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![Introduction to if]()
tldp.orgThe TEST-COMMAND list is executed, and if its return status is zero, the ... More information about this subject can be found in the Bash documentation. ... valid UNIX command, any executable program, any executable shell script or any shell ...瀏覽：1166 -
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www.cyberciti.bizExplains how to debug shell script under Linux / UNIX / BSD / Apple OS X Bash shell. Includes easy to follow examples and functions. ... || : will make sure the return code is true, which allows the script to run under -e mode without it breaking due to p瀏覽：1308
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日期：2025-04-27
test returns true in the following cases: test s s is not a null string test -n string string is nonzero test sting1 = string2 the two strings are equal test sting1 != string2 the two strings are not equal test integer1 -eq integer2 the integers are equal...
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日期：2025-04-29
Hope that your answer for this question would be helpful for me as i need to run dos batch files from Pl/sql. Can you provide me dos batch file as like shell script. I tried my best ......
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日期：2025-04-23
Advanced Bash-Scripting Guide: Prev, Chapter 7. Tests, Next. 7.2. File test
operators. Returns true if... -e. file exists. -a. file exists. This is identical in effect to
-e....
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日期：2025-04-28
I've always used telnet for SMTP testing. Finally, got sick of copy/pasting and decided to write a quick script. But scripting telnet is a pain. Netcat to the rescue! Call the script with the following arguments: $ . /...
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日期：2025-04-29
Synopsis Parameters Description Options Arguments Examples See Also SYNOPSIS jrunscript [ options] [ arguments... ] PARAMETERS options Options, if used, should follow immediately after the command name. arguments Arguments, if used, should follow ......
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日期：2025-04-29
test is a command-line utility found in Unix-like operating systems that evaluates ... All remaining arguments return true if the object (file or string) exists, and the ......
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日期：2025-04-29
In the above example, the shell script tests to see if there is a parameter ... 1 then echo "usage: isfile argument" ; exit fi if test -f $1 then echo "$1 is a file" fi ......
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日期：2025-04-28
You can easily test if a file exists under Linux operating system using test command. Display a message if file /etc/passwd exists: test -f ......
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