![]() > Hi, > > I know that I should use =~ to match regex (bash version 4). > > However, the man page is not very clear. Echo -h echo --help # Prints help to the terminal window man echo # Displays the man page in the. Alias chrome='/Applications/Google Chrome.app/Contents/MacOS/Google. Performs a history search when the Page Up key is pressed. The first case command with a parameter that matches the string specified in. Search the Manual Page Index for String Matches in Terminal for OS X. Variety of ways to get additional command details or find help from the command line. Man page of IPSET The match will try to find a matching entry in the sets and the target will try to add an entry to the first set to which it can be added. H Searches header locations for a header whose name matches the given string and then opens it. Pass a full header name (such as NSView.h) for increased performance. How to find files with certain text in the Terminal. Ask Question. Will this work for files that spotlight doesn't index (i.e. Files inside hidden folders, system config files, etc)? Browse other questions tagged macos mac unix terminal search or ask your own question. 8 years, 5 months ago. 156,565 times. I don't find how to match > (matching any single character). For example, the following regex > doesn't match xxxxtxt. Does anybody know how to match any character > (should be '.' In perl) in bash. > > [[ '$1' =~ 'xxx.txt' ]] > > Looks good to me. 513 > regex='xxx.txt' 514 > [[ xxxxtxt =~ $regex ]] 515 > echo $? Search The Manual Page Index For String Matches In Terminal For Mac Pro0 516 > -- Time flies like the wind. Fruit flies like a banana. Stranger things have.0. Happened but none stranger than this. Does your driver's license say Organ.0 Donor?Black holes are where God divided by zero. Listen to me! We are all- 000 individuals! What if this weren't a hypothetical question? Steveo at syslang.net. > Hi, > > I know that I should use =~ to match regex (bash version 4). > > However, the man page is not very clear. I don't find how to match > (matching any single character). For example, the following regex > doesn't match xxxxtxt. Does anybody know how to match any character > (should be '.' In perl) in bash. > > [[ '$1' =~ 'xxx.txt' ]] > > > -- > Regards, > Peng > > When you quote the string on the right hand side of =~ it changes to a simple string match instead of a regex match. It is sometimes difficult to specify a regex literally (and unquoted), so it's best to use a variable as shown in Steven's reply to you. The quoting is most likely unnecessary on the left hand side as well. -- Visit serverfault.com to get your system administration questions answered. Peng Yu wrote: > I know that I should use =~ to match regex (bash version 4). > > However, the man page is not very clear. I don't find how to match > (matching any single character). For example, the following regex > doesn't match xxxxtxt. Does anybody know how to match any character > (should be '.' In perl) in bash. > > [[ '$1' =~ 'xxx.txt' ]] The manual page for bash says that the rules of regex(3) apply: An additional binary operator, =~, is available, with the same precedence as == and!=. When it is used, the string to the right of the operator is considered an extended regular expression and matched accordingly (as in regex(3)). The return value is 0 if the string matches the pattern, and 1 otherwise. And also: Any part of the pattern may be quoted to force it to be matched as a string. Amazon.com: Bosch GSR 1080-2-Li Professional Cordless Drill/Driver - Body Only: Home Improvement. BOSCH PS31-2A 12V Max Lithium Ion 3/8' Compact 2 Speed Cordless Drill Driver Kit (Certified Refurbished). Voltage, 10.8 volts. Bosch gsr 10.8-2-li drill drivers for mac. 175 Million buyers want your new or used Bosch Li-Ion 10.8 V Cordless Drills. Little Giant; Lodge; Mac Allister; Mac Tools; Magic Chef; Mag-Lite; Mainstays. Bosch Professional GSB 10.8-2 LI 10.8V Body Only Cordless Li-Ion 2-Speed. Bosch GSR 10.8V-15 FC Professional 4-Multi Drill Driver Adapter UPS *Body Only*. BOSCH TSR 1080 - 2 - LI ( 1B ) 10mm 10.8V Rechargeable Cordless Electric Drill. The clamping of the head screwdriver and drill bits of different specifications. ![]() Search The Manual Page Index For String Matches In Terminal For Mac FreeThus in the expression [[ '$1' =~ 'xxx.txt' ]] the fact that the pattern is quoted [here the whole pattern appears within double quotes] has turned the dot '.' Into a plain literal character, instead of a meta-character which matches any single character. The usual method of avoiding quotes in the pattern is to omit them: [[ $1 =~ xxx.txt ]] # the dot '.' In the pattern is a meta-character or to use a variable: pattern='xxx.txt' # a 7-character string [[ $1 =~ $pattern ]] # the dot '.' In $pattern is a meta-character Example: using all literals in an instance of bash: $ [[ xxxxtxt =~ xxx.txt ]] && echo true true $ Also notice that quotes are not needed around the left-hand side $1: Word splitā ting and pathname expansion are not performed on the words between the [[ and ]]. Thus there is no need to use quotation marks to suppress word splitting inside double brackets [[. > On Mon, Sep 26, 2011 at 08:19:27PM -0500, Peng Yu wrote: >Hi, > >I know that I should use =~ to match regex (bash version 4). > >However, the man page is not very clear. I don't find how to match >(matching any single character). For example, the following regex >doesn't match xxxxtxt. Does anybody know how to match any character >(should be '.' In perl) in bash.
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