "Linux" ] ; then
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FILL_BLANKS='{hostname = ""; lastTimeColumn = NF-1; if (NF < 5) {hostname = "<console>"; lastTimeColumn = NF}}'
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elif [ "$KERNEL" = "SunOS" ] ; then
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FILL_BLANKS='{hostname = ""; lastTimeColumn = NF-1; if (NF < 6) {hostname = "<console>"; lastTimeColumn = NF}}'
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elif [ "$KERNEL" = "AIX" ] ; then
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FILL_BLANKS='{hostname = ""; lastTimeColumn = NF-1; if (NF < 6) {hostname = "<console>"; lastTimeColumn = NF}}'
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elif [ "$KERNEL" = "HP-UX" ] ; then
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CMD='who -HR'
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FILL_BLANKS='{hostname = ""; lastTimeColumn = NF-1; if (NF < 5) {hostname = "<console>"; lastTimeColumn = NF}}'
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elif [ "$KERNEL" = "Darwin" ] ; then
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FILL_BLANKS='{hostname = ""; lastTimeColumn = NF-1; if (NF < 6) {hostname = "<console>"; lastTimeColumn = NF}}'
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elif [ "$KERNEL" = "FreeBSD" ] ; then
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FILL_BLANKS='{hostname = ""; lastTimeColumn = NF-1; if (NF < 6) {hostname = "<console>"; lastTimeColumn = NF}}'
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fi
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assertHaveCommand "$CMD"
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out=$($CMD | tee "$TEE_DEST" | $AWK "$HEADERIZE $FILL_BLANKS $FORMAT $PRINTF" header="$HEADER")
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lines=$(echo "$out" | wc -l)
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if [ "$lines" -gt 1 ]; then
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echo "$out"
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echo "Cmd = [$CMD]; | $AWK '$HEADERIZE $FILL_BLANKS $FORMAT $PRINTF' header=\"$HEADER\"" >> "$TEE_DEST"
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else
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echo "No data is present" >> "$TEE_DEST"
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fi
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