xiongshenglan
7bced397c9
In some embedded systems, users only use the ps provided by the busybox. But the ps provided by the busybox does not support the -eo option by default. As a result, an error is reported when the userdel is used. So add a judgment on ps. If there is no ps -eo, traverse the process directly. The error information is as follows: # userdel xsl ps: invalid option -- 'e' Signed-off-by: xiongshenglan <xiongshenglan@huawei.com>
32 lines
768 B
Bash
Executable File
32 lines
768 B
Bash
Executable File
#!/bin/sh
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PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
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# Check user exists, and if so, send sigkill to processes that the user owns
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ps -eo user >/dev/null 2>&1
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if [ $? -eq 0 ]; then
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RUNNING=`ps -eo user | grep -Fx "$SUBJECT" | wc -l`
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# if the user does not exist, RUNNING will be 0
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if [ "${RUNNING}x" = "0x" ]; then
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exit 0
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fi
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fi
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# If there is no ps -eo, traverse the process directly.
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ls -1 /proc | while IFS= read -r PROC; do
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echo "$PROC" | grep -E '^[0-9]+$' >/dev/null
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if [ $? -ne 0 ]; then
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continue
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fi
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if [ -d "/proc/${PROC}" ]; then
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USR=`stat -c "%U" /proc/${PROC}`
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if [ "${USR}" = "${SUBJECT}" ]; then
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echo "Killing ${SUBJECT} owned ${PROC}"
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kill -9 "${PROC}"
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fi
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fi
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done
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