185 lines
2.3 KiB
HTML
185 lines
2.3 KiB
HTML
<HTML
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>Number of Processes</TITLE
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>Bash Prompt HOWTO: </TH
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>Chapter 11. Prompt Code Snippets</TD
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>11.9. Number of Processes</H1
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><P
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><TT
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CLASS="USERINPUT"
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><B
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>ps ax | wc -l | tr -d " "</B
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></TT
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> <EM
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>OR</EM
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>
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<TT
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CLASS="USERINPUT"
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><B
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>ps ax | wc -l | awk '{print $1}'</B
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></TT
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> <EM
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>OR</EM
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> <TT
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CLASS="USERINPUT"
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><B
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>ps ax | wc -l | sed -e "s: ::g"</B
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></TT
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>. In
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each case, <TT
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CLASS="USERINPUT"
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><B
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>tr</B
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></TT
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> or <TT
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CLASS="USERINPUT"
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><B
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>awk</B
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></TT
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> or
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<TT
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CLASS="USERINPUT"
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><B
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>sed</B
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></TT
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> is used to remove the undesirable whitespace.</P
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><P
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>Relative speed: any one of these variants takes about 0.9 seconds on an
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unloaded 486SX25. </P
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