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shell if eq知識摘要

(共計:20)
  • Other Comparison Operators
    Note that integer and string comparison use a different set of operators. ... [ $a == z* ]] # True if $a starts with an "z" (pattern matching). .... is unnecessary, as the script will, in any case, #+ return the exit status of the last command executed.

  • Linux shell編程——if條件判斷 - wokaotesting - 博客頻道 - CSDN.NET
    [macg@mac-home ~]$ vi test.sh: echo "input the num:" read num echo "input is $num" if [ -z "$JHHOME" -a ...

  • If / Else Statements (Shell/bash Scripting) | Sany's Linux and Open Source Blog
    Shell scripts use fairly standard syntax for if statements. The conditional statement is executed using either the test command or the [ command ]. In its most basic form an if statement is: #!/bin/bash if [ "$1" -eq "abc" ] then echo "in if block" fi (No

  • if [ $? -eq 0 ] .. can someone explain this? | Unix Linux Forums ...
    I thought it means if the return code of the previous command not equal to 0... Is this correct?

  • bash - What does if [ $? -eq 0 ] mean for shell scripts? - Stack Overflow
    There is this line in a shell script i have seen: grep -e ERROR ... It's checking the return value ( $? ) of grep . In this case it's comparing it to 0 ...

  • Lodizal Shell Shield - ZAM EverQuest :: An EQ Community, Wiki, and Database Site
    Everquest Quest Information for Lodizal Shell Shield ... Rouge shroud does work. he does take 1000 platinum insted of 10 000 gold if you hand in less then 1000 platinum he will say sorry stranger but that is not enough to barter with.

  • *nix Shell | UNIX / Linux Shell Hints and Tips (a http://steve-parker.org/sh/sh.shtml subproject)
    UNIX / Linux Shell Hints and Tips (a http://steve-parker.org/sh/sh.shtml subproject) ... When a Solaris server is overloaded, this is one way to check what actual memory each process is using. Here I am restricting the checks to one user (“steve”) but by

  • The Unix Shell's Humble If - giant robots smashing into other giant robots
    The Unix shell is often overlooked by software developers more familiar with higher level languages. This is unfortunate because the shell can be one of the most important parts of a developer’s toolkit. From the one-off grep search or sed replacement in

  • shell编程——if语句if -z -n -f -eq -ne -lt - 博客园
    2012年7月5日 - shell if, c语言if. 0为真,走then, 正好相反,非0走then. 不支持整数变量直接if 必须:if [ i –ne 0 ] 但支持字符串变量直接if if [ str ] 如果字符串非0, 支持 ...

  • shell编程——if语句_macg_新浪博客
    2009年8月6日 - bin/sh if cat 111-tmp.txt | grep ting1 then echo found else echo "no found" fi, $ vi testsh.sh #!/bin/sh cat 111-tmp.txt | grep ting1 if [ $? -eq 0 ] then

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